Professional HVAC Services in Detroit, MI
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Comprehensive HVAC Service Repair and Electrical Services in Detroit, MI

 

Detroit Service Overview

  • Local Priority: We provide dedicated HVAC, plumbing, and electrical support specifically for neighborhoods across the city of Detroit.
  • Certified Expertise: Our technicians are highly trained to handle the historic infrastructure and specific climate needs of Wayne County homes.
  • Efficiency Focus: We specialize in optimizing your home systems to ensure long-term comfort and reduced utility costs in older and renovated properties alike.

 

At Randazzo Heating, Cooling, and Electrical, we know your home is more than just a place to live—it’s where your life happens. That’s why we’re proud to offer dependable, top-quality services in Detroit, MI, designed to keep your household running smoothly. Whether you need urgent repairs or long-term system upgrades, we’re here to help with reliable electrical, HVAC, sump pump, and water heater services.

Call 586-336-1111 or contact us online to experience the comfort and confidence that come from working with Detroit’s most trusted home service professionals.

Living in Detroit, MI: Serving Every Neighborhood

Detroit runs along major corridors like Woodward Avenue, I-94, and I-75, connecting neighborhoods from Corktown and Midtown to the University District and the East Side. This is one of the highest-demand service areas in Southeast Michigan, with constant calls coming from homes near landmarks like Comerica Park, the Fox Theatre, and Belle Isle. From older brick homes to renovated properties across the city, our team is already working in your area. Call 586-336-1111 or schedule online for fast service in Detroit.

 

“Julian was very nice and very efficient with his work. He showed me everything he checked and worked on and did a great job. Very thorough and efficient.”
SAMANTHA O.

Real Experience Across Detroit, MI Neighborhoods

Detroit is not one type of home or one type of system. You have historic properties in areas like Indian Village and Sherwood Forest, updated homes in Corktown, and long-standing neighborhoods across the West Side and East Side. That means systems fail in different ways depending on the home. We’ve worked throughout Detroit long enough to understand those differences, from tight spacing between homes on the West Side to older duct layouts in early 1900s builds, and fix problems the right way.

Heating Services in Detroit, MI

Heating is critical in Detroit, especially with long winters and older homes that lose heat quickly. Many systems are aging and require consistent maintenance or replacement. When your heat starts acting up, it usually falls into a few key areas:

  • Furnace repair and diagnostics
  • New furnace installation and replacement
  • Annual heating maintenance
  • Heat pump systems

In neighborhoods like the University District and West Village, we often see older furnaces that run inefficiently and struggle to keep homes warm. We address those issues to restore reliable heat and improve overall performance.

 

“I had a service call for a furnace issue. Matt explained the issue and process clearly. He was professional and worked efficiently, answered questions. I have had Randazzo service my heating and cooling for years and recommend them.”
ROXANE K.

 

Air Conditioning Services in Detroit, MI

Cooling older Detroit homes presents unique challenges. Many properties were not originally designed for central air, which leads to airflow and temperature issues. Most cooling calls involve:

  • AC repair and troubleshooting
  • New AC installation and system upgrades
  • Seasonal maintenance and tune-ups
  • Ductless mini-split solutions

In many Detroit homes, especially older brick builds with limited duct space, the original system was never designed to handle modern layouts. We start by evaluating airflow, duct capacity, and system sizing to ensure balanced temperatures across every level.

 

Solving Detroit Home Issues

Problem: Outdated electrical panels in historic Detroit neighborhoods often fail under the load of modern appliances or HVAC systems.

Solution: We perform comprehensive panel upgrades that bring older homes up to code and ensure stable power for your entire property.


Problem: Older brick homes frequently suffer from “hot zones” upstairs because original ductwork wasn’t sized for central air.

Solution: Our technicians use airflow diagnostics and zoning strategies to balance temperatures perfectly across all floors.


Problem: Aging furnaces in West Side homes struggle with Michigan’s extreme winters, leading to high utility costs and cold spots.

Solution: We provide seasonal maintenance and high-efficiency furnace replacements built specifically to handle local climate extremes.

 

Water Heater & Sump Pump Services in Detroit, MI

Water systems in Detroit homes must handle daily use while protecting against potential basement issues. Many homes rely on older equipment that needs regular attention. When these systems fail, it usually comes down to a few common needs:

  • Water heater repair and installation
  • Tankless water heater upgrades
  • Routine maintenance
  • Sump pump repair and replacement

In areas with basements, sump pumps play a key role in preventing water damage. We install and maintain systems that keep your home protected and your hot water consistent.

Electrical Services in Detroit, MI

Electrical systems across Detroit vary widely, especially in older homes built decades ago. Many properties still rely on outdated panels or wiring that cannot support modern demand. Most electrical work we complete includes:

  • Generator installation and service
  • Generac and Kohler generator services
  • Electrical panel upgrades
  • EV charger installation
  • Wiring and rewiring
  • Surge protection
  • Whole-home electrical inspections

If your home still runs on an older panel, especially in historic neighborhoods, it may not safely support newer systems. We upgrade your setup so everything is ready for modern power demands.

 

“Don, is very polite, professional and knowledgeable. He explained what issues were found with our furnace and gave us an option as well. I would recommend Don and Randazzo to my friends and family.”
KIM HALL

 

Why Detroit Chooses Randazzo

Detroit homeowners expect straightforward service and fast response times. Here’s why your neighbors trust Randazzo:

  • Experienced Technicians: Skilled professionals who understand the unique needs of Detroit’s historic and modern homes.
  • Clear, Honest Quotes: No surprises. Just straightforward pricing and clear communication about your repairs.
  • Fast Local Response: We are already working across Detroit neighborhoods, allowing us to respond quickly when you need us.
  • Full-Service Support: One company for your HVAC, electrical, and water systems to keep your home running smoothly.

 

Schedule Service in Detroit Today

If you live in Detroit, from Corktown and Midtown to the West Side and East Side, we are ready to help. Whether your system needs repair, maintenance, or full replacement, you can count on fast, professional service.
  Call 586-336-1111 now or schedule your appointment online.

 

Detroit Home Service FAQ

If your system is making loud noises, failing to lower the temperature, or showing signs of water leaks, it is time to call for professional service.
Absolutely. Our licensed electricians can perform a complete safety audit of your wiring and panel to ensure your home meets current electrical codes.
Yes, we specialize in addressing the unique airflow and heating challenges presented by Detroit’s historic brick properties.

Recent Jobs and Reviews in Detroit, MI

Job Locations and Reviews

# HVAC Maintenance - AHM Completion Summary

Completed annual heating maintenance on Lennox gas furnace system. Performed comprehensive tune-up including inspection of all major components, burner assembly, heat exchanger, gas valve operation, and electrical connections. Verified proper blower motor function, checked and cleaned flame sensor, and tested ignition system. Inspected venting system and confirmed proper draft. All safety controls tested and operating within manufacturer specifications. Unit found in good working condition with no deficiencies noted. System operational and ready for heating season.
# HVAC Maintenance - AHM Completion Summary

Completed annual heating maintenance on Lennox gas furnace system. Performed comprehensive tune-up including inspection of all major components, burner assembly, heat exchanger, gas valve operation, and electrical connections. Verified proper blower motor function, checked and cleaned flame sensor, and tested ignition system. Inspected venting system and confirmed proper draft. All safety controls tested and operating within manufacturer specifications. Unit found in good working condition with no deficiencies noted. System operational and ready for heating season.
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# HVAC Maintenance - AHM Completion Summary Completed annual heating maintenance on Lennox gas furnace system. Performed comprehensive tune-up including inspection of all major components, burner assembly, heat exchanger, gas valve operation, and electrical connections. Verified proper blower motor function, checked and cleaned flame sensor, and tested ignition system. Inspected venting system and confirmed proper draft. All safety controls tested and operating within manufacturer specifications. Unit found in good working condition with no deficiencies noted. System operational and ready for heating season.
Detroit, MI 48202
# HVAC Maintenance Service Summary

Performed comprehensive annual heating and cooling maintenance on residential split system. Conducted thorough inspection of gas furnace assembly, verifying proper operation of blower motor, heat exchanger, and ignition components. Checked electrical connections and control board functionality. All furnace safety mechanisms tested and confirmed operational.

Inspected outdoor condensing unit and identified heavily contaminated condenser coil with significant accumulation of dirt, dust, and debris restricting airflow. Performed complete coil cleaning to restore proper heat transfer efficiency and system performance. Removed access panel and thoroughly cleaned coil fins to remove built-up contamination throughout entire coil surface.

Verified refrigerant pressures and system charge. Inspected electrical connections at outdoor unit and confirmed secure wiring. Tested capacitor and contactor operation. Evaluated fan motor performance and lubricated as n
# HVAC Maintenance Service Summary

Performed comprehensive annual heating and cooling maintenance on residential split system. Conducted thorough inspection of gas furnace assembly, verifying proper operation of blower motor, heat exchanger, and ignition components. Checked electrical connections and control board functionality. All furnace safety mechanisms tested and confirmed operational.

Inspected outdoor condensing unit and identified heavily contaminated condenser coil with significant accumulation of dirt, dust, and debris restricting airflow. Performed complete coil cleaning to restore proper heat transfer efficiency and system performance. Removed access panel and thoroughly cleaned coil fins to remove built-up contamination throughout entire coil surface.

Verified refrigerant pressures and system charge. Inspected electrical connections at outdoor unit and confirmed secure wiring. Tested capacitor and contactor operation. Evaluated fan motor performance and lubricated as n
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# HVAC Maintenance Service Summary Performed comprehensive annual heating and cooling maintenance on residential split system. Conducted thorough inspection of gas furnace assembly, verifying proper operation of blower motor, heat exchanger, and ignition components. Checked electrical connections and control board functionality. All furnace safety mechanisms tested and confirmed operational. Inspected outdoor condensing unit and identified heavily contaminated condenser coil with significant accumulation of dirt, dust, and debris restricting airflow. Performed complete coil cleaning to restore proper heat transfer efficiency and system performance. Removed access panel and thoroughly cleaned coil fins to remove built-up contamination throughout entire coil surface. Verified refrigerant pressures and system charge. Inspected electrical connections at outdoor unit and confirmed secure wiring. Tested capacitor and contactor operation. Evaluated fan motor performance and lubricated as n
Detroit, MI 48205
# HVAC Install - Complete System

Completed full HVAC system replacement including installation of 70,000 BTU furnace and 2-ton air conditioning unit with rear discharge configuration. Modified existing ductwork by fabricating and installing new supply plenum and recutting heat runs to accommodate new equipment specifications. Installed whole-home humidifier and duct liner for improved comfort and efficiency. Reconnected all necessary electrical and gas connections, ensuring proper clearances and code compliance. Obtained mechanical and electrical permits prior to installation. Configured system for optimal airflow and verified all safety controls operational. System commissioned and tested successfully with all components functioning within manufacturer specifications.
# HVAC Install - Complete System

Completed full HVAC system replacement including installation of 70,000 BTU furnace and 2-ton air conditioning unit with rear discharge configuration. Modified existing ductwork by fabricating and installing new supply plenum and recutting heat runs to accommodate new equipment specifications. Installed whole-home humidifier and duct liner for improved comfort and efficiency. Reconnected all necessary electrical and gas connections, ensuring proper clearances and code compliance. Obtained mechanical and electrical permits prior to installation. Configured system for optimal airflow and verified all safety controls operational. System commissioned and tested successfully with all components functioning within manufacturer specifications.
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# HVAC Install - Complete System Completed full HVAC system replacement including installation of 70,000 BTU furnace and 2-ton air conditioning unit with rear discharge configuration. Modified existing ductwork by fabricating and installing new supply plenum and recutting heat runs to accommodate new equipment specifications. Installed whole-home humidifier and duct liner for improved comfort and efficiency. Reconnected all necessary electrical and gas connections, ensuring proper clearances and code compliance. Obtained mechanical and electrical permits prior to installation. Configured system for optimal airflow and verified all safety controls operational. System commissioned and tested successfully with all components functioning within manufacturer specifications.
Detroit, MI 48235
# HVAC Maintenance - AHC Service Summary

Completed comprehensive Air Handler Check (AHC) maintenance service covering both heating and cooling system components as part of recurring preventive maintenance program. Performed thorough inspection of residential furnace unit, accessing internal components through upper cabinet panel to evaluate blower motor assembly, electrical connections, ignition system, and control module functionality. All mechanical and electrical components were inspected and found to be operating within normal parameters.

Identified severely clogged air filter with excessive accumulation of dust, dirt, and particulate matter throughout the diamond-pattern mesh screen, which was significantly restricting airflow and reducing system efficiency. Removed and replaced the heavily contaminated filter element to restore proper airflow and system performance. The extent of debris buildup indicated the filter had exceeded its recommended service interval, which can lead t
# HVAC Maintenance - AHC Service Summary

Completed comprehensive Air Handler Check (AHC) maintenance service covering both heating and cooling system components as part of recurring preventive maintenance program. Performed thorough inspection of residential furnace unit, accessing internal components through upper cabinet panel to evaluate blower motor assembly, electrical connections, ignition system, and control module functionality. All mechanical and electrical components were inspected and found to be operating within normal parameters.

Identified severely clogged air filter with excessive accumulation of dust, dirt, and particulate matter throughout the diamond-pattern mesh screen, which was significantly restricting airflow and reducing system efficiency. Removed and replaced the heavily contaminated filter element to restore proper airflow and system performance. The extent of debris buildup indicated the filter had exceeded its recommended service interval, which can lead t
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# HVAC Maintenance - AHC Service Summary Completed comprehensive Air Handler Check (AHC) maintenance service covering both heating and cooling system components as part of recurring preventive maintenance program. Performed thorough inspection of residential furnace unit, accessing internal components through upper cabinet panel to evaluate blower motor assembly, electrical connections, ignition system, and control module functionality. All mechanical and electrical components were inspected and found to be operating within normal parameters. Identified severely clogged air filter with excessive accumulation of dust, dirt, and particulate matter throughout the diamond-pattern mesh screen, which was significantly restricting airflow and reducing system efficiency. Removed and replaced the heavily contaminated filter element to restore proper airflow and system performance. The extent of debris buildup indicated the filter had exceeded its recommended service interval, which can lead t
Detroit, MI 48219
# HVAC Install - Complete System

## Job Description

Completed full HVAC system installation including 70,000 BTU furnace and 2-ton air conditioning unit. Obtained mechanical and electrical permits prior to installation. Installed new equipment with proper ductwork liner, established all necessary connections, and reconnected system components to ensure operational functionality. Applied available utility rebate and processed payment via credit card upon completion. All required installation paperwork and documentation finalized on-site.
# HVAC Install - Complete System

## Job Description

Completed full HVAC system installation including 70,000 BTU furnace and 2-ton air conditioning unit. Obtained mechanical and electrical permits prior to installation. Installed new equipment with proper ductwork liner, established all necessary connections, and reconnected system components to ensure operational functionality. Applied available utility rebate and processed payment via credit card upon completion. All required installation paperwork and documentation finalized on-site.
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# HVAC Install - Complete System ## Job Description Completed full HVAC system installation including 70,000 BTU furnace and 2-ton air conditioning unit. Obtained mechanical and electrical permits prior to installation. Installed new equipment with proper ductwork liner, established all necessary connections, and reconnected system components to ensure operational functionality. Applied available utility rebate and processed payment via credit card upon completion. All required installation paperwork and documentation finalized on-site.
Detroit, MI 48239
Completed installation of 2-ton air conditioning system with matching evaporator coil on left side return configuration. Installed outdoor condenser unit on concrete pad in side yard with refrigerant lines and electrical disconnect, connected indoor evaporator coil to existing Lennox furnace, and performed electrical and mechanical reconnection to ensure proper system operation.
Completed installation of 2-ton air conditioning system with matching evaporator coil on left side return configuration. Installed outdoor condenser unit on concrete pad in side yard with refrigerant lines and electrical disconnect, connected indoor evaporator coil to existing Lennox furnace, and performed electrical and mechanical reconnection to ensure proper system operation.
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Completed installation of 2-ton air conditioning system with matching evaporator coil on left side return configuration. Installed outdoor condenser unit on concrete pad in side yard with refrigerant lines and electrical disconnect, connected indoor evaporator coil to existing Lennox furnace, and performed electrical and mechanical reconnection to ensure proper system operation.
Detroit, MI 48205
# Service Report

Responded to service call for furnace blowing cold air. Upon inspection, diagnosed and resolved heating system malfunction by addressing faulty components within the burner assembly and control system. Verified proper electrical connections to blower motor, control board, and associated wiring harnesses. Tested system operation and confirmed furnace now heating properly with all safety controls functioning correctly. Performed complete maintenance service including inspection of heat exchanger, burner assembly, and blower components. Cleaned and adjusted system as needed. Unit restored to full operational status with both parts and labor covered under warranty. All components tested and verified operating within manufacturer specifications upon completion.
# Service Report

Responded to service call for furnace blowing cold air. Upon inspection, diagnosed and resolved heating system malfunction by addressing faulty components within the burner assembly and control system. Verified proper electrical connections to blower motor, control board, and associated wiring harnesses. Tested system operation and confirmed furnace now heating properly with all safety controls functioning correctly. Performed complete maintenance service including inspection of heat exchanger, burner assembly, and blower components. Cleaned and adjusted system as needed. Unit restored to full operational status with both parts and labor covered under warranty. All components tested and verified operating within manufacturer specifications upon completion.
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# Service Report Responded to service call for furnace blowing cold air. Upon inspection, diagnosed and resolved heating system malfunction by addressing faulty components within the burner assembly and control system. Verified proper electrical connections to blower motor, control board, and associated wiring harnesses. Tested system operation and confirmed furnace now heating properly with all safety controls functioning correctly. Performed complete maintenance service including inspection of heat exchanger, burner assembly, and blower components. Cleaned and adjusted system as needed. Unit restored to full operational status with both parts and labor covered under warranty. All components tested and verified operating within manufacturer specifications upon completion.
Detroit, MI 48235
# Water Heater Replacement Estimate

Conducted on-site assessment for water heater replacement in residential basement utility area. Evaluated existing Rheem Performance Platinum water heater and surrounding plumbing infrastructure. During inspection, identified critical issues including absence of manufacturer tag on existing unit, inability to locate water drain connection, and missing main water shut-off valve. Documented electrical panel configuration and existing plumbing connections including copper supply lines with shut-off valves at base of unit. Photographed current installation showing top-mounted connections with flexible connectors and blue-painted piping. Provided comprehensive replacement estimate with service credit applied toward future installation work.
# Water Heater Replacement Estimate

Conducted on-site assessment for water heater replacement in residential basement utility area. Evaluated existing Rheem Performance Platinum water heater and surrounding plumbing infrastructure. During inspection, identified critical issues including absence of manufacturer tag on existing unit, inability to locate water drain connection, and missing main water shut-off valve. Documented electrical panel configuration and existing plumbing connections including copper supply lines with shut-off valves at base of unit. Photographed current installation showing top-mounted connections with flexible connectors and blue-painted piping. Provided comprehensive replacement estimate with service credit applied toward future installation work.
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# Water Heater Replacement Estimate Conducted on-site assessment for water heater replacement in residential basement utility area. Evaluated existing Rheem Performance Platinum water heater and surrounding plumbing infrastructure. During inspection, identified critical issues including absence of manufacturer tag on existing unit, inability to locate water drain connection, and missing main water shut-off valve. Documented electrical panel configuration and existing plumbing connections including copper supply lines with shut-off valves at base of unit. Photographed current installation showing top-mounted connections with flexible connectors and blue-painted piping. Provided comprehensive replacement estimate with service credit applied toward future installation work.
Detroit, MI 48206
# HVAC Maintenance - ACM Service Report

Completed routine Air Care Maintenance (ACM) service including replacement of air scrubber bulb and pad as part of recurring maintenance program. Replaced heavily soiled air filter showing significant discoloration and particulate accumulation throughout pleated media. Conducted carbon monoxide safety testing with calibrated meter, confirming zero ppm reading and verifying safe system operation.
# HVAC Maintenance - ACM Service Report

Completed routine Air Care Maintenance (ACM) service including replacement of air scrubber bulb and pad as part of recurring maintenance program. Replaced heavily soiled air filter showing significant discoloration and particulate accumulation throughout pleated media. Conducted carbon monoxide safety testing with calibrated meter, confirming zero ppm reading and verifying safe system operation.
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# HVAC Maintenance - ACM Service Report Completed routine Air Care Maintenance (ACM) service including replacement of air scrubber bulb and pad as part of recurring maintenance program. Replaced heavily soiled air filter showing significant discoloration and particulate accumulation throughout pleated media. Conducted carbon monoxide safety testing with calibrated meter, confirming zero ppm reading and verifying safe system operation.
Detroit, MI 48213
Detroit, MI - # ComfortGuard Maintenance Service Summary

Completed comprehensive ComfortGuard preventive maintenance visit on residential HVAC system. Performed full system inspection with access panel removal to examine internal components including blower motor assembly, electrical connections, and mechanical components. Installed specialty MERV 16-X6672 high-efficiency air filter as requested to improve indoor air quality and system performance. All electrical connections, wiring harnesses, and mechanical components were inspected and found to be in proper working condition. System operational testing confirmed normal functionality upon completion of maintenance procedures.
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# ComfortGuard Maintenance Service Summary Completed comprehensive ComfortGuard preventive maintenance visit on residential HVAC system. Performed full system inspection with access panel removal to examine internal components including blower motor assembly, electrical connections, and mechanical components. Installed specialty MERV 16-X6672 high-efficiency air filter as requested to improve indoor air quality and system performance. All electrical connections, wiring harnesses, and mechanical components were inspected and found to be in proper working condition. System operational testing confirmed normal functionality upon completion of maintenance procedures.
Detroit, MI 48235
# HVAC Full System Estimate Summary

Conducted comprehensive on-site evaluation for complete HVAC system replacement and duct cleaning services. Customer requesting new central air conditioning unit installation with priority timeline within one month. Performed exterior assessment of existing electrical service entry point, meter location, and utility connections to determine adequate power supply for new equipment installation. Evaluated basement mechanical space including current water heater positioning, available clearances, and wall construction to plan optimal placement for new air handler and associated ductwork modifications. Documented existing utility infrastructure, drainage systems, and basement layout to develop accurate quote for full system replacement including new outdoor condensing unit, indoor air handler, refrigerant lines, electrical upgrades, thermostat installation, and complete duct cleaning service.
# HVAC Full System Estimate Summary

Conducted comprehensive on-site evaluation for complete HVAC system replacement and duct cleaning services. Customer requesting new central air conditioning unit installation with priority timeline within one month. Performed exterior assessment of existing electrical service entry point, meter location, and utility connections to determine adequate power supply for new equipment installation. Evaluated basement mechanical space including current water heater positioning, available clearances, and wall construction to plan optimal placement for new air handler and associated ductwork modifications. Documented existing utility infrastructure, drainage systems, and basement layout to develop accurate quote for full system replacement including new outdoor condensing unit, indoor air handler, refrigerant lines, electrical upgrades, thermostat installation, and complete duct cleaning service.
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# HVAC Full System Estimate Summary Conducted comprehensive on-site evaluation for complete HVAC system replacement and duct cleaning services. Customer requesting new central air conditioning unit installation with priority timeline within one month. Performed exterior assessment of existing electrical service entry point, meter location, and utility connections to determine adequate power supply for new equipment installation. Evaluated basement mechanical space including current water heater positioning, available clearances, and wall construction to plan optimal placement for new air handler and associated ductwork modifications. Documented existing utility infrastructure, drainage systems, and basement layout to develop accurate quote for full system replacement including new outdoor condensing unit, indoor air handler, refrigerant lines, electrical upgrades, thermostat installation, and complete duct cleaning service.
Detroit, MI 48216
Detroit, MI - # Electrical Install - Generator Service Report

Completed Day 2 of generator power transfer installation following utility company removal of meter lock. Successfully integrated KOHLER transfer switch with existing electrical infrastructure, establishing all necessary conduit connections and wiring terminations between the transfer switch, utility meter, and building electrical system. System is now operational and ready for automatic power transfer functionality.
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# Electrical Install - Generator Service Report Completed Day 2 of generator power transfer installation following utility company removal of meter lock. Successfully integrated KOHLER transfer switch with existing electrical infrastructure, establishing all necessary conduit connections and wiring terminations between the transfer switch, utility meter, and building electrical system. System is now operational and ready for automatic power transfer functionality.
Detroit, MI 48221
# Service Report

Responded to service call for furnace displaying red flashing light on 3-month-old unit that was still providing heat. Upon arrival, performed diagnostic inspection of furnace and associated ductwork system. Conducted visual examination of HVAC installation in attic space, inspecting metal ductwork connections, insulated rectangular trunk lines, and metallic elbow transitions for proper installation and potential issues.

Evaluated furnace control board error code indicated by flashing red light sequence. Checked all electrical connections, verified proper voltage supply, and inspected safety switches including pressure switches, flame sensor, and limit controls. Tested system operation through complete heating cycle to confirm unit was functioning despite error indication.

Inspected ductwork installation including insulated rectangular trunk lines and metallic transition elbows in attic space. Verified all duct connections were secure and properly sealed. Examined i
# Service Report

Responded to service call for furnace displaying red flashing light on 3-month-old unit that was still providing heat. Upon arrival, performed diagnostic inspection of furnace and associated ductwork system. Conducted visual examination of HVAC installation in attic space, inspecting metal ductwork connections, insulated rectangular trunk lines, and metallic elbow transitions for proper installation and potential issues.

Evaluated furnace control board error code indicated by flashing red light sequence. Checked all electrical connections, verified proper voltage supply, and inspected safety switches including pressure switches, flame sensor, and limit controls. Tested system operation through complete heating cycle to confirm unit was functioning despite error indication.

Inspected ductwork installation including insulated rectangular trunk lines and metallic transition elbows in attic space. Verified all duct connections were secure and properly sealed. Examined i
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# Service Report Responded to service call for furnace displaying red flashing light on 3-month-old unit that was still providing heat. Upon arrival, performed diagnostic inspection of furnace and associated ductwork system. Conducted visual examination of HVAC installation in attic space, inspecting metal ductwork connections, insulated rectangular trunk lines, and metallic elbow transitions for proper installation and potential issues. Evaluated furnace control board error code indicated by flashing red light sequence. Checked all electrical connections, verified proper voltage supply, and inspected safety switches including pressure switches, flame sensor, and limit controls. Tested system operation through complete heating cycle to confirm unit was functioning despite error indication. Inspected ductwork installation including insulated rectangular trunk lines and metallic transition elbows in attic space. Verified all duct connections were secure and properly sealed. Examined i
Detroit, MI 48235
# Service Report: Tanked Water Heater Diagnostic

Responded to service call for a Performa brand tanked water heater with pilot light failure. Performed diagnostic evaluation of the unit's gas control system, thermocouple, and ignition components. Inspected the water heater installation including copper supply piping, temperature and pressure relief valve connections, and gas line configuration. Assessed the overall condition of the tank, control assembly with red gas valve handle, and related plumbing connections. 

Diagnosed pilot light assembly malfunction preventing sustained ignition. Customer declined repair and opted for diagnostic service only with no parts or labor warranty.
# Service Report: Tanked Water Heater Diagnostic

Responded to service call for a Performa brand tanked water heater with pilot light failure. Performed diagnostic evaluation of the unit's gas control system, thermocouple, and ignition components. Inspected the water heater installation including copper supply piping, temperature and pressure relief valve connections, and gas line configuration. Assessed the overall condition of the tank, control assembly with red gas valve handle, and related plumbing connections. 

Diagnosed pilot light assembly malfunction preventing sustained ignition. Customer declined repair and opted for diagnostic service only with no parts or labor warranty.
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# Service Report: Tanked Water Heater Diagnostic Responded to service call for a Performa brand tanked water heater with pilot light failure. Performed diagnostic evaluation of the unit's gas control system, thermocouple, and ignition components. Inspected the water heater installation including copper supply piping, temperature and pressure relief valve connections, and gas line configuration. Assessed the overall condition of the tank, control assembly with red gas valve handle, and related plumbing connections. Diagnosed pilot light assembly malfunction preventing sustained ignition. Customer declined repair and opted for diagnostic service only with no parts or labor warranty.
Detroit, MI 48206
# HVAC Maintenance - AHM Service Report

Completed routine annual furnace maintenance as part of preventative maintenance membership program. Performed comprehensive tune-up on 0-year-old furnace system including standard inspection, cleaning, and operational testing protocols.

During visual inspection, identified severe rust and corrosion on heat exchanger components. Metal surfaces displayed extensive deterioration with reddish-brown oxidation and textured scaling throughout, indicating prolonged moisture exposure. U-shaped heat exchanger channels showed significant rust penetration with darker interior surfaces and compromised structural integrity. Sharp metal edges exhibited less corrosion but surrounding areas demonstrated pervasive deterioration requiring immediate attention.

Secondary inspection revealed additional corrosion evidence on furnace cabinet and internal mounting surfaces. Vertical rust streaking patterns observed on cabinet panels and wooden structural supports, co
# HVAC Maintenance - AHM Service Report

Completed routine annual furnace maintenance as part of preventative maintenance membership program. Performed comprehensive tune-up on 0-year-old furnace system including standard inspection, cleaning, and operational testing protocols.

During visual inspection, identified severe rust and corrosion on heat exchanger components. Metal surfaces displayed extensive deterioration with reddish-brown oxidation and textured scaling throughout, indicating prolonged moisture exposure. U-shaped heat exchanger channels showed significant rust penetration with darker interior surfaces and compromised structural integrity. Sharp metal edges exhibited less corrosion but surrounding areas demonstrated pervasive deterioration requiring immediate attention.

Secondary inspection revealed additional corrosion evidence on furnace cabinet and internal mounting surfaces. Vertical rust streaking patterns observed on cabinet panels and wooden structural supports, co
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# HVAC Maintenance - AHM Service Report Completed routine annual furnace maintenance as part of preventative maintenance membership program. Performed comprehensive tune-up on 0-year-old furnace system including standard inspection, cleaning, and operational testing protocols. During visual inspection, identified severe rust and corrosion on heat exchanger components. Metal surfaces displayed extensive deterioration with reddish-brown oxidation and textured scaling throughout, indicating prolonged moisture exposure. U-shaped heat exchanger channels showed significant rust penetration with darker interior surfaces and compromised structural integrity. Sharp metal edges exhibited less corrosion but surrounding areas demonstrated pervasive deterioration requiring immediate attention. Secondary inspection revealed additional corrosion evidence on furnace cabinet and internal mounting surfaces. Vertical rust streaking patterns observed on cabinet panels and wooden structural supports, co
Detroit, MI 48221
# HVAC Maintenance - AHC Service Report

Completed annual heating maintenance and comprehensive tune-up on residential furnace system as part of Air Care Membership complimentary service. Unit was reported to be operating properly at time of service call, with maintenance performed during scheduled 10:00 AM – 2:00 PM window.

## Service Performed

Conducted thorough inspection and maintenance of furnace system with 0 years of service life. Removed access panels to gain full access to internal components for detailed examination. Performed visual inspection of all major system components including heat exchanger, blower motor assembly, ignition system, and burner assembly.

Inspected electrical connections throughout the unit, including terminal blocks, control board wiring, and safety circuit connections. Verified proper wire routing and connection integrity across multiple colored conductors including line voltage and low voltage wiring. Examined motor assemblies and associated electr
# HVAC Maintenance - AHC Service Report

Completed annual heating maintenance and comprehensive tune-up on residential furnace system as part of Air Care Membership complimentary service. Unit was reported to be operating properly at time of service call, with maintenance performed during scheduled 10:00 AM – 2:00 PM window.

## Service Performed

Conducted thorough inspection and maintenance of furnace system with 0 years of service life. Removed access panels to gain full access to internal components for detailed examination. Performed visual inspection of all major system components including heat exchanger, blower motor assembly, ignition system, and burner assembly.

Inspected electrical connections throughout the unit, including terminal blocks, control board wiring, and safety circuit connections. Verified proper wire routing and connection integrity across multiple colored conductors including line voltage and low voltage wiring. Examined motor assemblies and associated electr
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# HVAC Maintenance - AHC Service Report Completed annual heating maintenance and comprehensive tune-up on residential furnace system as part of Air Care Membership complimentary service. Unit was reported to be operating properly at time of service call, with maintenance performed during scheduled 10:00 AM – 2:00 PM window. ## Service Performed Conducted thorough inspection and maintenance of furnace system with 0 years of service life. Removed access panels to gain full access to internal components for detailed examination. Performed visual inspection of all major system components including heat exchanger, blower motor assembly, ignition system, and burner assembly. Inspected electrical connections throughout the unit, including terminal blocks, control board wiring, and safety circuit connections. Verified proper wire routing and connection integrity across multiple colored conductors including line voltage and low voltage wiring. Examined motor assemblies and associated electr
Detroit, MI 48228
Performed annual furnace maintenance as part of customer's membership program. Conducted comprehensive inspection of furnace components including motor assembly, electrical connections, and ventilation system. All systems verified to be in normal working condition with no visible damage or anomalies detected.
Performed annual furnace maintenance as part of customer's membership program. Conducted comprehensive inspection of furnace components including motor assembly, electrical connections, and ventilation system. All systems verified to be in normal working condition with no visible damage or anomalies detected.
RZ C.
RZ C. Checked in
Performed annual furnace maintenance as part of customer's membership program. Conducted comprehensive inspection of furnace components including motor assembly, electrical connections, and ventilation system. All systems verified to be in normal working condition with no visible damage or anomalies detected.
Detroit, MI 48205
Performed ComfortGuard Maintenance Package service on HVAC system, addressing customer-reported noise from PVC pipe area near condensation pump. Inspected interior components, finding all electrical connections secure and control board functioning properly. Thoroughly cleaned severely dirt-caked outdoor condenser unit to restore proper airflow and system efficiency, and replaced filters as part of scheduled 5-year maintenance visit.
Performed ComfortGuard Maintenance Package service on HVAC system, addressing customer-reported noise from PVC pipe area near condensation pump. Inspected interior components, finding all electrical connections secure and control board functioning properly. Thoroughly cleaned severely dirt-caked outdoor condenser unit to restore proper airflow and system efficiency, and replaced filters as part of scheduled 5-year maintenance visit.
RZ C.
RZ C. Checked in
Performed ComfortGuard Maintenance Package service on HVAC system, addressing customer-reported noise from PVC pipe area near condensation pump. Inspected interior components, finding all electrical connections secure and control board functioning properly. Thoroughly cleaned severely dirt-caked outdoor condenser unit to restore proper airflow and system efficiency, and replaced filters as part of scheduled 5-year maintenance visit.
Detroit, MI 48205
Performed detailed inspection of 40+ year old non-functional Waterbury natural gas furnace located in basement. Documented extensive age-related deterioration and wear on internal components. Evaluated electrical service panel and existing ductwork configuration for replacement compatibility. Recommended complete system replacement with new furnace and air conditioning unit per promotional bundle offering.
Performed detailed inspection of 40+ year old non-functional Waterbury natural gas furnace located in basement. Documented extensive age-related deterioration and wear on internal components. Evaluated electrical service panel and existing ductwork configuration for replacement compatibility. Recommended complete system replacement with new furnace and air conditioning unit per promotional bundle offering.
RZ T.
RZ T. Checked in
Performed detailed inspection of 40+ year old non-functional Waterbury natural gas furnace located in basement. Documented extensive age-related deterioration and wear on internal components. Evaluated electrical service panel and existing ductwork configuration for replacement compatibility. Recommended complete system replacement with new furnace and air conditioning unit per promotional bundle offering.
Detroit, MI 48205
Conducted in-home estimate for customer interested in comparing installation options between traditional central AC and mini-split system for a property with no existing cooling. Inspection revealed an unfinished basement area with exposed ceiling structure and existing ductwork connected to a furnace unit, which could potentially accommodate a traditional central AC system with proper modifications.
Conducted in-home estimate for customer interested in comparing installation options between traditional central AC and mini-split system for a property with no existing cooling. Inspection revealed an unfinished basement area with exposed ceiling structure and existing ductwork connected to a furnace unit, which could potentially accommodate a traditional central AC system with proper modifications.
RZ R.
RZ R. Checked in
Conducted in-home estimate for customer interested in comparing installation options between traditional central AC and mini-split system for a property with no existing cooling. Inspection revealed an unfinished basement area with exposed ceiling structure and existing ductwork connected to a furnace unit, which could potentially accommodate a traditional central AC system with proper modifications.
Detroit, MI 48219

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What To Expect

Discover The Randazzo Difference

Preferred Dealer

We install Mitsubishi, Kohler & Lennox brands and are Michigan’s largest award-winning Lennox Premier Dealer.

Fully Licensed & Insured

Our experts are fully licensed and insured, with the expertise to deliver the highest value and the lowest price.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every heating, cooling, and electrical service we perform.

One-Day Installs

Tight on Time? Don’t have multiple days to wait for an installation? We have you covered. Our expert team of technicians will install your new heating or cooling system in one day.

No Subcontractors

We value our in-house team’s talent and knowledge, which equips them to tackle all our customers' requests without hiring subcontractors.

Instant Rebates

Randazzo Heating, Cooling, and Electrical believes your time is precious, so we instantly process the rebate before we say our last goodbye.

Preferred Dealer

We install Mitsubishi, Kohler & Lennox brands and are Michigan’s largest award-winning Lennox Premier Dealer.

Fully Licensed & Insured

Our experts are fully licensed and insured, with the expertise to deliver the highest value and the lowest price.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every heating, cooling, and electrical service we perform.

One-Day Installs

Tight on Time? Don’t have multiple days to wait for an installation? We have you covered. Our expert team of technicians will install your new heating or cooling system in one day.

No Subcontractors

We value our in-house team’s talent and knowledge, which equips them to tackle all our customers' requests without hiring subcontractors.

Instant Rebates

Randazzo Heating, Cooling, and Electrical believes your time is precious, so we instantly process the rebate before we say our last goodbye.

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Our Reviews

See What Your Neighbors Are Saying

I had an excellent experience with Randazzo for my furnace and AC replacement. I was faced with the second expensive repair in less than a year for a 17 year old furnace and decided to invest in a new system. Randazzo scheduled a salesman out for…

Glen D.

Glen D.

Recently our 17-year old, slightly undersized, central air conditioner lost its ability to cool our 2,500 square foot house, even on mildly warm Michigan summer days. I reached out to Alex at Randazzo Heating & Cooling, and he asked me a few diagnostic questions before dispatching…

Edmund S.

Edmund S.

The men who came to my home were friendly, knowledgeable and did exactly what they needed to do to fix our AC. It now works perfectly! Thank-you, Randazzo ~ we will be calling you for our next tuneup in the Fall. FIVE STARS***** I am updating…

Jennifer D.

Jennifer D.

Growing up I used to see the Randazzo commercials and sing the jingle. Randazzo has to be a reputable to have been in business for so long. Randazzo is living up to its reputation. Especially, with the wonderful crew that we were graced with. The entire…

Byron and Naomi P.

Byron and Naomi P.

I called Randazzo’s to replace my furnace, and get a new AC. The salesman, Brent Hall, came out and gave me a complete comprehensive introduction to their Lenix equipment. I ordered the top of the line package, within days Jacob Shastachuk, the installer was here and…

Lucia C.

Lucia C.