Stay comfortable all year round, boost your efficiency, and protect your investments with Randazzo Heating, Cooling, and Electrical. Our technicians are certified and insured to handle all your HVAC and electrical services in Ann Arbor, MI, and the surrounding communities.
Heating and Cooling Services in Ann Arbor, MI
As a Michigan-based company, we know the weather can change quickly and reach extremes. Our experts provide comprehensive furnace and heating services and AC unit services to keep your equipment in top shape. Have peace of mind with systems that work effectively, efficiently, and safely.
Heater and AC Repairs in Ann Arbor
Need a professional to fix your heating system? Or need repairs for your AC unit? You can count on Randazzo Heating, Cooling, and Electrical to provide your solution. We’re a trusted choice for local HVAC and furnace repairs around Ann Arbor, MI.
If you suspect there’s an issue with your equipment or your system stops working altogether, we can provide emergency services to restore your unit’s functionality and performance.
Our technicians conduct detailed inspections, identify the source of an issue, and explain your service options with upfront estimates. We keep our work vans equipped with the necessary tools and parts, ensuring we can fix your system as quickly as possible.
Installations
You may need a new heater or air conditioning replacement if your systems have aged significantly, need the same repairs frequently, or make odd sounds. As a Lennox Premier Dealer, we can help you choose from the industry’s top-rated systems at competitive prices.
Our experts offer useful advice to help you choose units based on your home’s size and layout, energy preferences, and budget requirements. On a day that works best for you, we’ll remove your old unit, install your replacement, and complete testing to verify that it meets performance standards. Typically, we complete this process within 10 hours.
Maintenance
We recommend scheduling air conditioning maintenance and heating maintenance services at least once a year. During our annual checkups, our technicians conduct detailed inspections to identify issues early on and prevent costly repairs. We complete tune-ups and lubricate all moving parts to keep your systems working optimally and extend their longevity.
Water Heater Services
Hot water is a necessity for your home. When doing the dishes, taking a hot shower, or completing a load of laundry, you rely on your water heater to work as it should.
Randazzo technicians are experts in water heater repair and installation in Ann Arbor. We’ve worked with tankless, standard, hybrid and many other kinds of water heaters. Keep your house supplied with fresh, hot water throughout the year. Our hot water heater repair services and installations are comprehensive and done right the first time.
Electrical Services
In Ann Arbor, MI, Randazzo Heating, Cooling, and Electrical is a leading choice for residential electrical services. We use the industry’s best techniques to repair, install, replace, or maintain electrical systems. Work with us to receive exceptional services for your whole-home wiring, electrical panel, or generator needs.
Contact the Best Heating and Cooling Company in Ann Arbor
Need HVAC, hot water, or electrical services for your home? Randazzo Heating, Cooling, and Electrical is ready to help. We go the extra mile to exceed your expectations with every service. Call 586-271-8003 or 586-271-8003 (toll free) for more information and contact us to request a free estimate.
Recent Jobs and Reviews in Ann Arbor, MI
Job Locations and Reviews
Successfully completed installation of a 2-ton Lennox ML14XC1-024 air conditioning system with matching CK4DCT-24B coil. Unit was positioned on a 30x30x3 concrete pad at rear of residence against brick exterior wall. Installation included reconnection of existing electrical service with 20-amp disconnect, 1/2-inch flex whip, and GFCI protection. Completed 3/4-inch PVC condensate drain line routing and installed new 3/4-inch lineset with proper insulation. All mechanical, electrical, and air conditioning permits were obtained prior to installation, and system was tested for proper operation upon completion.
Responded to warranty call for low voltage issue affecting thermostat and air conditioning system that had been occurring for three days. Diagnosed failed transformer and damaged thermostat wire as root cause of malfunction. Ran new 5-wire thermostat cable from air handler to thermostat location, replaced defective transformer, and restored proper 24VAC control voltage to system. Verified thermostat communication and tested air conditioning operation to confirm proper system functionality upon completion.
Responded to service call for air conditioning unit not turning on with flashing "A" error code on control board. Upon inspection of the 4-month-old outdoor unit, diagnosed control board fault indicated by error code display. Performed electrical testing using digital multimeter to verify voltage readings and circuit integrity at the control board terminals. Documented existing control board configuration and wiring connections prior to troubleshooting. Determined issue covered under parts and labor warranty due to equipment age. Advised on warranty claim process for defective control board replacement to restore system operation.
Completed routine Air Care Cooling maintenance on HVAC system. Performed comprehensive inspection of evaporator coil assembly, verified proper airflow across aluminum fins, and conducted electrical diagnostics using digital clamp meter, recording amperage draw of 74.24 amps to ensure system operating within manufacturer specifications.
Completed routine maintenance on a 5-year-old central air conditioning system that was operating properly. Performed comprehensive inspection of outdoor condensing unit, cleaned condenser coil and fan assembly, checked refrigerant lines and connections, and verified proper system operation. Unit showed normal wear consistent with age and outdoor exposure; all components functioning within manufacturer specifications with no issues identified.
Completed callback inspection on recently installed 70,000 BTU furnace and 2-ton air conditioning system. Verified proper installation of PVC venting system with purple primer markings throughout vertical and horizontal runs, confirmed secure mounting of all ductwork and mechanical components in utility space. Noted potential combustion air deficiency requiring follow-up assessment to ensure adequate ventilation for safe furnace operation per code requirements.
Responded to gas leak call on Lennox furnace system. Performed diagnostic inspection and pressure testing to identify source of gas leak. Inspected gas valve, manifold connections, and supply piping for leaks using combustible gas detector and soap bubble solution. Replaced defective gas valve assembly under warranty. Verified all connections were properly sealed and torqued to manufacturer specifications. Conducted final leak check and operational testing to confirm system safety and proper function.
Completed annual cooling maintenance on residential split system HVAC unit. Performed comprehensive inspection of indoor Lennox furnace with air handler cabinet and outdoor condenser unit. Verified proper operation of all system components, checked refrigerant levels, inspected electrical connections, and confirmed adequate airflow through ductwork and filter systems. All equipment found to be operating within normal parameters with no immediate service needs identified.
Conducted on-site assessment of aging HVAC system with both air conditioning condenser and furnace estimated at 20+ years old. Documented existing equipment conditions through photographic inspection, including exterior condenser unit with visible wear and interior furnace components showing age-related deterioration. Prepared comprehensive replacement quote for complete system upgrade, discussing options for simultaneous replacement of both cooling and heating units to maximize efficiency and avoid future service interruptions.
Performed annual cleaning and maintenance on HVAC system per customer request. Upon inspection, found both evaporator coil and condenser unit heavily contaminated with accumulated dust, dirt, and debris. The evaporator coil exhibited severely matted and compressed aluminum fins with significant buildup causing grayish-brown discoloration throughout. Fin spacing was compromised due to dense accumulation creating a felted texture across surfaces. Condenser unit showed similar heavy contamination with thick, matted debris layer obscuring individual fin spacing and restricting airflow. Thoroughly cleaned evaporator coil assembly, removing accumulated contaminants from aluminum fins and restoring proper fin spacing for optimal heat transfer. Cleaned copper refrigerant tubing showing oxidation and discoloration. Addressed condenser coil cleaning, removing substantial debris buildup from all accessible fin surfaces to restore airflow capacity and heat exchange efficiency. Inspected refrigera
Conducted on-site assessment for air conditioning system replacement on aging residential unit. Evaluated existing HVAC infrastructure including furnace installation, electrical service capacity at exterior meter location, and overall system configuration to provide comprehensive replacement quote for new air conditioning equipment.
Conducted comprehensive assessment of 25-year-old furnace and air conditioning system located in basement for replacement estimate. Both units currently operational but have reached end of expected service life. Evaluated existing Carrier outdoor condenser unit, associated refrigerant lines, electrical connections, and indoor furnace components to determine specifications for replacement equipment and identify any necessary upgrades to ductwork, electrical service, or venting systems required for new installation.
Completed scheduled Air Care Maintenance on two air conditioning systems and two air handler units. Performed comprehensive system inspections including electrical diagnostics with multimeter readings, verified proper operation of Healthy Climate components, inspected control boards and wiring harnesses, and documented equipment condition with photos. All units tested within normal operating parameters and preventive maintenance tasks completed per manufacturer specifications.
Completed scheduled air conditioning maintenance service including inspection of evaporator coil and air handler system. Verified thermostat operation showing proper temperature display and control functionality, replaced air filter and evaporator pad as part of routine preventive maintenance protocol.
Completed estimate for replacement of 39-year-old York furnace and air conditioning system located in basement mechanical room. Assessed existing natural gas furnace with associated ductwork and outdoor condensing unit, both units operational but at end of service life. Provided BOGO replacement quote for complete heating and cooling system upgrade including new furnace, air handler, evaporator coil, and outdoor condensing unit with updated refrigerant lines and necessary electrical connections.
Responded to customer concern regarding bathroom exhaust fan allowing cold air infiltration when both on and off. Inspected ceiling-mounted ventilation unit and electrical connections. Identified improper damper operation allowing exterior air backflow through vent housing. Verified wiring connections were secure and fan motor functioning correctly.
Completed estimate for whole-home surge protector installation at a 1972 condominium. Inspected existing electrical service consisting of multiple digital electric meters mounted on exterior brick wall with weathered metal enclosures. Documented current metering configuration showing three OpenWay digital meters serving multiple units with various conduits and wiring connections. Assessed panel accessibility and existing grounding system, noting exposed grounding conductors present at installation. Photographed meter bank arrangement and service entrance equipment to determine optimal surge protection device placement and compatibility with existing infrastructure. Provided recommendations for Type 2 surge protective device installation based on observed electrical service configuration and building age.
Responded to service call for 2-month-old furnace running excessively hot with thermostat temperature reading inaccuracies. Upon inspection, verified thermostat displayed 74°F while actual supply air temperature measured 32.4°F at heat exchanger, indicating significant temperature sensor malfunction. Configured S40 thermostat setup to restore proper temperature calibration and system communication, resolving incorrect temperature readings and preventing furnace from overheating due to faulty sensor feedback.
Completed comprehensive ComfortGuard maintenance package on HVAC system. Performed electrical diagnostic testing using clamp meter, measuring amperage readings of 5.56A and 5.18A on system wiring and connections to verify proper electrical draw and component operation. All electrical connections inspected and confirmed secure with proper voltage and current flow within manufacturer specifications.
Completed annual comprehensive maintenance on outdoor HVAC condensing unit. Inspected coil panels which showed significant accumulation of dirt, dust, and debris requiring cleaning. Verified unit operation, checked refrigerant lines and electrical connections, and documented equipment condition with photographic evidence for service records.
