At Randazzo Heating, Cooling, and Electrical, we believe your home should be more than just a place to sleep—it should be your comfort zone, your retreat, and your peace of mind. That’s why we proudly serve the friendly and tight-knit community of South Lyon, MI with reliable heating, cooling, electrical, and water heater services designed to keep life running smoothly, day in and day out.
We know how busy life in South Lyon can be. Between work, family, and community events, the last thing you need is a surprise breakdown that throws off your whole day. Our job is to take the stress off your shoulders, so you can focus on what matters most. To experience the Randazzo difference, call 586-336-1111 or contact us online!
South Lyon: A Community with Heart and History
South Lyon, Michigan is a small city that feels like home from the moment you arrive. It’s a place where families gather for the annual Pumpkinfest, kids play soccer in Volunteer Park, and neighbors stop to chat at the local farmers market. Whether you’re exploring the Witch’s Hat Depot Museum, enjoying the scenic South Lyon Rail Trail, or grabbing a bite downtown, there’s a warmth here that makes this community special.
We’re proud to serve the people of South Lyon, helping them keep their homes cozy, efficient, and safe so they can keep making memories right where they are.
Electrical Services That Power Your South Lyon Life
Your home’s electrical system is the quiet workhorse behind every moment—morning coffee, cozy movie nights, and everything in between. Our team of licensed electricians in South Lyon is ready to help with:
- Panel Upgrades & Rewiring: Tired of tripped breakers or flickering lights? We update outdated panels and wiring so your home is safer and ready for today’s power needs.
- Lighting Design & Installation: From brightening up your kitchen to adding landscape lighting outdoors, we help bring your vision to life.
- Outlet, Switch & Ceiling Fan Installation: Little upgrades make a big difference when it comes to comfort and convenience. We handle it all.
- EV Charger Installation: Charging your electric vehicle at home has never been easier. We install reliable, fast-charging solutions right where you need them.
- Standby Generator Installation: Never be caught off guard during a power outage. Our generators keep your essential systems up and running.
- Whole-Home Surge Protection: Protect your electronics, appliances, and smart devices from sudden power surges that can cause expensive damage.
Heating Services to Keep South Lyon Cozy
Let’s be real, Michigan winters don’t mess around. When the temperatures drop, you want to walk into a home that feels warm, welcoming, and safe. That’s where we come in:
- Furnace Repair & Replacement: Whether your furnace is blowing cold air or not blowing at all, we’ll fix it fast or help you choose a new one that keeps your home toasty without draining your wallet.
- South Lyon Heat Pump Services: Heat pumps are a great option for energy-conscious homeowners looking for both heating and cooling. We install and maintain these versatile systems.
- Smart Thermostat Installation: Save energy without giving up comfort. We set up smart thermostats that let you control your home’s temperature right from your phone.
Cool and Comfortable: South Lyon Air Conditioning Services
Summers in South Lyon can bring more than just sunshine; they can bring sweltering heat that makes your home feel anything but comfortable. That’s where our cooling services come in. We’re here to help you stay cool, relaxed, and comfortable when the temperatures start to rise:
- AC Repair & Maintenance: From weak airflow to unusual noises, we fix issues quickly so your home stays cool and comfortable.
- New AC Installation: We help you pick the perfect air conditioner for your home and budget, then install it with precision.
- Ductless Mini-Split Systems: Want cooling in just one room or area? Ductless systems give you targeted comfort without costly renovations.
Hot Water You Can Count On: Water Heater Services

Picture this: it’s Monday morning, and you’re halfway through a shower when the hot water cuts out. We’ve been there, and we’re here to make sure you never have to deal with that again:
- Water Heater Repairs & Installations: Whether your system needs a simple fix or it’s time for a full replacement, we’ve got you covered.
- Energy-Efficient Water Heater Upgrades: We install modern water heaters that use less energy without sacrificing comfort.
Why South Lyon Homeowners Trust Randazzo
We know there are plenty of companies out there offering home services, but here’s what makes Randazzo different for South Lyon families:
- Friendly, Skilled Technicians: Our team isn’t just trained—they’re passionate about what they do. Every job is done with care, attention, and a friendly face.
- Upfront, Honest Pricing: We keep things simple and transparent. No surprises, no stress.
- Focused on Real Comfort: We listen. We take the time to understand your needs and tailor solutions that actually work for your lifestyle.
- Giving Back: We’re proud supporters of local schools, charities, and community events because we believe in investing in the neighborhoods we serve.
Let’s Make Your South Lyon Home Even Better
At Randazzo Heating, Cooling, and Electrical, we’re here to help you take care of your home so you can enjoy the best of South Lyon living. Whether you need a quick repair, seasonal maintenance, or a full system upgrade, we’re just a phone call away.
Contact us today online or call 586-336-1111 to schedule your service. We’re ready to help you keep your home running smoothly, comfortably, and worry-free.
Recent Jobs and Reviews in South Lyon, MI
Job Locations and Reviews
Completed annual heating maintenance on two HVAC units, performing comprehensive inspections of all internal components, blower assemblies, electrical systems, and control boards. Replaced air filters on both units and documented rust formation observed inside furnace cabinets for monitoring. Verified proper operation of all mechanical and electrical components, including gas valves, motors, wiring connections, and circuit boards to ensure safe and efficient system performance.
Completed scheduled Air Care Maintenance inspection on residential outdoor condensing unit. Performed comprehensive system evaluation and replaced defective GFCI outlet at no charge to ensure proper electrical protection. Unit operational and condenser coils inspected; documentation photos captured showing equipment condition and installation site.
# HVAC Maintenance - ACM Completed annual cooling maintenance on outdoor condenser unit. Performed comprehensive inspection of condenser coil assembly, which showed significant accumulation of dirt, dust, and debris between fins requiring attention. Coil fins were intact without bending or damage. Cleaned condenser coils to restore proper heat transfer efficiency and airflow. Replaced air filter and evaporator pad as scheduled maintenance items. Verified unit operation and proper drainage. All components functioning within normal parameters upon completion.
Replaced failed blower motor and control module on Lennox furnace system. Performed complete AC and furnace maintenance including comprehensive system inspection, cleaning, and testing of all components. Rebuilt condensate drain line configuration to separate humidifier drain from AC drain line, improving serviceability and preventing future drainage issues. All systems tested and operating within manufacturer specifications upon completion.
Completed annual cooling maintenance on rooftop zone unit. Performed system diagnostics including temperature differential measurements showing 23°F across coil and electrical readings of 633V, documenting proper operational parameters. All components inspected and system operating within manufacturer specifications.
Completed first of two annual cooling maintenance visits on residential air conditioning system. Performed comprehensive inspection of outdoor condensing unit, including visual assessment of cabinet condition, fan assembly, and mounting pad stability. Checked refrigerant levels, cleaned condenser coils, and verified proper airflow through louver vents. Inspected electrical connections, tested capacitor function, and confirmed motor operation. Unit found to be operating within normal parameters with no immediate service needs identified. All routine maintenance tasks completed per manufacturer specifications.
Completed routine maintenance on residential air conditioning system. Replaced air filter and evaporator pad as needed, inspected outdoor condenser unit for proper operation, and verified all components functioning correctly.
Completed scheduled preventative maintenance on residential air conditioning system. Inspected outdoor condenser unit, noting significant dirt and debris accumulation on exterior panels requiring cleaning attention. Examined indoor evaporator coil assembly, drain pan, condensate drain lines with PVC trap assembly, and flexible coupling connections. Replaced air filter and evaporator pad as part of routine maintenance protocol to ensure optimal system performance and efficiency.
Completed complimentary annual furnace maintenance and tune-up on gas heating system under membership agreement. Performed comprehensive inspection of all internal components including gas valve assembly, blower motor, electrical connections, and control board. Verified proper operation of all mechanical and electrical systems, checked wiring connections and routing throughout unit, and documented equipment condition with photographs. All components found to be functioning within normal parameters with no issues identified or repairs required at this time.
Completed annual cooling maintenance on residential HVAC system. Performed comprehensive inspection of outdoor condensing unit, replaced air filter and evaporative cooler pad as scheduled. Unit operating within normal parameters with no deficiencies noted. Equipment secured and site left clean.
Conducted in-home estimate for replacement of 20+ year old Carrier air conditioning system. Assessed existing HVAC ductwork showing significant deterioration with flaking and peeling of outer metallic coating, documented duct dimensions, and evaluated flexible ductwork connections in mechanical space. Inspected electrical panel with Homeline breakers to verify adequate electrical capacity for new system installation, noting current panel configuration and recent inspection approval dated February 2026. Photographed equipment conditions and electrical infrastructure to provide comprehensive replacement recommendations for system upgrade scheduled within the next month.
Completed scheduled air handler maintenance inspection on residential HVAC system. Accessed unit, performed visual inspection of internal components including electrical connections and mechanical systems, and verified proper operation of PVC condensate drainage lines. Customer advised that evaporator pads require replacement for optimal system performance.
Provided comprehensive estimate for complete HVAC system replacement in basement installation, including furnace and air conditioning unit under BOGO promotion. Assessed existing 1991 equipment currently operational but at end of serviceable life, documented existing ductwork configuration including large main trunk line with insulated branches and flexible connections, and evaluated installation requirements for new high-efficiency system in existing basement mechanical space.
Completed scheduled maintenance on Bryant furnace and air conditioning system. Performed comprehensive inspection of heating equipment, verified thermostat settings and programming, checked all safety controls and operational parameters. System tested and found operating within manufacturer specifications with no deficiencies noted.
Completed routine Air Care Cooling maintenance service on HVAC system. Replaced heavily soiled 18x20x1 MERV-rated air filter showing significant dust and allergen accumulation with new filter to restore proper airflow and indoor air quality. Discovered evaporator coil experiencing severe icing condition with surface temperature reading 23°F, indicating potential refrigerant charge issue, restricted airflow, or low ambient temperature operation requiring further diagnostic evaluation and corrective action.
Completed comprehensive ComfortGuard Maintenance visit on HVAC system, performing thorough inspection of all internal components including blower motor assembly, electrical connections, control board, and condensate drainage system. All wiring harnesses, refrigerant lines, and PVC drain lines with mounting hardware were examined and found to be in proper operating condition. System components verified operational with no deficiencies noted during this routine maintenance service.
Performed comprehensive annual tune-up on 1-year-old forced air furnace system. Conducted thorough inspection of all major components including heat exchanger, burner assembly, gas valve, blower motor, control board, and electrical connections. Verified proper operation of ignition system, flame sensor, and safety controls. Cleaned burners, inspected flue piping and condensate drain system, checked all wiring harnesses and connections for secure mounting, and confirmed system cycling and airflow performance. All components operating within manufacturer specifications with no deficiencies noted. System returned to normal operation with proper heating functionality confirmed.
Completed complimentary spring AC tune-up maintenance as part of active membership plan. Performed comprehensive system inspection on residential air conditioning unit including filter examination and replacement. Removed deteriorated outdoor condenser enclosure panels showing significant weathering, UV damage, and material breakdown along edges and fastening points. Panels exhibited moisture staining and structural degradation from extended outdoor exposure. Documented equipment condition with photographs for service records. System operational upon completion of scheduled preventive maintenance visit.
# HVAC Maintenance - AHM Service Report Performed comprehensive annual heating maintenance on residential gas furnace air handler system. Conducted thorough inspection of all mechanical, electrical, and safety components with cabinet access panels removed for complete system evaluation. Inspected blower motor assembly and verified proper operation of the cylindrical blower housing in lower compartment. Examined all electrical connections including control board wiring harnesses with red, blue, yellow, orange, brown, and pink wire bundles. Verified secure connections and proper routing throughout upper and lower compartments. Inspected green PCB control board for signs of wear, damage, or component failure—found to be in operational condition. Evaluated gas valve assembly and associated ignition components including white ignition module mounted in upper section. Inspected black curved gas piping and metal mounting brackets for secure installation and proper seating. Examined gray PV
Performed routine AHC maintenance on dual outdoor condenser units. Inspected cooling coils/fins which showed normal condition with minimal dust accumulation. Units displayed proper mounting on pads with adequate clearance and exhibited normal weathering but no operational deficiencies or damage requiring repair.
