Green Bay HVAC Repair, Installation & Maintenance
When you need a reliable heating and cooling company in Green Bay, Janesville HVAC is the name to call. We've been keeping local homes and businesses comfortable through every season, building our reputation one satisfied neighbor at a time. Our technicians are local, not dispatched from across the state, which means faster response times and a real understanding of the climate patterns, housing stock, and ductwork quirks that shape how HVAC systems here perform and fail.
From a single no-cool emergency to complete system replacements, ductless mini-split installations, and seasonal maintenance programs, our team takes on every type of residential and commercial heating and cooling need. We offer fast service and give you upfront pricing before any work begins, no hidden fees, ever. Our trucks are stocked with the parts that fail most, capacitors, contactors, igniters, flame sensors, blower motors, and thermostats, so most repairs are finished in a single visit.
Whether your air conditioner is blowing warm air, your furnace is clicking but never lighting, or you're simply planning ahead for a system past its prime, one call to (920) 516-9404 gets a skilled local technician headed your way with everything needed to restore your comfort the same day whenever possible.

Complete Heating & Cooling Services for Green Bay Properties
Whether you own a condo, a rental property, or a commercial space in town, we have the know-how and equipment to handle every heating and cooling need. Our technicians bring years of hands-on experience with central air conditioners, gas and electric furnaces, heat pumps, and ductless mini-splits throughout the area, and we pay close attention to the climate patterns, housing stock, and local code requirements that shape how systems perform here.
On the residential side, we handle everything from quick fixes, like a failed capacitor, a burned contactor, a dirty flame sensor, or a seized blower motor, to refrigerant leak repair, complete system replacements, and ductless additions. Every new system we install is sized with a proper load calculation instead of a rule of thumb, so you get even temperatures and sensible utility bills instead of a unit that short-cycles itself to an early death. Our seasonal tune-ups clean coils, verify refrigerant charge, test safety controls, and check static pressure, still the most reliable way to extend equipment life.
Local businesses receive the same care. An overheated storefront or a drafty office drives customers and staff away, so our commercial crews focus on getting to the cause quickly and keep high-failure parts on board for rooftop units, split systems, and ventilation equipment. Property managers, restaurant owners, and retailers can count on us to schedule work around their operating hours whenever possible.
Fast HVAC Response in Green Bay
Call us about a problem and a real person answers, not a phone tree. The majority of calls are scheduled the same day or the next, and urgent calls, an AC that quits in a heat wave or a furnace that fails on a freezing night, jump to the top of the schedule. We keep the process simple so nobody is left waiting for a callback.
Common emergencies we handle include air conditioners blowing warm air, outdoor units that hum but won't start, furnaces that ignite and then shut down, breakers that trip every time the system runs, iced-over evaporator coils, clogged condensate drains backing up into the furnace cabinet, and thermostats that have stopped responding. Our trucks carry the capacitors, contactors, igniters, flame sensors, universal control boards, and fittings needed to complete most repairs in a single visit. We provide upfront pricing every time, so you know exactly what the work will cost before we begin.
Two situations call for quick action from you before a technician arrives. The first is an iced-over air conditioner: turn the system off at the thermostat and set the fan to "on" so the moving air thaws the coil, because running it frozen can overflow the drain pan and damage the compressor. The second is a furnace that short-cycles or gives off a burning smell. Shut it down at the switch and give us a call. Those few minutes can prevent a far bigger repair.
How Green Bay Homeowners Can Extend HVAC Life
Many mid-season breakdowns trace back to maintenance that never happened, and the habits that prevent them are simple. Change your filter every one to three months, clear vegetation at least two feet from the outdoor condenser, and rinse the condenser coil once a year in spring. Then book a professional tune-up each spring and fall, one for cooling and one for heating, so our technicians can catch small problems while they're still cheap to fix.
The age of your equipment plays a big role. With regular service, central air usually runs 12 to 15 years, a furnace 15 to 20, and a heat pump 10 to 15. Once a system passes that range and starts showing warning signs, like rising energy bills, rooms that never reach the setpoint, or repeat service calls, it's time to plan a replacement. Replacing on your own schedule is cheaper and causes far less stress than scrambling for a new system during the first heat wave of summer.
If comfort problems do show up, acting quickly keeps them small. A weak capacitor is a quick fix. The same capacitor ignored for a season can take the compressor with it and turn a minor repair into a full system replacement. It's smart to keep our number saved on your phone so you can reach us at the first sign of trouble. Early intervention saves time, money, and miserable nights.
Common HVAC Problems in Green Bay
Most local HVAC failures give warning signs before they happen. A breaker that trips every few days, a condenser that hums louder each month, rooms drifting further from the thermostat setting, energy bills creeping up with nothing else changed. Those are early signs of failing capacitors, refrigerant leaks, dirty coils, and duct problems, and caught early they're an affordable repair. Left alone, they take out compressors and heat exchangers, the two most expensive parts in the system. We find the root cause instead of treating symptoms, so small problems stay small.
Your Go-To Heating & Air Team
We know this area inside and out, including the climate patterns and housing stock that affect local comfort systems. From iced-over coils to furnaces flashing error codes, our technicians are equipped to handle it all.
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Call now for fast, reliable HVAC service across the area and surrounding communities.
Get Help: (920) 516-9404What We Offer
From single-family homes to commercial properties, our team covers every comfort need in the area, including:
Let Us Handle Your HVAC System
One call connects you with our team and a clear plan for your comfort issue.
Call (920) 516-9404 NowWhy Green Bay Homeowners Trust Us
Choosing an HVAC company comes down to trust, and trust is earned on the job. Janesville HVAC earns it by recommending the $150 repair when that's what the system needs, by sizing replacements with real load calculations instead of guesswork, and by standing behind every repair after the truck pulls away. Same-day service is available for most calls, and each visit wraps up with the system tested and your questions answered.
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Also Serving Nearby Communities
Beyond this community, we cover the surrounding towns with the same fast service.