Whether it's a sudden breakdown or a planned efficiency upgrade, Green Bay HVAC has you covered with expert diagnosis, quality installs, and friendly, on-time service.
A broken AC or furnace doesn't wait, and neither should your service company. With technicians based around the Green Bay area, we provide fast, reliable service and hands-on care from experienced pros who know the climate and housing stock of our region.
Whatever your system needs, a quick fix, a smart upgrade, or a full replacement, our team covers it start to finish with workmanship that lasts.
Warm air, frozen coils, or a unit that won't start, diagnosed and fixed right.
Aging system? We'll show you the numbers before you decide.
No heat tonight? We find the failed part and get the furnace running.
Seasonal tune-ups that catch small problems before they strand you.
No-heat calls handled fast, with a safety check on every visit.
Repairs for any heating or cooling system, diagnosed with real testing instead of guesswork.
High-efficiency furnaces sized for your home and vented correctly.
Heat pumps sized for your climate, with backup heat set up correctly.
Full system installs with balanced airflow and clean, code-compliant work.
Efficient AC systems, correctly sized and installed to last.
Dust, odors, and weak airflow traced back to the ductwork and fixed.
Quiet, efficient ductless systems with clean line-set installs.
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Most of the calls we answer come down to two things: a house that won't cool, or a house that won't heat. Here's how we handle both.
When your AC hums but won't cool, blows warm air, or keeps tripping the breaker, the fix is usually a single worn component. We test the system, find it, and replace it, often the same day. Pricing is upfront, and we'll tell you honestly whether a repair is worth it on an older unit.
Most furnace breakdowns come from a handful of parts: flame sensors, igniters, inducer motors, and control boards. We find the one that failed and fix it, usually in a single visit. We also check for the problems that matter for safety, like a cracked heat exchanger, and give you an upfront price before any work begins.
If something seems off with your comfort system, it usually comes down to one of these. Here are the problems we get called about most across Green Bay, and how we put a stop to each.
Low refrigerant, a failed compressor start, or a dirty condenser can all masquerade as the same symptom. Real diagnosis beats parts-swapping every time.
AC repairIf the blower runs but the air never warms, or the unit clicks without lighting, the failure is diagnosable in minutes with the right tools.
Furnace repairA system that runs constantly but never satisfies the thermostat is burning money. Seasonal maintenance restores the efficiency you paid for.
Maintenance & tune-upsWhen repair bills start stacking up, a modern high-efficiency system often costs less per month than keeping the old one alive.
System replacementIf some rooms get dusty faster than others, leaky or dirty duct runs are the likely cause. We inspect, clean, and seal what we find.
Air duct cleaningMini-splits deliver precise heating and cooling to a single zone, run whisper-quiet, and sip electricity compared to window units.
Mini-split installationMost repair calls are diagnosed and fixed in a single visit because we stock the common parts, capacitors, contactors, igniters, motors, on every truck.
We don't cut corners. Our team is experienced, background-checked, and fluent in every major brand, from a 20-year-old gas furnace to the newest inverter-driven heat pump.
Plenty of companies sell a new system the moment yours hiccups. We diagnose first, explain what actually failed, and only recommend replacement when the math genuinely favors it.
We don't just swap the failed part. We check what killed it, airflow restriction, voltage, refrigerant charge, drainage, and correct that too, so the same failure doesn't repeat next season.
Year after year, Green Bay HVAC has been the team local families call when the AC quits or the furnace goes cold. We've serviced systems in nearly every neighborhood around town, and that track record shapes how we approach each job, from the first diagnostic to the final test.
Every technician on our team is experienced, background-checked, and trained across every major brand and fuel type. We tailor every recommendation around the system you have and the way you use it. When the AC quits, you want a team that knows your neighborhood, not a national call center hundreds of miles away.
Call a local HVAC expert. Upfront pricing, no obligation.
From the first call to the final airflow check, our method is built to solve the problem completely the first time.
Pick up the phone and dial (920) 516-9298. A few quick questions later, your appointment is on the calendar, frequently the same day.
A technician evaluates the unit on-site, confirms exactly what's wrong, and lays out a plan and a price before any work begins.
Most repairs finish the same visit, our trucks carry the common parts. Replacements are installed to code with proper sizing, sealed connections, and clean workmanship.
Before we leave, the system is tested end to end and your questions are answered. Seasonal tune-up plans are available to protect the investment.
Upfront pricing · Same-day service available
Speed matters when the temperature is climbing or dropping. This is the sequence our team runs through, from the moment your call comes in to the moment your system is running again.
The first call is where it all starts. Someone on our team picks up, works out how urgent the situation is, and schedules the soonest visit available, while telling you the few simple things to do in the meantime.
Your technician shows up ready to work, not just to look. The common failure parts ride on every truck, so the visit moves straight from diagnosis into repair.
The fault is identified, capacitor, motor, refrigerant leak, control board, or the compressor itself. Right away, we fix it there and then whenever parts allow, or lay out honest replacement options if the unit is done.
We make sure temperatures stay steady and stand behind the work. This is also when we recommend a maintenance schedule to catch the next problem while it's still small, which is the cheapest comfort insurance there is.
"Years of dust, pet hair, and who knows what else came out of our ducts. After the cleaning, rooms that never got air finally do, and my wife's morning allergies have all but disappeared. They showed us before-and-after photos of everything they pulled out."
"Our AC died on the hottest day of the year and a tech was out the same afternoon. He found a blown capacitor, swapped it from stock on the truck, and had cold air blowing before dinner. Fair price, no drama, and he checked the rest of the system while he was there."
"Our restaurant's rooftop unit failed on a Friday with a full weekend of reservations booked. Their team had us cooling again before the dinner rush. They clearly understood what downtime costs a Green Bay business, and they came back the next week to fully service the second unit. They've got all our locations now."
We do more than patch the symptom. We give you lasting comfort. Every visit is backed by our experience, honest recommendations, and thorough work you can count on.
Real experience is a requirement, not a bonus. It means every technician understands sizing, airflow, and combustion, works clean and safe, and stands behind every repair at a level most companies don't reach.
We match every replacement to your home's real heating and cooling load rather than defaulting to whatever's on the truck. Installations get done to code: sealed duct connections, correct line sets, proper condensate handling, clean electrical work. Most installs are completed in a single day with minimal disruption.
Our team believes in keeping systems alive with inexpensive seasonal care. If you want to avoid the emergency replacement, our spring and fall maintenance visits clean coils, verify the charge, and test every safety control. It's that simple. This focus on longevity is why so many homeowners recommend us.
We cover every community listed below with same-day and scheduled HVAC service.
Complete HVAC care in Kenosha. Repairs, installations, duct cleaning, and seasonal tune-ups.
Learn moreKeeping Eau Claire comfortable in every season. Diagnose, repair, replace, done right the first time.
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Learn moreReliable comfort solutions for Appleton homeowners. From quick repairs to full system replacements and upgrades.
Learn moreTrusted heating and cooling service for Milwaukee homes and businesses. Fast response when the AC or furnace quits.
View detailsMadison's go-to team for AC repair, furnace service, heat pumps, and mini-splits. Same-day appointments available.
See service areaPractical advice to keep your home comfortable and your repair bills low.
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