Don't sweat through another night or pile on another blanket. Oshkosh HVAC delivers fast, dependable HVAC repair and replacement for local families, backed by upfront pricing and real results.
When the system quits, you want a company that shows up fast and fixes it for good. Our experienced HVAC technicians cover the whole area with stocked trucks, straight answers, and quality work.
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.
Most air conditioner breakdowns trace back to one failed part: a weak capacitor, a burned contactor, a seized fan motor, or a slow refrigerant leak. We diagnose it with gauges and meters, not guesswork. You get a clear price before any work starts, and if the system is old enough that replacement makes more sense, we'll show you both numbers.
A furnace that won't light on a cold night can't wait until morning. Most no-heat calls come down to a dirty flame sensor, a failed igniter, or a blower motor, and our trucks carry the common parts to fix them on the spot. Every visit includes a safety check of the burners and venting, and you'll know the price before we start.
From the first call to the final airflow check, our experienced team handles every heating and cooling problem your home or business can face.
Warm air, frozen coils, or a unit that won't start, diagnosed and fixed right.
New HVAC systems, sized, sealed, and commissioned the right way.
High-efficiency furnaces sized for your home and vented correctly.
Dust, odors, and weak airflow traced back to the ductwork and fixed.
Gas and electric furnace repairs with combustion and safety checks included.
Honest repair-or-replace advice, and clean changeouts when it's time.
Heat pumps, furnaces, and boilers brought back to steady, even heat.
Seasonal tune-ups that catch small problems before they strand you.
Year-round heating and cooling from one efficient system.
Repairs for any heating or cooling system, diagnosed with real testing instead of guesswork.
Targeted comfort for additions, garages, and rooms the ducts never reached.
New air conditioners sized by load calculation and commissioned properly.
Get a rate over the phone from our expert technicians, fast, professional service.
Call (920) 516-9323HVAC trouble can appear without warning. If you're seeing any of these problems, call us today for expert help.
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-upsA system past 12 to 15 years that needs a repair every season is telling you something. We'll give you the honest math on repair versus replacement.
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 cleaningAdditions and bonus rooms rarely get enough duct capacity. A dedicated ductless head fixes the problem permanently.
Mini-split installationWhen the heat is out in January, hours matter. Our local technicians roll out same-day with stocked trucks, ready to repair on the spot.
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.
You'll get a clear written quote before any work starts, and the price you approve is the price you pay. That's why so many customers call us back.
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.
Oshkosh HVAC has proudly served this community and the surrounding WI towns for over a decade. We understand the local climate and the wear it causes because we live and work here too.
Anyone can bolt in a condenser. Lasting comfort comes from understanding the home and the system together, and that's where our years working in this area pay off, fewer callbacks, faster fixes, and installs that pass inspection without drama.
One call connects you with a nearby technician who can size up the problem and get you a quote.
From the first call to the final airflow check, our method is built to solve the problem completely the first time.
Ring (920) 516-9323 whenever it suits you. We'll talk through the symptoms, tell you if anything needs immediate attention, and lock in a visit time that fits your schedule.
We don't guess. The diagnostic covers the full system and turns into a straightforward recommendation with the cost spelled out up front.
We complete the approved work on the spot whenever possible: quality parts, code-compliant connections, and no shortcuts hidden behind the air handler.
To keep your comfort reliable long-term, we can set up seasonal maintenance that cleans coils, checks the charge, and catches small issues before they strand you in the wrong season.
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 pinpointed, capacitor, motor, refrigerant leak, control board, or the compressor itself. Right away, we complete the repair on the spot whenever parts allow, or quote the replacement with real numbers if the unit is done.
Lasting comfort is the whole point. We verify the repair, note the system's age and condition, and offer a simple seasonal plan that keeps efficiency up, breakdowns down, and miserable nights off your calendar.
"Our restaurant's rooftop unit failed on a Friday with a full weekend of reservations booked. Their team got it running the same day. They clearly understood what downtime costs a Oshkosh business, and they came back the next week to fully service the second unit. They've got all our locations now."
"We put a ductless mini-split in the bonus room over the garage that was always freezing in winter and roasting in summer. They sized it for the actual room instead of guessing, and the install was clean and quick. That room is finally usable year-round."
"When our old furnace was on its last legs, they walked us through converting to a heat pump instead of just quoting a like-for-like swap. Our winter bills dropped noticeably the first season, and we got cooling out of the same equipment. Best decision we made on this house."
We do more than patch the symptom. We give you lasting comfort. Every visit is backed by experienced technicians, quality parts, and a focus on fixing the cause.
We don't send a rookie with a gauge set and a hope. Each technician brings genuine field experience in diagnosis, safe gas and electrical work, and clean installation, the kind of depth that turns a service call into a lasting fix.
HVAC sizing is math, not guesswork, and we show ours. Our team walks you through the sizing and explains every option before you commit.
Our team focuses on keeping systems alive with simple, scheduled care. If you want to avoid the emergency replacement, our seasonal tune-up plans handle the checks that actually extend equipment life. It's that simple. This focus on longevity is why so many homeowners recommend us.
From our home base out to the neighboring towns, our technicians are based close enough to respond fast wherever your home or business sits.
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Read MoreWaiting only makes a failing system worse and the house less livable. Call now and our experienced team can respond fast with upfront pricing.
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