24-Hour Heating & Air Conditioning Repair in Wausau
For over a century, Frasier’s Plumbing, Heating & Cooling has been there for our clients throughout Northern Wisconsin. Whether you need a quick AC maintenance check or have a middle-of-the-night furnace repair emergency, our licensed and bonded professionals are here to help homeowners with their HVAC needs with same-day appointments.
Through the decades we have been in business, a lot has changed since we did our first heating repair job in 1918. However, one thing has remained the same: exceptional customer service. Frasier’s has earned many awards and accolades, but no achievement is as gratifying as a satisfied customer who awards us with repeat business. One way we earn repeat customers is our competitive, upfront pricing with no pesky, hidden fees. Our friendly technicians will explain your HVAC repair or maintenance needs in plain English. While giving ample guidance, we work with your budget and only perform services you specifically need or request.

Call us if you need any of the following heating or air conditioning services in Wausau:
- HVAC installation: We install only the best products, providing superior performance you’d expect with money-saving energy efficiency.
- HVAC repair: If you need a same-day service for furnace repair or an indoor air quality check, we can help you.
- HVAC service: We keep your HVAC systems running smoothly.
- Air quality solutions: Breathe easier with our air quality testing, along with our duct cleaning and air purification services.
Need heating and cooling in Wausau, WI? Our HVAC team is standing by to take your call. Contact us for speedy service.
Wausau AC Repair — Emergency Air Conditioning Repair Available!
When you need prompt, reliable air conditioning repair in Wausau, make your first call to Frasier’s. Our team can handle all of your AC repair, replacement, and maintenance needs to keep you cool during the warm months. We are NATE certified for your peace of mind and are even available 24/7 to offer emergency AC repairs. Call today to schedule a service!
Furnace Repair in Wausau
A working heater is absolutely critical for comfort and safety during the freezing Wisconsin winters. If your furnace or other heater isn’t doing its job, be sure to call Frasier’s to schedule your appointment for furnace repair in Wausau. From mechanical repairs to dirty furnace filter replacements, we’ll get your heater working in no time.
Our Wausau furnace repair team can handle all sorts of common heating issues, including:
- Pilot light won’t stay lit: If you have a gas furnace, a malfunctioning pilot light means that your furnace won’t work. Usually, pilot light issues signal a problem with the thermocouple.
- Furnace smells bad: Is your gas furnace emitting a rotten egg smell? Are you smelling burning plastic or ozone? Any odd smell coming from your furnace should be treated as as emergency. Turn off your system and call for furnace repairs immediately.
- Furnace is blowing cold air: If your furnace turns on but isn’t blowing warm air, you may have a dirty air filter or faulty burners. You should also check your thermostat to make sure it is set to “AUTO” instead of “ON.”
- Furnace is making unusual sounds: Do you hear a booming, banging, rumbling, clicking, buzzing, whistling, or any other weird noise coming from your furnace? Strange sounds have a number of causes, but all should be investigated by a furnace repair professional.
- There’s rust on your furnace: Rust could indicate combustion gas/exhaust problems. If you have a gas furnace, this evidence of the presence of excess carbon monoxide poses a safety hazard, so call for repairs as soon as possible.
To keep your heater in good condition and extend its lifespan, be sure to schedule a furnace maintenance appointment at least annually. Periodic maintenance is a simple way to get the most out of your heater and protect your investment. Regular maintenance can also reduce the chances that your heater will completely break down when you need it most.
Heating & Air Conditioning Replacements & New Installations
At Frasier’s, we always strive to repair HVAC systems when it makes sense to do so. However, if your older system is beyond repair or if it would simply make more financial sense to forego repairs in favor of a replacement, we’ll guide you through your options for selecting a new system. We install air conditioners and furnaces from trusted brands and happily offer financing options to help make your purchase more affordable!
Give Us a Call for Your HVAC Needs!
If you need plumbing, heating or cooling installation, repairs or maintenance in Northern Wisconsin, get in touch with our friendly, professional technicians today! We always price our services based on the job you need — not by the hour, so you know up-front what you will pay before we even start work. We offer total customer satisfaction and stand behind the quality of our work with fantastic warranties.
If you need HVAC service in Wausau, contact us online or call today!
Recent Jobs and Reviews in Wausau, WI
Job Locations and Reviews
Performed diagnostic service on 20+ year old furnace with no heat issue. Found dirty flame sensor, igniter, and burners causing ignition failure; also identified inducer drawing high current and capacitors out of specification range. Completed thorough cleaning of flame sensor, burners, and igniter which restored proper heating function; provided estimates for replacement of inducer motor and capacitors.
Responded to no-heat call for a 10+ year old system. Diagnostic testing revealed a plugged intake pipe on the roof which could not be cleared. Combustion analysis performed with digital analyzer showing O2 at 20.9%, CO at 46F, and CO2 at 5.7%, confirming ventilation issues that prevented proper system operation.
Responded to no heat complaint on 15+ year old natural gas furnace. Diagnosed blocked air intake causing improper combustion; cleared obstruction and verified proper flame pattern. Performed annual maintenance service to ensure continued safe operation.
Responded to no heat complaint for a 12-year-old furnace where home temperature had dropped to 62°F. Diagnosed multiple issues: fresh air intake obstructed with leaf debris, flame sensor with dead spots, and inducer motor drawing excessive current. Performed immediate repairs including clearing intake obstruction and cleaning flame sensor, which restored heat function. Customer approved estimate for replacement of flame sensor and inducer motor.
Diagnosed no heat condition on 13-year-old furnace with indoor temperature at 53°F. Identified failed flame sensor with significant dead spot and malfunctioning zone dampers. Replaced flame sensor and restored heating function. Provided customer with estimate for replacement of two sticking zone dampers. Replaced air filter during service.
Responded to no heat call for system under 10 years old. Diagnosed failed inducer motor causing system lockout. Replaced inducer assembly and cleared debris from housing to restore proper furnace operation.
Performed annual furnace maintenance including combustion analysis with readings of 9.1% O2, 10 PPM CO, and 6.7% CO2. Inspected blower assembly which showed normal dust accumulation. Replaced dirty air filter to restore proper airflow and system efficiency.
Responded to callback for gas odor near recently installed boiler. Upon inspection, identified a gap in the RTV sealant causing minor gas leak. Properly sealed the gap with appropriate RTV material to resolve the issue and ensure safe operation of the heating system.
Successfully diagnosed and replaced faulty flame sensor and igniter on customer's furnace system as per approved estimate. Verified proper ignition sequence with visual confirmation of burner operation, restoring normal heating functionality.
Replaced seized and rusted inducer draft motor on Bryant furnace system. Post-installation testing with digital analyzer confirmed proper combustion parameters and safe operation, with temperature readings at 104.1°F. Restoration of system functionality and safety verified through comprehensive diagnostic assessment.
Diagnosed and corrected zone valve malfunction due to improper wiring configuration. Rewired zone valve to restore proper operation, while noting significant power draw on transformer supporting 5 zones. Provided customer with recommendations for zone board or transformer upgrades to improve system performance and reliability.
Performed annual inspection on rental property furnace, observing notable corrosion on burner assembly, flame sensor, and igniter. Documented evidence of deterioration with significant rust formation around burner ports and mounting brackets. Completed evaluation of system components and provided customer with estimates for recommended repairs.
Responded to no heat call for aging natural gas furnace. Diagnosed dead batteries in thermostat and observed significant condensation on heat exchanger components. Upon inspection of the 10+ year old unit, determined furnace requires replacement due to age and condition.
Performed annual maintenance inspection on natural gas furnace. Conducted combustion analysis with readings of O2 (10.7-11.3%), CO (8-24ppm), CO2 (4.0-5.8%), and stack temperature (112.1-142.7°F), confirming unit is operating within acceptable parameters. Provided preventive maintenance recommendations to customer.
Performed diagnostic evaluation on 5-7 year old rooftop heating unit experiencing excessive gas consumption issues. Utilized Klein Tools ET180 Differential Manometer to measure pressure readings, recording 1.48 inH₂O. Established service relationship for all three store locations.
Diagnosed no heat complaint on 10+ year old garage furnace serving multiple living areas. Found seized inducer motor as root cause. Successfully replaced inducer motor and restored heat function. Due to age and condition of unit, recommended full furnace replacement.
Responded to no-heat call for 4-year-old furnace. Diagnosed water damage that caused control board failure. Replaced control board, wire harness, and water sensors to restore system operation.
Responded to no-heat call for a 2005 American Standard furnace located in upstairs unit of duplex. Diagnosed dirty flame sensor as root cause of heating failure. Cleaned flame sensor to restore proper flame detection and system operation; unit now functioning correctly.
Inspected attic ventilation system and identified significant damage to PVC vent pipe joint with visible cracking, separation, and failed sealant. Documented moisture intrusion and potential mold accumulation at connection point where vent fan is leaking. Unable to complete repair during initial visit due to insufficient ladder height; scheduled return visit with appropriate extension ladder to access roof and complete necessary repairs.
Completed annual prepaid maintenance on furnace under service plan. Found gas manifold pressure at 3.7"wg, exceeding specifications; adjusted down to 3.5"wg per manufacturer requirements. Removed stripped burner chamber access screw by grinding head, completed inspection, and replaced with new fastener upon completion.