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 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.
Completed warranty service to replace malfunctioning Zone 2 damper and installed vibration reduction pad under transformer to address noise issues. Documented existing wiring configuration and control panel connections before performing replacement. System functioning properly after repairs.
Performed boiler tune-up service and diagnosed clicking noise similar to failing starter. Investigation revealed faulty actuator on the Wilo circulation pump within the hydronic system. Removed and replaced defective actuator, restoring proper operation of the boiler system.
Provided customer education on proper operation of their HVAC system, including humidistat settings and general equipment functions. Performed visual inspection of Carrier furnace unit with PVC venting and associated air handler/ductwork system. Customer recently relocated from California and required orientation to their home comfort equipment for proper seasonal operation.
Performed annual preventative maintenance on furnace as part of prepaid service plan (1/2 of complete HVAC service). Replaced dirty air filter, inspected blower wheel assembly, and verified proper operation of all components. Water heater was also visually inspected with no immediate concerns noted.
Responded to no heat complaint for residence with Coleman furnace showing significant age. Diagnosed faulty thermostat as source of heating failure. Ambient temperature at arrival was 49.1°F. Replaced thermostat and verified proper system operation, restoring heat to home.
Responded to customer concern regarding exposed exhaust pipe on Armstrong Air furnace. Upon inspection, found PVC exhaust pipe with unsealed hole allowing potential exhaust gas infiltration into home. Properly sealed the hole using RTV sealant and installed blue plug to ensure safe system operation and prevent carbon monoxide hazard.
Responded to no heat complaint for a 2019 furnace system. Diagnosed and cleaned dirty flame sensor causing system to fail activating heat until temperature dropped to 66-67°F. Performed system check after cleaning to verify proper operation and heat production at correct thermostat settings.
Responded to service call for customer-reported beeping sound from recently installed furnace. Diagnosed error code 99 and identified plugged air filter as source of noise issue. Customer declined filter replacement service and will handle filter maintenance independently.
Diagnosed and resolved multiple system issues including a mechanically binding zone damper which was reoriented to restore proper function, though it shows signs of imminent failure and may need replacement pending warranty verification. Identified unsecured transformer as source of reverberating hum, which requires rubber pad installation and proper anchoring to eliminate vibration. Corrected thermostat programming error that was causing system to activate two hours before intended start time, adjusting settings to begin heating at wake time rather than reaching setpoint by wake time.
Diagnosed no heat complaint on aging furnace (10+ years). Visual inspection revealed blower assembly with significant dust accumulation and shaft corrosion. Determined blower motor had seized due to excessive wear and contamination, preventing proper airflow. Replaced blower assembly to restore heating function.
Responded to service call for 10+ year old furnace displaying error codes E227 and E229, which had gone into lockout mode. Diagnostic inspection revealed faulty pressure switch causing system failure. Replaced defective pressure switch and reset system, restoring normal furnace operation. Advised customer to contact son with any follow-up questions regarding pressure switch functionality.
Responded to service call regarding non-functional thermostat. Upon inspection, determined the existing thermostat was outdated and required replacement. Verified proper operation of the furnace system in the mechanical room after service was completed.
Diagnosed and serviced furnace that was failing to heat home intermittently. Upon inspection, identified dirty flame sensor as root cause of system failure. Cleaned flame sensor to restore proper flame detection and system operation. Performed preventative maintenance to ensure reliable heating performance throughout winter season.