
Watertown Heater Repair
Same-Day Assistance from Local Heating Pros
Your heating system is a lifeline during Wisconsin’s long and chilly winters. A malfunctioning heater is more than just an inconvenience. It can quickly become an emergency that impacts your comfort and safety. Fortunately, you can turn to Carew Heating & AC for comprehensive heater repairs in Watertown, as well as Waukesha, Sun Prairie, Lake Mills, Oconomowoc, and nearby areas.
Since 1996, we have encountered and solved virtually every heating system challenge imaginable. With this extensive experience, you can trust our team to repair your home or business’s heater, whether you have a furnace, heat pump, or another heating system.
Let us know how we can help you today. Call (920) 626-3962 24/7 or reach out online to schedule a service. Financing and payment plans are available to make necessary repairs more accessible.
The Heating Problems We Can Solve
Our experienced technicians are equipped to handle a comprehensive range of heating system issues, including:
- Inadequate heating output – Systems that run constantly but fail to maintain comfortable temperatures
- Unusual noises – Banging, squealing, or rattling sounds that may indicate mechanical issues
- Frequent cycling problems – Systems that turn on and off repeatedly without reaching desired temperatures
- Pilot light and ignition issues – Gas system startup problems that can leave you without heat
- Electrical problems – Heat pump and electric furnace electrical malfunctions that prevent proper operation
- Ductwork issues – Leaks, blockages, and poor insulation that reduce system efficiency and allow air leaks
- Thermostat problems – Calibration issues and faulty thermostats that prevent your system from responding accurately to temperature settings
Signs You Need Heating Repair
Several indicators signal the need for immediate professional heater repair. Give us a call if you notice the following:
- No heat or insufficient warmth
- Strange odors
- Unexplained rises in energy bills
- Uneven heating
- Infrequent or too-frequent cycling
- Grinding, squealing, banging, or rattling noises
Whatever the issue, count on our team to identify its source and deliver a long-lasting fix. The best part is that we complete most repairs in just one visit. This means less time spent layering jackets and a return to comfort in your home or business.
Repair vs. Replacement: Making the Right Decision
If something has gone wrong with your heater, you may wonder whether it is most advantageous to repair or replace it. Below are insights to help you make a smart decision.
Often, choosing repairs is best when:
- Your system is under 10 years old
- Only one component has failed
- Repair costs are reasonable (less than 50% of replacement cost)
- The problem is covered by warranty
On the other hand, a replacement may be best if:
- Your system is 15+ years old
- You're facing major component failures
- Repair costs exceed 50% of a new system's price
- You've had multiple expensive repairs recently
- Your energy bills keep rising despite normal usage
- You want to upgrade to a more efficient, modern system
Need help deciding? With us, you can get an honest, no-pressure assessment of your system's condition. We can walk you through repair costs, your system's expected remaining lifespan, and potential energy savings from newer equipment, so you can make the best decision for your building and budget.
Contact Carew Heating & AC for Reliable Heater Repairs in Watertown
Don't let heating problems leave you in the cold. Our highly trained technicians are ready to restore your comfort with warranty-backed repairs and honest, professional service. Reach out for same-day assistance in emergencies!
Contact Carew Heating & AC online or call (920) 626-3962 for heater repair services from Wisconsin's trusted heating and cooling experts.

Hear From Our Happy Customers
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“Great company. The technicians are courteous and efficient. Matt did a great job and explained everything to me.”Kenneth K.
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“Matt did a great job with my air conditioning cleaning. I recommend signing up for their comfort plan helps keep everything running well and service is on time. Matt does great with tolerance with my dogs; they always want to help.”Dave C.
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“Matt was very pleasant to work with. He arrived on time and was very professional. He answered all my questions and offered some good advice. Definitely will be using Carew again. Thank you.”Rick E.
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“Alex did a great job explaining what he was doing and did the tune-up/yearly maint. in a timely manner. And was very nice.”Christian S.
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“Carew is the best! Our air went out on the hottest day of the year, and they came right away to help us! I am so grateful for their professionalism, quick service, and great prices!!”Jennifer R.
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“Carew installed a new furnace for me. The installation was quick and efficient. Everything went well, and it's running great.”Michael M.
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“Carew Heating & AC Inc has been very helpful in sorting my heating and AC needs in my home that I recently purchased. Rob, the Technician was very polite, informative, and thorough.”Peter R.
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“We had a fantastic experience with Ben and Alex today! They arrived right on time, were incredibly professional, and clearly knew their stuff. It’s not every day you find a team that brings both expertise and a great sense of humor into your home.”Aaron J.
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“I have been a customer of Carew Heating and Air since we moved to Watertown 5 plus years ago. We are always beyond pleased with our service needs. They are experts. I highly recommend Carew! Thank you!”Lee K.