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Where Comfort Meets Quality

We have you covered with our expert furnace services.


Delivering More Than Heat:


Safe & Comfortable

Our team of NATE-certified technicians ensures the highest standard of workmanship during furnace installation, repair, and maintenance. This guarantees your system will operate efficiently and reliably giving you peace of mind and reduced stress.


Get Exactly What You Need

We tailor our furnace services to your unique needs. From replacement and installation to maintenance and repairs, our skilled technicians provide customized solutions for your comfort.

Heat 24/7

Regain Heat 24/7, Especially in Emergencies

Emergency heating problems don’t wait for a convenient time. We’re available around the clock providing 24/7 service, ensuring you always have the warmth you need.

Here's What Our Satisfied Customers Have to Say

Sarah – Oconomowoc, WI

No one likes when the heat goes out but knowing that one call would get it fixed is great!! Jeremy came out with in the hour of calling. He was professional and got everything done with a smile. Thanks for the great work.

Greg – Waukesha, WI

New installation yesterday. So far so good! Hats off to installation team of Mike, Joey, Faith, Michael, and Jason. Very polite and professional. Took the time to do the job right.

Linda – Milwaukee, WI

I have always had wonderful experiences and service from the technicians that come out. The staff in the office are pleasant and polite and they get back to you quickly and responsively. Great company to work with.

Larry – Mount Pleasant, WI

They delivered what they promised. They were responsive, very friendly and knowledgeable. Would highly recommend them to anyone.

Jeremy – Milwaukee, WI

Kettle Moraine is a great company because it has quality technicians. They are also very personable answering any questions you may have.

Question Mark IconHow often should a furnace be serviced?

You should have your furnace serviced every other year, but preferably once a year to catch any problems early on and keep it in top condition.

Question Mark IconWhat should I do if my furnace is making strange noises?

Turn it off. A properly functioning system shouldn’t make too much noise. If your furnace starts making loud and unusual noises, there is probably something wrong that may require repairs. Contact a professional furnace technician to assist you with addressing the issue.

Question Mark IconHow can I tell if my furnace needs repair?

Some signs that your furnace needs repair are gas smell, rust build-up, increased energy bills, unit’s age, and unnatural sounds like popping, rattling, or squealing, discolored pilot light.

Question Mark IconWhat is all involved with professional furnace maintenance?

At Kettle Moraine Heating & Air Conditioning our furnace maintenance is a 21-point check list that includes a complete cleaning and checking & testing your unit to ensure it is operating safely and efficiently.

Question Mark IconHow do I know if my furnace control board is bad?

If you start to notice your furnace turning on and off at unusual times and doesn’t respond to thermostat settings, you may have a failing control board. You may also notice excessive clicking noises or the blower won’t stop running.

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Based on 1513 reviews