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Kettle Moraine Heating Buildings

Kettle Moraine Heating & Air Conditioning is a family-owned company that’s been around Southeastern Wisconsin for 35+ years — helping neighbors stay comfortable through freezing winters, humid summers, and everything in between.

We live here too, so whether it’s your heat, AC, plumbing, electrical, or air quality system giving you trouble, you’re not calling a stranger, you’re calling a neighbor who’s close by and ready to help.

Your repairs, installs, and maintenance are all backed by brands we trust including — Lennox, Mitsubishi, Carrier, Generac, Bradford White and others.

Local people. Local homes. Local comfort.

For all your home comfort needs, reach out to us today—we’re here to help!

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What Our Customers Say
rev dave
4 hours ago
The installer was great. The job organized and completed fast. For the amount of work it seemed a high price. But I’m satisfied
Denine Brinkmann
5 hours ago
My guy was amazing.. fast.. friendly..knowledgeable.. I would recommend you for sure!
David Clauff
6 hours ago
Prompt, courteous, and explained what he did.
Highly recommend!! From the detailed description of needed replacement gas furnace, price with allowed financing, timely delivery and installation, inspection and maintenance plans provided, everything was stellar for outcome and reliability and professionalism!!!
Kathy Stout
8 hours ago
Good team of guys. Went right to work.
Mitch Stew
11 hours ago
They showed up and very quickly assessed my problem and gave me a clear estimate for less cost than another competitor. I will use their services again if necessary.
Mark Neubauer
11 hours ago
Cory did a fantastic job servicing my tankless water heater. He was very professional and provided great insight. He went above and beyond what was expected. Thank you.
The entire crew that came to deal with my new boiler was professional thoughtful and so awesome! This was a very costly repair/replacement but I felt assured that I was being treated with the utmost respect
Mike was extremely knowledgeable. Explained both what he was doing and why and what it meant. This was on a furnace checkup. When I do it again next year I will want him as the technician.
Kettle Moraine is the second company I have used for HVAC service. We were happy with the outcome. Technicians were prompt, courteous and efficient. There was no pushy sales pitch that we endured from the previous company. Time was taken to explain results and I felt that I could trust them.
Brian Funk
1 day ago
Scott and Zac did an excellent job installing an air purifier for our condo. I would highly recommend them to everyone. They even cleaned up the mess.👍
Matt Ebbe
1 day ago
Tech (Jacob J) came out at the agreed upon time. Was knowledgeable and helpful and handled our issue in a polite and professional way. Would definitely recommend to anyone looking for home HVAC service.
Jim Szewczyk
1 day ago
Derek did a great job with my new furnace install. He was professional and did a great job explaining the features and operation of my furnace. At the end of the install, all areas were cleaned up and garbage removed! Well done Derek!
Joanna Rogers
1 day ago
Aaron did a top notch job on install of our new furnace and April air. Spent time explaining our new smart thermostat as well.
Very informative technician. Matt took the time to answer all my questions and provided great service.
Tina Konitzer
1 day ago
Miles was here during the time they scheduled. He explained what he was going to do, then summarized what he did in a clear language we could understand. He was in and out in a reasonable amount of time. The price was reasonable. They will be coming back for the air conditioning service in spring. We were please with the experience so we decided to do the maintenance plan. We would recommend.
The service was great. The technician was excellent, but the repairs was so minor the price seem high
JHW
1 day ago
This was Eric’s first visit to my home. He arrived as scheduled, and I appreciated his call saying he was on his way. Eric explained what he did, took photos as proof and did an excellent job. Thank you Kettle Morraine.
misty wirth
2 days ago
I called on a Friday and had an appointment for estimates right away on Monday, we had Jay come and he was great! He explained everything so well and gave us plenty of options from what system to get and even went over all the finance options. Tuesday we had Aaron come and put the new system in and it went great! From the first phone call to having everything done went extremely smooth. Would highly recommend!
Cheryl Luttinen
2 days ago
We have worked with KM Heating and Air for previous projects and have always been satisfied. Today, Cory came for what we thought was a simple hot water valve replacement under our kitchen sink. It turned out it was something completely different. He was very thorough and explained everything in detail. His 30+ years of knowledge definitely came through. Our hot water is working again and the water pressure is better than before. Thank you!
Tim Vetscher
2 days ago
Frost free hose bib installation. Josh was excellent. He got the job done quickly and the work is outstanding.
Randy Wirth
2 days ago
Did a great job
Michael Hartert
2 days ago
Very thorough - took the time to explain issues and tips.
Peppo Meppo
3 days ago
I had an excellent experience with Kettle Moraine Heating & Air Conditioning. My HVAC technician, Paul, did a phenomenally thorough maintenance job on my heating system. He didn't rush through the appointment at all; instead, he took the time to inspect every component carefully, clean out the system, and ensure everything was running safely and efficiently for the colder weather ahead. It is rare to find a technician who is this detailed and truly takes pride in their work. I highly recommend Kettle Moraine and specifically Paul Purdy if you want your heating system serviced the right way!
David Bronkalla
3 days ago
Our furnace was not working in early November and I was unable to fix myself. JJ was very professional and did an excellent quick job resolving the issue. The part was covered under warranty and the labor charge was very reasonable. The scheduling was also very easy to do online with quick availability.

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