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.

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.👍

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.

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!

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.

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

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.

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!

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!

Frost free hose bib installation. Josh was excellent. He got the job done quickly and the work is outstanding.

Did a great job

Very thorough - took the time to explain issues and tips.

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!

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.

Service provider who came to my house with efficaciously fixed my plumbing problem. Further, service provider presented excellent people skills - polite, and attention to all my questions. Very pleased with the service that was granted me today.

Regan, Joe, Mason, and Lucas did an excellent job on my furnace and AC install. Not only that, but they were great at communicating updates throughout the process, very detail-oriented when it came to installing the equipment, conscientious and clean, and ensured that we were happy with every aspect of the work. I also appreciated that they took care in providing a tutorial on how to use the equipment and information on essential preventative maintenance like air filter and humidifier cartridge replacement to ensure mt furnace and AC last for decades.

Explained in detail what he was doing and had fair and honest recommendations for the furnace.

Did a great job!

Good team of guys. Went right to work.

Kettle Moraine Heating and Air Conditioning was truly exceptional in every way. Miguel came out to provide quotes for repairing our existing furnace and replacing it. He was knowledgeable, friendly and never made us feel pressured. We ultimately replaced our 11 year old furnace with a new Lennox, and I only wish we had known about KM when we bought our previous furnace. They offered a fair price for a two stage furnace, and we decided to enroll in their maintenance program as well. Before leaving, Miguel even took the time to bring up our garbage cans. That thoughtful gesture went well beyond what we’re accustomed to. Jordan handled the installation and was professional, incredibly hardworking and took the time to chat with me about the Brewers before he left. The installation looks fantastic, and the furnace is whisper quiet and runs much less often than our old one. If you need your furnace or air conditioner repaired or replaced, I strongly recommend giving KM a call. They also installed our central air, and we’ve been very pleased with it. I make a point of not speaking poorly about other local businesses, but the difference between how my wife and I were treated by KM and our experience elsewhere was eye opening. From the initial visit through installation, we felt valued and respected. After such a wonderful experience, we’re KM Heating and Air customers for life.

We had our annual furnace check and all is well. Andrew was friendly and did his thing efficiently. Very happy with the experience