The technician was extremely knowledgeable and explained everything perfectly.

Brian our technician called prior to arrival and stated he would be arriving on time. He introduced himself, put on plastic boot coverings. He evaluated the 20 year old furnace explaining what he would be doing and got right to work. Brian explained what he was doing as the work progressed and took the time to address each of my questions. Brian did a thorough job of cleaning everything and explained in detail why he was taking things apart to clean and took pictures to make sure everything was put back together properly. On finishing he vacuumed around the furnace and made sure I was satisfied with the work. Brian thanked us for choosing KM Heating and Cooling and verified that I was on the cheddar A/C maintenance in spring. A job well done.

Great communication! Made sure to check and adjust everything that was needed! Went the extra mile.

Brent was very informative about the unexpected repairs needed for our AC unit during our maintenance checkup. Very thorough and would highly recommend them.

Luke was a friendly and courteous technician. He did a meticulous job checking over the A/C system.

Very informative technician. Matt took the time to answer all my questions and provided great service.

Kettle Moraine is providing a great service. We are very grateful to Paul Purdy and Kettle Moraine as a whole for continuous and highly professional support of our heating and conditioning system! The quality of Paul’s work is outstanding and we highly recommend Kettle Moraine!

Had them install a new furnace/AC last December. Finally needed to turn in the AC on last week and it was making a metallic buzzing noise. I called to get it looked at and a service tech was here in about 20 minutes, he diagnosed the problem in about five minutes and only needed 10 minutes to fix it. [manufacturer's issue, two pieces of metal were touching that should have been, causing a vibration]. Works fine now.

I had an Aprilaire unit installed. Jacob did a nice, professional job in a timely manner. Very pleased so far.

The technicians at Kettle Moraine are knowledgeable, friendly, and honest. I appreciate how they explain what they're doing and answer my questions.

Technician was very personable and took the time to explain everything. My house is no cool and I am forever grateful for the excellent service.

Great company. Knowledgeable and trustworthy.

Excellent. Annual check - and customer education.

Very nice and pleasant explained everything to me that he was going to do before he did anything

Did wonderful work. Very happy with the finished product!

Excellent service! Dylan was fantastic!

Jim did a terrific job today as usual. He analyzed our problem and gave us several options for repair to stay within budget. Top-notch service from end to end.

Patrick was extremely professional and thorough with the furnace checkup. I highly recommend Kettle Moraine Heating & Air for services. Great people.

We have annual maintenance contract and both heating and air conditioning checkups were very thorough. Brandon was very nice and efficient.

Good, timely service without the constant “upsell” attempt from our prior service provider.

Jacob and his team at Kettle Moraine were professional, informative , knowledgeable and respectful of our home.

He was very nice And easy to talk to. Answered all my questions except I don’t know how much Home Depot’s interest rate would be after the two-year 0% and if my air-conditioning is not broken I’m not gonna spend 8200 sorry for a new one. I will either fix it try to compare prices because I just spent $10,000 on a Furnace through your company

Very pleasant experience. Polite, careful service tech. Took his time and explained his process to me.

Outdoor spigot was leaking back into the house, they replaced everything and left it better than we had it.

They were quick, friendly, and thorough.

Paul did a Great job of explaining the work he was doing. Friendly and Courteous to us.

Friendly professional and answered my questions.

Communication from the entire team was great. The installers Scott & Faith very knowledgeable & listened to my concerns. They spoke to my apartment manager about install. Pictures,measurements, & assured me they could do the install of an in-wall ac unit..

Matt is an extremely knowlegeable and experienced furnace technician who was very forthcoming with answering my questions about the condition of my furnace. He was verycourteous, cordial, clean cut, and very professional. Also, Matt maintenance inspection was very thorough. He went through the furnace from soup to nuts. I am very satisfied with the service Matt performed, and with Kettle Moraine Heating and Air Conditioning.

Pete and his crew did a very neat and professional removal of our existing furnace and an installation of a new replacement furnace. They were very polite, knowledgeable, and left no mess for me to clean up. I was impressed with the whole process. I would definitely recommend them to all my friends.

Khamya performed a periodic maintenance check of our HVAC system. She was very thorough and did a great job at checking over everything. She was also very cordial and communicated very well

Good communication great job, a very focused team.

Very knowledgeable and helpful technician. I called in the early evening because there was water leaking out from under the furnace after a hot day with consistent AC use. I initially spoke with an emergency technician, but it would have been 9 pm before he would have been able to get here, so I decided to wait until morning. The scheduler got a technician here by noon and he diagnosed and fixed the problem -- a plugged drainage tube -- and then fixed a couple of things that had been wrong from the original installation 9 years ago (different company) and told me what minor maintenance I could be doing on a regular basis to keep things running well. As in the previous service calls from Kettle Moraine, this was a very positive experience and I wouldn't hesitate to recommend the company to anyone who need HVAC service.

Kevin and Mike did a great job removing the old HVAC system and explaining to me how the new one will be installed. They removed all the refuse and left the space as they found it.

Showed up on time; vey professional and got our service done efficiently!

Shawn was great and explained his service work and overview very well

Fast and efficient replacement of our HVAC system. Very knowledgeable and courteous.

The crew was no polite, friendly and professional. They cleaned up every thing prior to leaving. They explained everything and answered all of our questions. Definitely would recommend Kettle Moraine Heating!

Absolutely the best experience I’ve ever had with a subcontractor. Everyone was nice and professional. Follow up was impressive as well.

Luke is always my go-to guy for furnace/AC work with Kettle Moraine. He remembers my house/system and its history and makes the appointments seamless. Highly recommend Luke or anyone else from Kettle Moraine Heating & Air Conditioning.

Brett fixed my ac that is in the ceiling of my kitchen. Working over my kitchen island is a challenge in itself . He protected everything with a movers blanket which I appreciated. He also had me listen to the unit to make sure it’s sound level after the repair was perfect.

Not sure how old the water heater is exactly, but Jess & Ethan, went the extra mile to flush it out & complete the job. Also gave me an estimate on a replacement as well, when Iam ready to do it😄

Had a PM done on our 2 year old furnace. The technician Matt was very knowledgeable and explained all the work he was going to complete prior to starting the job. He was very thorough and professional. Also he saved me some money on including a future PM on our A/C unit.
A job well done.
PM on our 25 year old A/C unit was done by Brandon at the end of May. He thoroughly went over everything, made adjustments and explained what he found. Ended up replacing the original contact board on the unit.