I had a Generac installed and it was actually a pleasant experience … would highly recommend them

Very personable. Very concerned about doing a great job and making sure we understood everything. Well done Mike and Justin.

Khamya from Kettle Moraine Heating arrived on time to tuneup my furnace & humidifier. She did a great job in a short time, cleaned up after herself & was very friendly.

Jacob performed routine maintenance on our HVAC system. He noticed that the capacitor on the air conditioning unit was wearing out. Fortunately it was still under warranty, and Jacob replaced it. We’ve been pleased with all of Kettle Moraine’s technicians.

Prompt friendly & knowledgeable

Our furnace/AC replacement was scheduled quickly, just a couple days after meeting for a quote. We were provided options for good, better, best and feel confident in the products we purchased. Bill and his team did an excellent job at install - cleaned up and explained the new systems to us before they left!

Sam, the sales rep was very knowledgeable. He bent over backwards for me. Due to my schedule it was hard for a larger project like mine to get done quick enough to not affect what I do for work. 5 guys showed. Ryan, scott, JJS, Zach and Brett got all the new stuff in here and the old stuff out asap. Then the electrician and another guy showed up, gut their part done efficiently and let the original five knock this thing out. It was no small project either. Furnace and AC plus upsizing multiple ducts, cutting through the floors to upsize the floor registers, etc. Maybe 8 hours and it was done. I've been in residential construction of some form or fashion for a long time and I can tell you I wouldn't go anywhere else after this experience and I will refer this company to others.

Miguel was on time, professional and very friendly. Performed maintenance on our furnace efficiently .

Khamya was great! Right on time, pleasant and professional. She did a great job, thank you!

KM completed water heater maintenance for us for the first time. The technician was very polite and knowledgeable.

Great service and a friendly face

Erik and Jim did an outstanding job on our AC tune up and on replacing our dual capacitor! Erik took the time to explain what the part did, and shared current readings and past readings that Jim had recorded previously. Appreciated the before and after pictures of our AC unit cleaning.

Lucas, my technician was prompt and set about doing his job in a timely and efficient manner. I had some questions about operating my generator and he answered them several times over until I felt that I understood them. He was very patient with me. I appreciate that so much.

Jeremy is very Prompt friendly very knowledgeable and professional great service

Very professional and educational. He and Lane were very respectful of our home

Lucas was very professional and personable. Very knowledgeable and was able to answer any questions I had. I’d give him 5 of 5 stars!

I got all of the messages, ie, “on the way” and introducing the tech, “here”. Expectations more than met. The tech, Miles, was so personable and courteous. Just a really nice young man. Did all of the checks and explained all of the results. A stress-free visit and nice conversation.

Jon was knowledgeable and courteous. Highly recommend

Senior technician Paul and trainee Zach did an excellent job of analyzing our rather perplexing problem with our furnace circulating fan. They pinpointed the problem, replaced a board and tested. We are very pleased with their professionalism and responses to our questions.

Our AC capacitor took a hike. Jacob B. got the service call. I wish all service people were like Jacob. New his job, willing to explain things and checked everything over before he left. Very professional and friendly on a Saturday afternoon Service call.

Complete HVAC system removal and installation of New Lennox

I had a sudden and serious leak coming from my furnace that I noticed today. I contacted Kettle Moraine Heating & Air on a Sunday evening and they called me back quickly. There was a gentleman, Jacob, who was going to a job in the next town over and said he could call me when he was done. He called me a little bit later and said he could be over in just a few minutes (this was at 7pm on a Sunday evening). He got to me very quickly, and not only fixed my problem fast, but also was very thorough and knowledgeable in explaining to me what happened and how I could've caught the issue earlier. I am now more equipped as a homeowner. The bill for the service was very fair considering it was non business hours. He also did a thorough check outside and around my property to ensure there were no other immediate problems before leaving. Jacob kept in contact with me before coming just as he said he would and he was great while he was here. Overall, I had a great experience with Kettle Moraine and am very happy to have my AC back up and running swiftly on this hot Summer day. Thank you!!

Technician was courteous and professional and took time to explain what he was checking. Made us feel comfortable knowing our a/c system is working properly.

Excellent, fast, and honest service.

Install of new central air and furnace