Lucas with Kettle Moraine HVAC did a great job!

We always get excellent service from Matthew and Kettle Moraine Heating. They are the best. Fair pricing, knowledgeable, and kind.

Everything was top tier from beginning to end. The young lady on the phone really made me feel comfortable. I believe her name was Brianna. Brad was on time and very efficient. He wasn't even bothered by my little dog. He made sure I understood everything. He also let me know how important it is to have a yearly checkup on my new hot water heater. Thank you Brad.

Today we had Jeremy S as our technician. He was timely, courteous, careful and a hard worker! He thoughtfully answered our questions. We were very pleased with his knowledge and the work he completed! I highly recommend Bill B. He did a fantastic and thorough job again! Excellent customer service! Bill B has been our technician for 15 years. We love his personal and professional care!

Every tech I have had is always friendly and knowledgeable. Customer service has been helpful and keeps you informed of appointment arrival.

Very knowledgeable and helpful on how my Geothermal System works. Identified the electrical usage surge and fixed. Replaced a bad capacitor.

On time and experienced with my furnace system.

Lane did an excellent job today. No wasted time doing annual maintenance. And set me up for next year. I’m pleased with the job that was done.

Brandon & Mark gave my oil furnace cleaning & tune-up, change furnace filter . oil tank filter, tested the air quality. Exceptional job!

Jeremy serviced our furnace as it wasn't heating properly. He found the issue and resolved the problem. He was very professional and knowledgeable. Thank you Jeremy.

Reliable, prompt, excellent service. Service techs are always polite & competent.

Explained everything in detail was excellent

Everything was done quickly and professionally. Would definitely recommend again.

Erik did a wonderful job and he was very knowledgeable and personable! Excellent!!

Your service team member was very helpful and informative and knowledgeable. He went above and beyond with helpful suggestions and support for our families needs. Thank you Brent.

Mark was very knowledgeable and professional.

Matthew went out of his way with the maintenance of my furnace. He was efficient, knowledgeable and personable. Great to work with!

Jim went out of his way to find and pick up the filter I needed. Greatly appreciated!

Our technician Matthew was very professional. He explained every step of the maintenance procedure to me. He was very precise throughout the process. He explained technical issues to me in a simplified manner, even though I didn't have any problems with my unit. He offered sound advice for any questions that I had. He was very knowledgeable in his answers as well. My wife and I can really appreciate professional in service that is being rendered. Once again, continue the positive attitude and excellent service. Another satisfied customer.

Joshua was great, found some other issues when he was here and got them taken care of, thank you!

We were very pleased with the entire process from Kettle Moraine Heating and Air Conditioning. They provided us with multiple options to choose from to replace our broken furnace and air conditioner. These were given in a timely manner, with excellent customer service, and patience. Dane, Marc, Dustin, and Bill with his crew were fantastic. The prices were reasonable, the financing options were multiple, and we were able to select the financing option that best fit our needs. The work was done in about a half a day. The crew of three professionals led by Bill were courteous and friendly. They made sure that they cleaned up any mess that they made before they left and efficiently took out our old equipment. We definitely will be recommending them in the future if anyone we know of is looking for this type of work.

I switched to Kettle Marine heating and Air Conditioning because the contractor that installed my furnace in 2012 has gone downhill horribly with their service in the last two years. Jeremy was outstanding. I wish I'd been using him all this time. He pointed out so many things that the previous contractor should have done and didn't do. I feel so much better knowing he will be taken care of my air-conditioning in my furnace because his knowledge is excellent 09/23/26 Update: I had to get a new furnace because Ideal Mechanical installed my current furnace wrong and it corroded due to improper leveling. Jacob and Faith from Kettle Moraine installed my new furnace perfectly. They were very knowledgeable and thorough and installed the furnace very quickly. They were very patient and helped me with the new thermostat and my other questions. Another 5 star experience with Kettle Moraine Heating and Cooling

They were here on time! Got the job done and cleaned up nicely! Also took the old slab for me! I would hire them again!

I have known Brian for almost 20 yrs. He always does an outstanding job!!

Everyone from the team is always respectful and the service is fast, clean and efficient.