Some of the hottest weather on record in Wisconsin and our air conditioner failed. Paul came out and within an hour we knew the problem and how to fix it and when the repair would be done and how much was estimated.👍

A good job

On time for estimate.

Excellent service from Dustin.

Dylon was great!!!

Jordan and his crew did an excellent job! Efficient and thorough! Cleaned up after and answered all of my questions!!!

Nice job

Derek and everyone that installed my new AC did great work. They were able to install it quickly!

Fast to respond, highly qualified technicians. Kettle Moraine Heating and Cooling did a great job getting us back up and running in the summer heat. Ask for Jacob. He was a great tech. Knowledge, experienced, and great to talk with.

They were wonderful from the start. Called on a Monday they came out the next day. And installed the new furnace/air conditioner that Friday. Why because they knew how hot it was going to get on the weekend. Very professional, great customer service and we’re so nice. I highly recommend them for all your needs with HVAC, Plumbing and Electrical.

Elian was very professional, helpful and friendly. I loved that he used shoe covers when it my house.

Kettle Moraine’s annual maintenance service agreement has been outstanding for several years. We have been fortunate to have Matthew out to do the annual A/C maintenance. Kettle Moraine and especially Matthew are extremely professional, courteous and attentive to every detail. Highly Recommended.

Responded fast & did good work.

Excellent work, very timely and communicative. Highly recommend

Riker and Dave did an excellent job installing a our new Lennex air conditioner during our current heat wave of 90+ temperatures.

Miguel came to our rescue at 9:30 pm on a 100 degree day coming up. Did an amazing job and explained everything he did. I will definitely which over to Kettle Moraine . Thanks again Miguel

Timely, personable, efficient

Dylan was helpful in explaining the situation and gave us options to address the problem or replacement options

Very nice gentleman and efficient. I felt so bad, he was working so long outside in the 100 degree heat. Hope he's ok. He did replace a couple of parts that were under warranty. Thank you

Mitch was great to work with in fixing my plumbing issue. Gave me helpful feedback on other potential repairs as well.

Awesome servicr e!

Kettle Moraine Heating and Air Conditioning has been great to work with. Techs are professional and knowledgeable and are always willing to answer any questions I have.

Techs Paul and Mark, both dug into an ongoing hvac issue that I had which was not able to be diagnosed by other companies I tried. They questioned and brainstormed ultimately finding an answer and backed it up with documentation from the furnace manufacturer.
Also very good communication from the office concerning their arrival time. Texted photos of the techs to me before their arrival.

Jacob is very professional and always does a great job. It’s also great that he has serviced my unit in the past and knows the history. Awesome!

The crew was great. They were super clean. I am very happy. Everything is working great. They reviewed everything with me to make sure I was good to go before they left.

Highly recommended! I had my whole central air unit replaced and the new one works flawlessly. The installation was quicker than anticipated, and by the end of it everything was cleaned up like nothing ever happened. The crew was friendly and knowledgeable and answered all the questions I had. Going forward it will be my go-to for any HVAC needs!

System works great, smooth install, experienced crew

Called in the morning and they were out the same day! Work needed was clearly explained and well done. Thank you!

Whole process was great from start to finish

The technician, Brent, was great! Very informative, professional and thorough.

Damyon did a great job taking care of our AC unit. He's very knowledgeable, pleasant, and professional. He was on time and took care of the problem efficiently. This is the second time he takes care of us. I highly recommend him for all hvac jobs. The cost was very reasonable too. Thank you, Damyon!

Technician Jeremy was on time and performed a quality job for my annual ac maintenance visit. I would highly recommend Kettle Moraine HVAC. Nice job!

Brad was knowledgeable, efficient and pleasant to work with. He flushed my water heater and checked the plumbing throughout my home. I appreciate his service!

The teams that came out for my AC, furnace, water heater and water softener replacement did an excellent job! Showed up on time, professional and knowledgeable. Highly recommended!!

Super nice, on time, and install was perfect!

Great work, very competent technicians with incredible customer service approach, highly recommended

Doug was a joy to work with during the fall HVAC tune-up. He explained what he was doing, answered my questions, offered suggestions for regular upkeep and diligently problem solved to get everything working optimally. Thanks!

Update: Spring 2023
The HVAC system was running well all year! Doug came back and performed annual maintenance, cleaning and checking the system. Easy to schedule and work with Kettle Moraine.

Update Update: Spring 2024
Consistent maintenance pays off as small problems are caught and fixed in May before they become a HVAC crisis in July or January. Service personnel are consistently professional. Thank you Kettle Moraine!

Update Summer 2025
Jeremy was super efficient in tuning up the AC units at our duplex. Scheduling service for AC, furnace and hot water tanks was a breeze. Thank you!

September 2025
Dan and crew installed new AC units. They were on time and efficient as they removed the old ACs, explained how they were recycled, and then got the new units in place. They answered questions along the way and gave tips on how to keep the AC running efficiently. I especially appreciate the clear instructions troubleshooting shooting tips that they posted on the blower units.

Update: July 2026
Brad conducted a thorough and efficient service on our hot water tank, draining it and cleaning out any accumulated debris. He also conducted a whole house plumbing inspection, supplying several helpful observations. Thanks Brad!!!