Kettle Moraine Heating & Air Conditioning, LLC is a third-generation family-owned business that has been serving Southeastern Wisconsin for over 35 years. Our mission is to provide every one of our customers with peace of mind and 5-star service. We believe healthy, comfortable indoor air is something you shouldn’t have to worry about. With over three decades of experience under our belts and an unwavering commitment to our customers, you can count on us to deliver the 5-star service and personalized care you deserve.

We Think Creatively

Not every install or repair is the same. Our team has the real-world experience to determine the best solution — no matter how complex the problem or situation may appear.

We Do Amazing Projects

From whole-home comfort systems and backup generators to solar panel installations and electrical services, each project we complete has lasting results. Our quality of service never fails to amaze our loyal customers.

Value Beyond Price – Kettle Moraine’s Commitment to Excellence

We know that not every home service company offers the same level of quality, expertise, and care that you deserve. With our 100% satisfaction guarantee, we’re not just installing a system, we’re ensuring your home comfort for years to come.

Here’s how we provide you with unparalleled service and peace of mind.

5-Star Service
Outstanding Google Rating – 4.9 Stars
24/7 | 365 Service & Support
Multiple Financing Options That Fit Your Budget
BBB A+ Rating
Process all Qualified Rebates for Customers
Approved Service Provider for Costco, Home Depot & Lowes
Angie’s List Approved
Manufacturer Trained Employees
Experts Who Never Stop Learning – Continuous Product & Technology Training
Follow all Manufacturer’s Guidelines
Pull Municipal Permits & Honor Local Codes
Register Equipment Serial Numbers
Carry Significant Commercial Insurance Policy on all Employees

NATE-Certified Technicians

Our technicians are NATE-Certified and Wisconsin’s best. NATE is the leading independent certification program in the country for heating and cooling professionals.

Lennox Premier Dealer

Kettle Moraine Heating & Air Conditioning has been recognized as a Premier Dealer since 2007. In order to earn and maintain Premier status, Lennox Premier Dealers must consistently exceed customer expectations. To live up to the highest standards in the industry, our team undergoes continuous training to design, install, service, and maintain HVAC systems.

Mitsubishi Diamond Dealer

We are also a Mitsubishi Diamond Elite Dealership and have invested in Mitsubishi’s rigorous factory training. Additionally, both Angie’s List and the Better Business Bureau give us their highest rating. We are proud of these certifications and recognition, but we’re most proud of the quality service we provide for our customers.

Unico Preferred Contractor & Provider

As a preferred Unico contractor and A+ provider in Southeastern Wisconsin, we take great pride in our partnership and the quality of our services. Our team is factory and field-trained, having installed a significant number of Unico high-velocity small-duct systems, earning us the Unico Veteran Badge.

Google Rating

4.9

Based on 2448 reviews

Kettle Moraine Heating & Air Conditioning, LLC

4.9

review us on See all reviews

David Gennrich

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Arrived on time, solved the plumbing problem efficiently and completed in less time than I expected it to take. Well done.

Jan Weyer

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We have total confidence in dealing with Bill. He is so knowledgeable and answers any questions we have with ease. Love his sense of humor. He's a keeper in our opinion.

Michael Garber

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Robert Schaefer

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Carl Lock

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Dylan Rohde was our service technician on November 19th for a furnace tune up. He was friendly, courteous and professional, arriving on time. Dylan explained his concerns to us and made several recommendations for us to consider. We have been very satisfied with our experience with Kettle Moraine Heating and Air Conditioning for many years. Thank you Dylan!

Jamee Glenn

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Dave Greenwell

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Karen Roberts

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Very courteous and professional installer s. Very happy with the installation.

David Griffith

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Always great service

Ann Hansen

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The technician was early! Which was helpful. Spent a lot of time and was very polite.

Timothy White

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Jamie Del Gaudio

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Roger Haab

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Arrived on time. Work thorough and completeCourteous. We have been extremely impressed with Kettle Moraine Heating and Air Conditioning over the years and have recommended them to our friends without reservation

Darlene Dewinter

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Cristie Emrath

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Kyle arrived promptly at noon, the earliestscheduled time for our a/c tune-ups. He introduced himself and immediately went to work. We found Kyle to be both completely professional and congenial while performing his duties ... deliberate and focused He's a very impressive young man! We are happy to request him to return to our residence for the equipment maintenance on our heating units as well.

Tammy Morgan

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Regan and Ryan did fantastic installing our new boiler. These men were knowledgeable and conscious of our home and surroundings. Regan explained all the work done including the new thermostats. We are very happy we chose Kettle Moraine for our heating system. We will highly recommend them to our family and friends and look forward to working with them in the future.

Kevin Fries

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Easy to talk to about estimate and what it entails. Very prompt and direct to work when they arrived. Answered any general questions we had and gave recommendations to better maintain our mechanicals for the future. Ngl default review text above matched my thoughts

James Gugg

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Very good job. Kept everything clean and cleaned up after he was finished. Quality water heater and quality workmanship. Thank you Cory and Kettle Moraine Plumbing.

Kerry Bruce

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Jacob Johnson service my furnace earlier this month & did a great job. He was polite, professional & knowledgeable.

Todd Schantz

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Very reasonable, straightforward business experience which is exactly what you want when dealing with Heating and AC. They arrived on time and did a good efficient job.

Tina Guillama

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Allison Dishaw

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Dylan arrived on time and did a thorough inspection of our furnace. He did find an issue and took the time to explain the issue as well as the options to resolve. 100% great customer service!

Kim Schraufnagel

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Alex Lintner

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Very polite and professional. Everyone involved from the free in-home consultation, the installation crew, office staff, etc were very helpful. The entire process from start to finish was smooth and stress-free.

jay macchitelli

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Perfect job thanks

Claudia OBrien

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Jeremy was very knowledgeable and friendly. Very prompt.

Mike Bero

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Andy

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This is the first time using Kettle Moraine Heating & Air Conditioning to service my furnace. I will use them again. JJ came into my home ready to put on his clean booties. He talked me through everything he was doing. He was courteous and respectful.I will call them next spring to tune up my air conditioner.

Rudy Baumann

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Mik Erwin

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Pete and Tucker were right on time, left my basement clean and answered all my questions till there were no more to ask. Very patient.Job budding from Kettle Moraine is the reason we went with KM. Scott gave me a Furnace 101 class so I knew what I was buying and spoke highly of the team of installers at KM.So glad we went with them! Well worth the value!

Molly Termini

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Had Kettle Moraine Heating and Air Conditioning out to my townhouse for a furnace check before winter. Also just to make sure it is in working condition because I know it’s old. Brent did an amazing job! He never made me feel pressured to buy a new furnace but did tell me it’s past its prime. He gave me prices for new furnace and AC and we scheduled to have them come out beginning of Dec! Definitely glad I picked them!!

Jeffrey Hinz

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Terrance Brooks

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Dustin arrived on time and diagnosed our problem. Good man to work with. Prompt, courteous and competent.

Bill Kingsley

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Continued great service!

Kevin Cecka

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Arrived on time and went over everything that would be done. Laid down floor coverings to reduce any mess. Once installation was complete, they went over the operation of the system. Very satisfied with Craig and the rest of the technicians.

Lauri

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Great effective and efficient service. Jacob was awesome! Knowledgeable, informative, respectful of my time and resources as the homeowner. I hope his employer gives him a raise.

Bill Lockwood

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Jim, was very courteous, professional and explained everythingto me. Thank you

Kathi Shepardson

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Kyle Youngman performed a furnace tuneup at our Wauwatosa home on 11/14/24; it was our first experience with K M Hvac. Kyle was very knowledgeable, polite, and never hesitated to answer any of the tech questions I threw at him, which were many. Most of all he was personable, and I felt comfortable having him in our home. Jack S

Mike Ganos

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He was very thorough. Did a great job.

sarah lewis

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Jennifer Warford

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Very professional company. Great follow up and communication. Reliable. They did an amazing job replacing our furnace and we would highly recommend them. We were very impressed! Thank you for the great service, price and job that you did!

m c

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I am working on a remodeling project in which I needed my cold air returns rerouted to different walls so that I can remove a pantry. After receiving an estimate, I scheduled an appointment to have the job done. Kevin and Mike from Kettle Moraine Heating and Air came out early in the morning and completed a job quickly and efficiently. They finished faster than I expected and didn’t leave a mess for me to clean up. They were polite and took the time to address any concerns that I had. After inspecting the job that they did, I saw that they completed it in a fashion that shows their years of experience and their level of expertise. As a homeowner, I couldn’t expect more.

Timothy Schenk

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Neat, clean, thorough work as always. Reasonable repair. If you have heating and cooling needs do yourself a favor give these guys a call.

Rebecca Wissell

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Quick response. Clear communication. Friendly. Easy to schedule an appointment for a quote.

Ellen Hansen

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Great pre-communication of arrival time, and during the cleaning, personable which put me at ease, was able to answer questions. I would highly recommend Kettle Moraine Heating and Air Conditioning, ask for Patrick Gorman as your technician.

Lee Turner

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Great job Kettle Moraine Heating & A/C! I love my garage heater.

Barbara Yahr

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An excellent service call for a check-up on my furnace! Paul explained things as he was doing them & recommended maintainance repairs with time-line estimates. I will definately be making an appointment with them, to have my AC checked before summer and furnace in a year, too!

mary kay hammes

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Jacob was very pleasant and very professional. He let me know what he was doing and why and answered all my questions. He also wore shoe covers and was very careful to make sure he treated my home with great care. I appreciate that.He did a great job.

Derek

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10/10 for my overall experience with Kettle Moraine Hearing and Air Conditioning. Everyone was professional, knowledgeable and efficient. Thanks to the crew installing this Renzor garage heater, I will no longer curse the frigid temps while working in the garage.

Karyn Brandt

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Matt W from Kettle Moraine was here this morning for my furnace tune up. My husband passed away this past summer and always handled these things.Matt answered all my questions and showed me a few things I needed to know to maintain my furnace. Thank you so much for your kindness and patience.Karyn B