Top rated
4.9
Dale Miller
21 hours ago
Here right away. Knowledgeable. Friendly. Thorough. Couldn't ask for more.
Response from the owner:Hi Dale, thanks for your 5-star review of Josh's visit to your home. We're glad to hear that his service was to your standards. Interstate Heating Co., Inc Muskego | Waukesha | Mukwonago | Maintenance
Sandra Feller
2 days ago
Friendly and great service!
Response from the owner:Sandy, thank you for your kind words. We're happy we could get that unit replaced before the cold weather hits. We are always a phone call away. Interstate Heating Co., Inc Waukesha | Pewaukee | Sussex | Replacement
Andy Murphy
3 days ago
On time, knowledgeable and efficient.
Paul Schreiber
4 days ago
Great job.
Mark Kaminski
6 days ago
Tristan did an outstanding job! As usual, I have always been satisfied with the service we received from Interstate.
Paul Miller
1 week ago
Technician arrived on time. He was courteous, professional, and check system thoroughly. Turns out thermostat was off.
Response from the owner:Thanks, Gordon, for leaving a 5-star review. We appreciate your business and we're glad it wasn't a more serious issue. Interstate Heating Co., Inc Oconomowoc | Pewaukee | Hartland | Repair
Carla Cross
1 week ago
Customer service friendly and helpful scheduling services. Communicates via text and email on the status of repair person. Repair person works efficiently and provides training on new equipment installed.
Mark Treadaway
2 weeks ago
Efficient, polite, and professional. You’ve got a very good employee working for you.
Response from the owner:Thank you so much for the 5-star review! We truly appreciate your support and are glad to hear you had a great experience with our team. INTERSTATE HEATING CO. INC, HVAC | BROOKFIELD | DELAFIELD | MAINTENANCE
Martin Wisland
2 weeks ago
Response from the owner:Hi Martin, thanks for taking the time to leave a review for your maintenance visit. Kudos to you for keeping up on your preventative maintenance annually! Interstate Heating Co., Inc Menomonee Falls | Brookfield | Colgate | Maintenance


“Problem:furnace shutting off before achieving desired temperature.
Technician spent 30 minutes trying to repeat the problem but couldn’t. He set blower speed up a small amount to keep furnace from overheating.hopefully this solved the issue”

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'- Bob P.

“Dylan arrived as scheduled and found the problem quickly. He checked everything else and changed the filter for me . Interstate has been our go to since 1992, wouldn’t call anyone else. Excellent service!”

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'- Theresa S.

“Josh was very nice and professional. I appreciated that he responded to the service call later in the evening. I would recommend Interstate Heating.”

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'- Kim W.

“Our furnace didn’t appear to be running properly and there was a burning smell coming from the vents. Called Interstate at 3:30pm and a very knowledgeable service rep was at our home by 4pm! After determining the cause and weighing options of repair or replacement, we made the decision to replace. This was on a very cold winter day/ night. A new furnace was installed the very next day (arrival at 7:30 am) and completed in a timely manner. All employees were very kind, answered any questions and knowledgeable. I can’t thank them enough for getting out heat up and running!”

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'- Emily T.

“From the first phone call to your company to the good by to your service team ant the end of the day after our install, all experiences were absolutely wonderful. We had both an install of a new a/c and gas furnace. Sam and Jason were extremely friendly and professional. Our salesperson Grant was a pleasure to work with. He explained all the details of the systems; no surprises; very good pricing. I would highly recommend Interstate to all my friends and family.”

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'- Tamara W.

“The service call for maintenance on my furnace was completed in a professional manner and all questions answered. I was very pleased with the entire experience.”

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'- Judie M.

Need HVAC Service?

Contact the experts at Interstate Heating Co..

Call us at 262-246-4772!