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


“Eric was very courteous, knowledgeable, and efficient. He figured out the problem quickly and explained how to prevent the same issue again. Thank you!”

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'- Tim M.

“Chris came to our home on time to fix our air conditioner. Interstate called me early in the morning. Interstate was returning my phone call (I had left a message), to schedule a technician to come to my house. Chris showed up at my house on time 4 hrs later to investigate the air conditioner problem. It took him approximately 30 minutes to diagnose and fix the problem. There was a broken piece of equipment called a capacitor. The bottom line is the problem is fixed and cool air was wafting inside my house in approximately 30 minutes. I certainly could not have asked for better service!”

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'- Robert M.

“Response to weekend service call was quick. Technician diagnosed issue and problem resolved. We have experienced great service from Interstate for the past 24 years! Including the original and one replacement AC/Furnace. Could not be happier with Interstate!”

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'- Ken Y.

“Chris Carne came at the worst possible time (not his fault) but I had to talk on a live webinar and so I couldn't provide him much context at the time he arrived. He fixed the air conditioner in 30 minutes or less and figured out where everything was on his own. I appreciate his help in an awkward situation.”

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'- Ben K.

“AC unit stopped producing cold air on a very hot day. I called after hours and received emergency service. The Tech (Jason) quickly arrived and fixed the problem. He answered questions and the problem was fixed in about 20 minutes.”

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'- Mike M.

Need HVAC Service?

Contact the experts at Interstate Heating Co..

Call us at 262-246-4772!