Top rated
4.9
Dale Miller
18 hours ago
Here right away. Knowledgeable. Friendly. Thorough. Couldn't ask for more.
Sandra Feller
2 days ago
Friendly and great service!
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
7 days 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


“Dylan was very professional and knowledgeable in my yearly tune up of my AC system. He also helps with my annual maintenance of my furnace and I have the ultimate confidence in his work. He answers all my questions and concerns, job well done”
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- Chad S.

“Five days ago, I did a Google Review that I really didn't want to submit, because of a service call that left us questioning if our furnace was really repaired to the standard we've come to expect from Interstate Heating over the past 30 years. Turns out our worries were warranted as days later, we noticed water leaking from the unit. We called in and talked to Matt. He listened to our story and was able to send technician Chris Carne at the next available opening. We can't possibly say enough good things about the service that we received from Chris. He immediately found the problem, thoroughly explained how he would be making the repair, had the parts and tools with him and completed the work quickly with no extra charges or sales pitches. It's now been 2 days and the house is warm and the furnace is dry. Thanks to the great customer service by Matt and the outstanding work done by Chris, we now have renewed confidence in Interstate Heating that made us choose them 30 years ago. We will remain with Interstate as long as Matt and Chris continue their awesome service! Thank you so much!!!”

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- Jeff T.

“The team of Antonio Stanisch was very professional and courteous. They answered all my questions and walked me through the process. They also took all precautions to not damage any floors and left our place clean.”

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- Johannes S.

“Tristan once again gave us excellent service. He was very informative, explaining what needed to be done and what he did. He even provided photos. We are very satisfied.”

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- Mike G.

“I called the morning after a holiday, and Matthew was very helpful in getting us the assistance we needed. Chris was able to arrive a bit early and quickly troubleshoot and identify the exact issues with both our boiler and furnace. He was polite, knowledgeable, efficient, and cleaned up thoroughly after completing the work.

Every time we’ve worked with Interstate Heating, they’ve been responsive and helpful—from the office staff to the technicians. I truly feel they are honest and have their customers’ best interests in mind.”

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- Karen B.

“Called in this morning and someone was in my house within hours. The issue was solved and no one tried to charge me or sell me something we didn’t need. Very grateful on this cold winter day for their quick response and Chris’s expertise.”

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- Ashley H.

“Dyaln and Tim came out and were prompt, efficent and answered all of my questions. All is working great. I reccomend Interstate to all my friends.”

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- Norm R.

Need HVAC Service?

Contact the experts at Interstate Heating Co..

Call us at 262-246-4772!