Excellent
4.9
Paul Schmid
3 days ago
Eric explained all issues with system and was very courteous. Would highly recommend 👌
Karen Branch
4 days ago
Prompt service and had the parts needed to work the AC again.
Response from the owner:Thank you for your feedback. We appreciate you taking the time to share your experience. We understand that pricing for maintenance can sometimes feel higher than expected. Our goal is to always provide reliable, high-quality service using skilled technicians and dependable materials to ensure long-term value and peace of mind. That said, we never want cost to feel like a surprise or barrier. We're always happy to walk through estimates in detail, discuss options and find solutions to best fit your needs and budget. We truly value your business and hope to have the opportunity to serve you again and provide an even better experience next time. Interstate Heating Co. Inc, Mequon | Germantown | Thiensville | Maintenance
Julie Offutt
5 days ago
Eric serviced our air conditioner; outstanding. Our system is significantly more efficient now that it's clean. Tristan was amazing. He advised me to close vents/redirect air to the rooms that needed more heat and to leave on the fan to protect our HVAC system: : : he did suggest adding a line to the basement to give more heat as well which we will likely do. He was an extremely knowledgeable, skilled and kind service man : thank you-Julianne
Excellent service. Knowledgeable and caring serviceman!!
Kath Swanson
7 days ago
Chris is an excellent technician. He is prompt, polite, competent, and explains the services and/ or fixes clearly.
Gary Webb
7 days ago
Eric was awesome, did a great job, quick, complete job, explained everything, all for a fair price.
He was very Thorough and explained everything. He was here last year and talked to Dennis. We will call on him when it needs to be replaced.
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, INSTALL | WAUKEHSA | GERMANTOWN | MAINTENANCE
David Allard
1 week ago
Laurie Kempke
1 week ago
The technician was polite and friendly. He explained the process and results. Would recommend to my friends.


“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.

“Chris Carne was the technician who came to our condo today to repair and service our gas furnace. He did a very thorough testing of the furnace and discovered we had a faulty gas valve. His courteous explanation of what he was doing along with his nice personality made this repair a pleasant experience. We would highly recommend him for any of your service issues.”

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- Alan R.

“Eric, John and Carson were all phenomenal with the replacement of my 20-year-old AC unit. Communication and work ethic were awesome. Thank you!”

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- Amy K.

Need HVAC Service?

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Call us at 262-246-4772!