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.


“The crew from Interstate was top notch. From the moment they arrived (on time) and introduced themselves, to the moment they left, we were completely pleased with the work they completed. They left the work site as they found it, so there was no extra cleaning up needed after they left. I would highly recommend this company and the team that worked on our replacement furnace.”
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'- Cindy A.

“The team was fantastic from start to finish. Our air conditioner had a coolant leak and needed to be replaced, along with the furnace. They were able to schedule the installation right away and walked us through the process to make sure we were getting exactly what we needed. They were very friendly and did a wonderful job cleaning up after!”

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'- Jessica Z.

“Eric O was timely polite & explained the repairs required in layman’s terms. Thank you for your time right before Labor Day”

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'- Kathleen G.

“Wow….. I made a call this morning in this disastrous heat and the service technician was prompt and repaired the system and looked at my other system and repaired that also I'm excited…..
I definitely would recommend interstate heating and cooling again and again”

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'- James O.

Need HVAC Service?

Contact the experts at Interstate Heating Co..

Call us at 262-246-4772!