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.


“Technician T. G. was professional, knowledgeable, and efficient.
He explained everything that he was doing, what the problem was, showed me the part that was not working and replaced it.
He further explained how to best manage cooling my house in the extreme heat, Wisconsin is having this summer.”
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- Jan B.

“Answered all my questions and reassured us that what we are doing to maintain the air conditioner and the
furnace is correct. He was very knowledgeable and added additional information if we needed more clarification.”

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- Patricia S.

“We heard a ticking noise in our furnace when the blower stopped running. It sounded like it was coming from the furnace. Dylan checked the furnace as well as a supplemental cooling duct we had installed previously for an upstairs room because it was too hot during the summer. He determined that the issue is the motor on the supplemental cooling duct that is wearing out. Once we turned off the blower for the upstairs room, the ticking noise stopped.”

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- Gregg and Judy C.

“Absolutley outstanding service from Eric O! Our daughters A/C unit went out one a very hot day and Interstate sent him out that afternoon. He diagnosed the problem and had the unit back up and running. We truly appreciated his kind expertise!”

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- Tina B.

“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.

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Call us at 262-246-4772!