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.


“We were very satisfied with the prompt response and service from Interstate, and especially Eric who came to our house and replaced the capacitor in our air condition compressor. He was very personable and courteous and he seemed to know what to look for and quickly replaced the capacitor. We would highly recommend him and Interstate to our relatives, friends and associates.”

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'- Joseph K.

“Two service technicians came on time and replaced the secondary heat exchanger in little over two hours. They were efficient and courteous. I have had Interstate do maintenance on my furnace and A/C for over 13 years. They are fair and upfront with pricing and any component failures. I would and have recommended them to my friends.”

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'- Robert W.

“Our tech, Chris, was very thorough with checking our heating/cooling system. He also answered my questions regarding maintenance I should do between service.”

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'- Pat B.

“Knowledgeable, efficient, knew what he was doing, systematic approach to diagnose solution. Kept me informed on what and why he was checking certain things.”

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'- Carl C.

“Excellent service from start to finish!!!! From scheduling, staying in touch about arrival, coming out quickly to service, and quickly and successfully fixing. Chris was a great service guy! Very professional and personable. Office staff is great too! Thank you!”

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'- Lorraine C.

“Your technician, Eric O., identified and replaced the failed part promptly. I also appreciated the prompt response of less than a day to my call for assistance.”

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'- Brent L.

“Casey was great! Arrived on time, with text notification. Upon arrival did a check of the system and provided a thorough explanation of what the potential causes were. Then, I went to the outdoor unit to investigate and, thankfully, found no serious issues. Also checked the main unit in the basement and found no issues.

Great visit!”

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'- Tom A.

“Eric was very helpful in all he did and worked hard the entire time he was here. We had an appointment to go to and he even worked it out so that both my husband and I could go together. Much appreciated.”

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'- Marilyn W.

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Call us at 262-246-4772!