Excellent
4.9
Joe Lemel
18 hours ago
Sil Trevino
2 days ago
Martin Gallun
5 days ago
Josh really went above and beyond to get my boiler back up and running! I really appreciate his extra effort!
Response from the owner:Hi Martin, we love to hear Josh quickly got your boiler fixed for you. Repairs can be a stressful thing, but it sounds like Josh took great care of you. Interstate Heating Co., Inc Oconomowoc | Hartland | Pewaukee | Repair
Gretchen Arnett
5 days ago
Response from the owner:Gretchen, thanks for your 5-star review. We're glad the fix was a quick one before the heat really hits. Interstate Heating Co., Inc Brookfield | Elm Grove | New Berlin | Repair
Scot Muehlmeier
5 days ago
Friendly fast professional and very helpful. Not just the technician but the office staff as well!
Response from the owner:Thanks, Scot, for this awesome review! We strive to get the best of the best employees to keep our customers happy. We appreciate your business. Interstate Heating Co., Inc Oconomowoc | Hartland | Delafield | Repair
Dudley Larson
5 days ago
Again & V Again & Again …. great service! It’s so incredibly nice to have a service technician and knows exactly what he’s doing!
Response from the owner:Dudley, thanks for a great review! We love to hear that our long-time customers are still happy after all this time. Interstate Heating Co., Inc New Berlin | Brookfield | Elm Grove | Maintenance
Scott Laird
6 days ago
Fast friendly service. Got the job done right the first time.
Response from the owner:Hi Scott! Thanks for taking the time to leave us a review. We appreciate your business and love to hear feedback from our customers. Interstate Heating Co., Inc Sussex | Colgate | Pewaukee | Repair
Kevin Powalisz
6 days ago
Our technician Eric, really knows his stuff. He is a real pro! Great woork!
Response from the owner:Kevin, Thanks for your awesome review of Eric's visit to your home. We'll make sure to pass along your feedback. Interstate Heating Co., Oconomowoc | Hartland | Delafield | Repair
John Schwitz
6 days ago
Technician was very friendly and knowledgeable. Was very thorough and explained everything he was doing and showed me the results from all the tests he had done. I would recommend Interstate Heating to anyone needing service.
Response from the owner:Thank you, John, for your kind words and 5-star review! We're glad to hear our technician provided thorough service, clearly explained the process and kept you informed every step of the way. We appreciate you choosing Interstate Heating. Interstate Heating Co., Sussex | Brookfield | Colgate | Repair
Charles Sherry
1 week ago
Response from the owner:Hi Charles, thanks for your 5-star review! We love to hear you're still happy with us and our services after all these years. Interstate Heating Co., Inc Menomonee Falls | Colgate | Hubertus | 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.

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