Excellent
4.9
Diane Maniaci
10 hours ago
Another installer did shoddy work and our a/c unit developed a serious coolant leak. Our technician found and repaired the leak and serviced our system. He was friendly, helpful and prompt. A+
Jane Johnson
2 days ago
Very quick response and helpful technician. I always try to get some extra information about my HVC system and he answered all my questions.
Mary Dietrich
5 days ago
Joshua was very professional gave me very detailed information on what he was performing to my ACs. I highly recommend Joshua
Response from the owner:Hi Mary, thanks for taking the time to leave a review on Josh's recent visit to your home. We look forward to seeing you again. Interstate Heating Co., Inc Milwaukee | Brookfield | Wauwatosa | Maintenance
Julie Heyrman
6 days ago
The person answering the phone was friendly and helpful. Joe was out to our home promptly, addressed the issue, had good questions and came up with a solution. Thank you.
Response from the owner:Hi Julie, thank you for your review of Joe's visit to your home. Leaks can be worrying but we're happy to hear everything went well. Interstate Heating Co., Inc Sussex | Brookfield | Waukesha | Repair
Sue Stewart
1 week ago
We appreciated same day service on our air conditioner issue. Josh was knowledgeable, explaining our options, and not high pressure. Within an our our unit was up and running. We will definitely use Interstate Heating again!
Response from the owner:Hi Sue, thanks for taking the time to complete this review of Josh's visit to your home. We appreciate your business and your kind words. We look forward to seeing you again. Interstate Heating Co., Inc Sussex | Waukesha | Pewaukee | Repair
John and Cal were fantastic-very organized. Great people skills, tidy, systematic in everything they did beginning to end, their work seemed streamlined and impeccable, the clean-up thorough. Tom did a great job selling the process and product options, and expedited a quick installation and solution. The value proposition of a quality product seemed easy to accept when comparing g the choices. He spent time making certain I understood the details and how to explain to my husband who was working in Tennessee for the week.
Photo from customer reviewPhoto from customer review
Response from the owner:Hi Linda, Thank you for your awesome review of the techs! We are so happy we could get your install done so quickly for you. We're always a phone call away whenever you need us. Interstate Heating Co., Inc Sussex | Colgate | Menomonee Falls | Replacement
Jeff Guidinger
1 week ago
Response from the owner:Jeff, thanks for your review and for allowing us at Interstate Heating to figure out what was going on with your A/C. Dylan will have you up and running in no time. Interstate Heating Co., Inc Waukesha | Delafield | Pewaukee | Repair
Mary Clayton
1 week ago
Last weekend we had a horrible rainstorm. We got 4.8" of rain and lost power for 20 hours. When the power came on at 2:14am, exhausted we went to sleep. When we woke up the house was very warm and humid. I called Interstate Heating Sunday and left a message. Sure enough Monday bright and early we got a call. They sent a technician out same day. Josh quickly discovered it was the transformer in the furnace. It wasn't getting power. So the AC couldn't work. He fixed it so fast! We are back to normal and so greatful. Interstate has been our heating/ac for 24 yrs. Wonderful office staff, great service techs. Thank you Interstate!!
Response from the owner:Hi Mary, thank you for trusting us at Interstate Heating to get you back up and running. It's such great news that Josh got your repair done so quick for your home and got you back comfortable. We're always here when you need us. Interstate Heating Co., Inc Brookfield | Elm Grove | Wauwatosa | Repair
Steve Peters
1 week ago
Response from the owner:Steve, thanks for your 5-star review. We're happy that you were satisfied with Tristan's visit to your home. Interstate Heating Co., Inc Sussex | Colgate | Menomonee Falls | Repair


“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.

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Call us at 262-246-4772!