Top rated
4.9
Mary Jo Mydlach
5 days ago
Tristan was a pleasure to deal with. Knowledgeable, answered all our questions and very patient. We will work with him. My son recommended him.
Response from the owner:Hi Mary Jo, we love gaining new customers through friends and family recommendations. We really appreciate you giving us a shot to handle your HVAC system. We look forward to helping you maintain your units in the future. Interstate Heating Co., Inc Oconomowoc | Hartland | Watertown | Repair
Michael Conway
5 days ago
Response from the owner:Hi Michael, thanks for your 5-star review. We appreciate your business and for trusting us to manage your HVAC system over the years. Interstate Heating Co., Inc Hartland | Pewaukee | Sussex | Maintenance
MARTIN THOMAS
5 days ago
Great guy!!
Response from the owner:Hi Martin, Thanks for taking the time to leave us a review and thanks for understanding the importance of maintenance. We appreciate your business. Interstate Heating Co., Inc Waukesha | Delafield | Pewaukee | Maintenance
Doug Lackey
6 days ago
Very knowledgeable technician. Did complete and detailed inspection and maintenance.
Response from the owner:Doug, you've been a customer of Interstate Heating for a long time and we're proud to hear our techs are still giving out 5-star service. Thank you for trusting us with your home. Interstate Heating Co., Inc Oconomowoc | Nashotah | Delafield | Maintenance
Mark
1 week ago
Response from the owner:Hi Mark, thanks for your 5-star review. We appreciate your business and look forward to servicing your home again. Interstate Heating Co., Inc Sussex | Brookfield | Chenequa | Maintenance
randy roets
1 week ago
Response from the owner:Randy, thanks for taking the time to leave us a 5-star review. We strive to make sure all of our customers are more than satisfied with our service. Interstate Heating Co., Inc Oconomowoc | Nashotah | Ixonia | Maintenance
Anthony Salerno
1 week ago
Josh was great. He made the necessary repairs in a timely manner, he was neat, very through and professional, He's just a very nice young man. The entire staff was excellent, as well.
Response from the owner:Hi Tony, thank you for your awesome review of Josh's visit to your home. We're happy to hear your whole interaction with Interstate Heating was a great one. Interstate Heating Co., Inc Germantown | Colgate | Menomonee Falls | Repair
Justin Ponzi
1 week ago
Dylan is a pleasant and professional technician. He called he was on his way and arrived as he said. Interstate Heating also sent a text and email about his arrival; there is also a link provided to a real-time map. He went straight to work and performed a thorough inspection and testing of the furnace. I feel confident we will have a comfortable winter. If you have Dylan come to your house, you too should have a good experience. Dylan, thanks again.
J. B.
1 week ago
Josh is very professional & knowledgeable. A+ service every time!
Response from the owner:Hi J.B, thanks for your 5-star review. We're appreciative of your business and glad to hear Josh gave great service. Interstate Heating Co., Inc Sussex | Brookfield | Pewaukee | Maintenance
Peter Peterson
2 weeks ago
Tristan did an exceptional job. He was very thorough and conscientious. He communicated our need very clearly.
Response from the owner:Hi Pete, thanks for taking the time to leave us a review of your recent service visit. We appreciate your continued business and look forward to seeing you at the next maintenance check. Interstate Heating Co., Inc Pewaukee | Hartland | Sussex | Maintenance


“Interstate installed my HVAC system in a new construction condo. After living in it for 16 months, I realized I hadn't replaced my filters. I called to have the system checked. Eric found my Aprilaire Humidifier wasn't working because of funky wiring and the filter was not installed correctly.”
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'- Janine A.

“Interstate was absolutely wonderful to work with. They answered any and all questions that I had. (And I had a lot of questions) They gave me information on when the work would take place and had my Carrier Infinity furnace/ AC unit in very quickly. The installation crew was also very knowledgeable and polite. They also helped me with paperwork for a rebate as well. Please note that Carrier is the way to go….. My old Carrier AC unit was 38 years old and STILL working!!!
I was in construction for 37 years and can tell good contractor people. Interstate was fantastic to do business with!”

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'- Gregg B.

“Total Care Package — AC Maintenance & Gas Leak Repair
Dylan is very friendly and knowledgeable. He was able to complete the AC maintenance, re-check the gas leak, and repair the gas pipe where the gas leak was with no problems. Thanks Dylan!”

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'- Bobbi H.

“Eric was reliable, courteous and fixed the air conditioner without trouble. I would call him again if the air conditioner needed service.”

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'- Cristine M.

“Our AC wasn’t working properly. I called and Interstate was able to send someone the same day. Casey came out and troubleshooted our issue right away and got it fixed quickly. He also cleaned up everything and was professional. Thank you Casey for a job well done.”

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'- Laurie R.

“Josh always does a great job. Listens to the issues and finds a solution. He is the one that I ask for when an issue comes up. Great job!”

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'- David C.

Need HVAC Service?

Contact the experts at Interstate Heating Co..

Call us at 262-246-4772!