Aug 2026
Very professional, did a very good job explaining the situation, took care of things quickly.
About Interstate Heating Co., Inc.
Interstate Heating Co., Inc. began in a garage in 1962 with a commitment to honest, high quality HVAC service. Today, the company offers the latest heating, cooling, and air quality products across southeastern Wisconsin. As a leading Carrier dealer, they provide equipment of the highest caliber and adhere to stringent standards for customer service.
Jim and his team did a fantastic job with a boiler replacement—really nice, professional, on schedule, and on budget. Matthew got an A/C up and running, and Jonathon and Cal installed a new unit within the time schedule, working well together. Eric serviced an air conditioner, making the system significantly more efficient. Tristan was extremely knowledgeable, skilled, and kind, advising on vent and fan use. Joe was friendly, professional, and kept the customer updated the entire time. The team is great, super reliable, and very thorough.
Reviews
Jul 2026
Helpful and professional
Jul 2026
Eric was very knowledgeable and did a great job for us in getting our AC back up and cooling. This the second time using Interstate and having Eric out to our house. They are truthful and get the job done right!
Photos
Hours
Monday Open 24 hours
Tuesday Open 24 hours
Wednesday Open 24 hours
Thursday Open 24 hours
Friday Open 24 hours
Saturday Open 24 hours
Sunday Open 24 hours
Location
N53 W24950 S Corporate Circle, Sussex, WI 53089
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