SOUTHEAST WISCONSIN’S HVAC EXPERTS

ESTABLISHED IN 1962

Schedule Service

SOUTHEAST WISCONSIN’S HVAC EXPERTS

ESTABLISHED IN 1962

Schedule Service

OUR STORY

Continuing a Tradition of Exceptional Heating and Cooling Services

What began in a garage in 1962—with Gordy and John Cole’s commitment to offering honest, high quality HVAC service—continues today at Interstate Heating Co. in Sussex. We’ve grown to offer the latest heating, cooling, and air quality products, and our service area now covers all of southeastern Wisconsin.

We are three generations strong and still follow the most basic rule of business: we treat our customers the way we want to be treated.

About Us

WHAT OUR CUSTOMERS ARE SAYING

“We heard a ticking noise in our furnace when the blower stopped running. It sounded like it was coming from the furnace. Dylan checked the furnace as well as a supplemental cooling duct we had installed previously for an upstairs room because it was too hot during the summer. He determined that the issue is the motor on the supplemental cooling duct that is wearing out. Once we turned off the blower for the upstairs room, the ticking noise stopped.”

- Gregg and Judy C.

“Eric O. did an amazing job getting our A/C back up and running. He is always thorough and extremely professional.”

- Ainsley B.

“Absolutley outstanding service from Eric O! Our daughters A/C unit went out one a very hot day and Interstate sent him out that afternoon. He diagnosed the problem and had the unit back up and running. We truly appreciated his kind expertise!”

- Tina B.