Interstate Heating Co., Inc.

Interstate Heating Co., Inc. With over 20,000 HVAC system installations, we are prepared for any challenge. As one of the largest

Check Out the Deal Below! Call us for details at 262.246.4772!
12/31/2024

Check Out the Deal Below! Call us for details at 262.246.4772!

Happy Fourth of July
07/04/2024

Happy Fourth of July

Nothing like bright, cheery Daffodils to let you know spring is here!
04/15/2024

Nothing like bright, cheery Daffodils to let you know spring is here!

We receive countless calls every time the temperatures drop below normal ranges, as homeowners encounter problems with t...
01/03/2024

We receive countless calls every time the temperatures drop below normal ranges, as homeowners encounter problems with their home’s heating system.

At Interstate, we want to help you keep your Germantown, WI home comfortable in these record-low temperatures and arctic weather. 262-246-4772.

12/22/2023

Wishing our Interstate Heating Employees and Customers a very Merry Christmas.

Ductless systems, also known as mini-splits, provide heating and cooling without traditional air ducts. They are much si...
12/18/2023

Ductless systems, also known as mini-splits, provide heating and cooling without traditional air ducts. They are much simpler to install than a central HVAC system and offer other advantages as well.

Upgrade your HVAC equipment to help you save money on your monthly energy bills. Call us today for more information.
12/18/2023

Upgrade your HVAC equipment to help you save money on your monthly energy bills. Call us today for more information.

08/25/2023

Get Your Free Quote 👉 👉

08/03/2023

WITH RECENT COVID-19, SMOKE POLUTION, AND MORE PEOPLE WORKING FROM HOME; WE FEEL THE NEED TO OFFER SOME SPECIALS TO HELP KEEP YOU AND YOUR FAMILY SAFE INDOORS. OUR GOAL AT INTERSTATE IS TO MAKE SURE YOUR INDOOR AIR QUALITY AND COMFORT IS AT ITS BEST.

GIVE US THE OPPORTUNITY TO SERVE YOU.

CALL US TO GET A QUOTE OVER THE PHONE AND GET YOUR HOME BACK IN ORDER!

With over 20,000 HVAC system installations, we are prepared for any challenge. As one of the largest

07/20/2023

Are you looking for a way to give your home a touch of distinction and beauty? Interstate Heating creates and installs custom metal chimney shrouds. Call us today at 262-246-4772 to speak with one of our metal design consultants. Serving southeastern Wisconsin.

Address

N53 W24950 S. Corporate Circle
Sussex, WI
53089

Opening Hours

Monday 7:30am - 4:30pm
Tuesday 9am - 4:30pm
Wednesday 9am - 4:30pm
Thursday 9am - 4:30pm
Friday 9am - 4:30pm

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Our Story

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 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. And we know that comfort is a big part of what makes a house a home, so we make it easier to create and care for an ideal environment.

Interstate provides affordable heating, air conditioning, and indoor air quality solutions that fit each client’s unique needs, space, and budget. Benefits of partnering with us include:


  • Experience—we’ve installed over 20,000 heating and cooling systems in southeastern Wisconsin.

  • Expertise—our lead installers and technicians have been with us for 15 years or longer, and all receive ongoing training and recertification.