Welcome to Interstate Heating Co., Inc.

At Interstate Heating Co., Inc., we are committed to providing expert heating and cooling solutions to homes and businesses in Sussex, WI, and surrounding areas. With years of industry experience, our team is dedicated to delivering top-notch services that keep you comfortable year-round. From installations and air conditioning repairs to custom HVAC fabrication, we do it all—fully licensed and insured for your peace of mind.

Comprehensive AC Services

Our range of services at Interstate Heating Co., Inc. includes:

• Air Conditioning Repairs: Not having your air conditioner working on the hottest of days in Wisconsin can be exasperating. Whenever you need an air conditioning repair, let our heating and cooling experts quickly remedy it for you.
• Air Conditioning Maintenance: Keeping your air conditioner in its best operating condition is your goal. You want your system inspected, cleaned, and tuned up on a regular basis to help avoid unexpected and costly repairs and breakdowns.
• AC installation and replacement: If your air conditioner has reached the point where repairs no longer do the job or your home's energy efficiency is at an all-time low, you may need a new system. When your Sussex, WI, home is ready for a new or replacement air conditioner, our Interstate Heating Co. professionals will install your cooling system without delay.

Why Choose Us?

At Interstate Heating Co., Inc., customer satisfaction is our top priority. Here’s why homeowners and businesses trust us:

• Fully Licensed & Insured: Rest easy knowing that our team is fully licensed and insured, ensuring that every job is completed safely and to the highest standards.
• Experienced Technicians: Our technicians are highly trained and experienced in handling all types of HVAC systems, no matter the make or model.
• Maintenance Program: Join our maintenance program to keep your HVAC system in top shape year-round. Members enjoy discounts on repairs and other exclusive benefits.
• Custom Fabrication: With our custom sheet metal fabrication services, we can design HVAC systems that are perfectly tailored to your home or business.
• Financing Options Available: We understand that HVAC repairs and installations can be costly. That’s why we offer financing options, including 0% interest for qualified customers.

Special Offers

We are always looking for ways to make your experience with us even better. Take advantage of our special offers:

• Referral Program: Refer a friend and receive discounts on future services.
• Rebates: Ask us about available rebates for energy-efficient HVAC system installations.
• Financing Options: We offer 0% interest financing for qualified customers. Contact us to learn more!

Schedule Your Service Today

Don’t wait until your heating or cooling system breaks down. Contact Interstate Heating Co., Inc. today to schedule your service. Our friendly team is ready to answer any questions and ensure that your home stays comfortable, no matter the season.