About Us

For decades, Gross Heating & Air Conditioning has been earning the trust of area homeowners and keeping families safe and comfortable.

Contact Us

This form is monitored during regular business hours, and a member of our team will contact you to confirm your requested appointment. If you have an emergency, please call 262-783-6000.

Maintenance Agreements

Maintenance agreements from Gross Heating & Air Conditioning are designed for your peace of mind. They’re a great way to reduce or eliminate unexpected repair bills, ensure top performance, save money, and prolong the life of your equipment.

$100 Refer-A-Friend Program

Love Gross Heating? Tell your friends and family about us and you’ll get $100 cash back when they have a furnace, AC, or boiler installed. Have a lot of friends and family? That’s great because there’s no limit! Ask for details.

Our Family Treats Your Family Just-Right

Gross Heating was founded by William Gross as a coal and oil business in 1925. After William died in the 1940s, his brother took over, but soon realized it was not for him and began looking for another “family” member to buy the business. That family member was employee, Mike Ruesch. The legacy was passed to Alan Ruesch, Mike’s son, in 1996 and the company continues to flourish under his leadership.

At Gross Heating, our employees are family. And we know our customers feel the same way. If you look at our customer testimonials, many of our team members are mentioned by name and that’s important to us. There is no one person that is the “face” of Gross Heating—that’s what sets us apart from other companies.

Our Core Business Is Quality Heating and Cooling Installations

Our work goes far beyond basic residential and commercial heating and cooling systems. We can install any type of energy-efficient indoor comfort system, whether it’s for new construction or an existing building which has outgrown its capacity. We install quality Carrier® products that feature all the latest technologies—and have a full inventory of parts for 24/7 emergency service on all makes and models of systems. No matter your comfort needs, count on our pros here at Gross Heating.

As Milwaukee and its suburbs grow, trust our employees—the face of Gross Heating & Air Conditioning—to keep pace with your heating and cooling needs and bring you innovative ideas that work. Alan Ruesch

Owner, Gross Heating & Air Conditioning

Four Reasons to Choose Gross Heating

  1. Comprehensive Design

    We evaluate the layout of your space, listen to your concerns, and then design a comfort system that fits both your space and budget.

  2. Experienced Team of Professionals

    Our staff doesn’t sell, they listen. We will help you select the right heating, cooling, and indoor air quality products for your needs.

  3. Quality Installations

    Proper installation is key to ensure that your unit works correctly. We supervise every phase and test your system to guarantee your satisfaction.

  4. 24-Hour Emergency Service

    We know emergencies happen at the worst times. Call our service department any time, 365 days a year, for assistance with your equipment.

Gross Heating & Air Conditioning

3260 N. 126th Street

Brookfield, WI 53005

Phone: 262-783-6000

24-Hour Emergency Service Available

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