“Essential” Gross Heating Is Open for Business
An Important COVID-19 Notice for Homeowners

As an essential business, Gross Heating & Air Conditioning is still open and ready to help you with your heating and cooling needs. Our team wants to assure you that we are doing everything we can to keep you and our staff safe and healthy during this time. Follow the link below to see what we’re doing to help stop the spread of COVID-19 (coronavirus), as well as what you can do should you need our heating and cooling assistance.


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Gross Knows Blog | Recent Posts

What You Need to Know About Replacing Your Air Filter

There’s a lot that goes into choosing a new air conditioner. From deciding between ductless and central AC to unit sizing and system speed, it can seem overwhelming.

For Just-Right Comfort, Trust the HVAC Experts at Gross Heating & Air Conditioning

If you’re looking for ordinary heating and cooling service, you may start with an internet search, compare online ratings, or simply choose the first company offering a discount on HVAC service. But if you want extraordinary home comfort care, ask around—only a real person can tell you about personal service. And in the Brookfield and Metro Milwaukee area, people will tell you that Gross Heating & Air Conditioning is the company you can trust for quality installations, repairs, maintenance, and more.

Brookfield and Milwaukee Suburbs Turn to Gross for the Most

For the most value, the most experience, and the most dependable products, home and business owners in your area have been relying on Gross Heating since 1925. We service virtually all makes and models of heating and cooling equipment, but we’re proud to recommend Carrier® for years of reliable, energy-efficient comfort. Gross Heating has been recognized as a top Carrier Factory Authorized Dealer, meeting the industry’s most rigid training and service standards. In fact, the vast majority of problems we see in homes and commercial facilities are due to improper installation, so all our technicians undergo continuous training and are NATE- and EPA-certified.

100 Percent Satisfaction Guarantee on All Furnace and AC Services

We offer all of our customers a 100 percent satisfaction guarantee. If, for any reason, you are not happy with your Carrier equipment within one year of installation, we will repair, replace, or refund your money.

In the heating and air conditioning business, trust is vital. For over 95 years, the Gross Heating family has helped homeowners and businesses stay comfortable, no matter the weather. We know that every call we take and every job we perform is an opportunity to build a long-term relationship with a customer, so we treat everyone like family, from start to finish. We’re proud of the awards we’ve earned from Carrier and Angie’s List, and of our 5-Star rating on Google, but for us the greatest honor of all is simply a referral from a happy customer.

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.


For warmth when you need it, trust us to install, service, repair, or replace your furnace, boiler, or alternative heating system. Call us if you have an emergency, or for maintenance that prevents problems.


Don’t be phased by hot days—Gross Heating installs and repairs air conditioners and heat pumps to put you in control of your comfort. With regular maintenance, we’ll also help you control cooling costs.

Air Quality

Our experts can test indoor air quality with AirAdvice for Homes, then recommend air purifiers and other products to clean your air and control humidity. Ask us about programmable thermostats and CO alarms, too.

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Gross Heating & Air Conditioning
3260 N. 126th Street
Brookfield, WI 53005
Phone: 262-783-6000
24-Hour Emergency Service Available
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