About Us

For decades, Gross Heating & Air Conditioning has been earning the trust of area homeowners and keeping families safe and comfortable.
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Exceptional Service From Your Neighborhood Heating and Cooling Guys

When Alan Ruesch retired after more than 40 years at Gross Heating & Air Conditioning, he left the business in the very capable hands of long-time employees Jerry Nee and Joe Mechanich. Jerry has been in the industry as a service technician for more than 27 years—25 of those with Gross—while Joe has 24 years of experience as a service tech and installer, including 10 years as a Comfort Consultant.

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 and also a Gross team member, in 1996 and the company continued to flourish under his leadership for almost 25 years. In early 2019, Alan retired and sold the business to Jerry Nee and Joe Mechenich.

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.

Gross Heating & Air Conditioning Trucks
We’re so proud to carry on the legacy that Alan Ruesch created. And we certainly couldn’t do it without our incredible staff. To be able to continue the same great service that you’ve counted on for years with the same friendly voices on the phone and the same experienced techs you already know and trust, it’s amazing.
Joe Mechenich

Co-Owner, Gross Heating & Air Conditioning

It’s an honor to take over. From starting at Gross in 1996 working for Myron, then learning from Alan and now being in the position to continue taking care of the customers that they built such strong relationships with, I couldn’t be more grateful to lead this company along with Joe.
Jerry Nee

Co-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.

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.

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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.

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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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