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We offer heating and cooling solutions for all age homes, including ductless systems which are perfect for homes without ductwork. 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.
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For decades, Gross Heating & Air Conditioning has been earning the trust of area homeowners and keeping families safe and comfortable. 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.
This monthly blog is a great resource for homeowners who need expert advice on heating, air conditioning, and indoor air quality services. At the heart of our business is this motto: "The customer always comes first." And we want to be the first company you turn to when you need help at home, so we've created this blog as a resource for information on everything from furnaces and boilers to thermostats, humidifiers, radon mitigation, and more. Our professionals share the latest industry news, home comfort advice, tips, and more.
When it's time to shop for a new heating system, you can consult your family, friends, and neighbors for advice. But they'll all tell you the same thing-the experts at Gross Heating & Air Conditioning are the best around when you need a furnace installation. We're proud to install Carrier furnaces, the number one comfort brand that Brookfield homeowners count on.
Whether your furnace is making funny noises or not working at all, call us for reliable repairs. If your heating system makes funny noises or stops working, it doesn't necessarily mean you need a complete furnace installation. Instead, call Gross Heating & Air Conditioning for expert furnace repair.
Reviews (9)
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Maureen Albrecht
May 28, 2022
I had an entire new gas furnace, AC and humidifier installed by Gross last week. I had used this company for my hvac maintenance for years so when it came time to purchase a new system I knew who I could trust. Brad, James and Bill arrived on time and actually finished early, I don't think they even took a break. They were friendly and made sure I knew how everything worked before they left. Everything was installed professionally and cleaned up/ disposed of when the work was completed. I am very pleased. I highly recommend Gross!
Julie K.
May 08, 2022
Radon fan / motor needed replacing - 2022. Gross came out in January and evaluated the situation. Charge was $99 for 15 minutes of evaluation. In March, the same technician returned to complete the work. Despite him documenting what was necessary for the job (which I had a copy of) he came unprepared. He did not have the correct materials to do the work.

A few moments after arriving he declared he could not do any of the work. Additionally, he did not bring a replacement gauge (again, this was written on the initial assessment paperwork). The gauge normally displays a colored oil to indicate the unit is working. He suggested that I instead put water in the existing gauge and re-fill it every few months. Personally never using Gross again. Very poor experience.
Meg Wautier
Apr 09, 2022
Outstanding professionalism and very prompt with any and all communications. I absolutely recommend Gross Heating & AC! Jeff was absolutely kind in providing me with an invoice from nearly 2 years ago when I needed it for my records. Overall I have been extremely pleased with my experiences and will be recommending to friends and family.
Rob Lemberger
Mar 26, 2022
After getting other quotes and talking to Jerry, who is one of the owners, our family recently had our 20yr. old Carrier furnace with a zoning system replaced by Gross Heating & Air Conditioning the other day. Mike K, Colton, and James were my installers who were on time and very professional. The process of replacing the furnace was like clockwork and was amazed how efficient they were.

The attention to detail was meticulous with a high quality of work and clean up after they were done. We were very pleased with the entire process and would highly recommend Gross Heating & Air Conditioning to others. There are no extra or hidden costs and they can answer any questions you have with honest assessments. Great job!
Paul Porter
Jan 17, 2022
Jeff has about 40 years with the company. He knew what system was best suited for our home. Jessie has over 20 years with the company. He and and the team did an outstanding job on the Boiler replacement. Our old system was 62 years old when it died. At the end of the install and during the initial system startup, we had a frozen pipe burst. It happens. Jessie made a call and extra vans showed up and repaired it within hours. The people working for this company are great.
Andy Brooks
Jan 07, 2022
The company I work for used Gross to convert from a rooftop unit to an indoor unit using the existing ductwork. The team of guys that came through were great and they did some very impressive work! I highly recommend them for any of your HVAC needs! Service: Heating system installation
William Reid
Dec 13, 2021
Good, honest folks. They recently installed a new residential boiler in our 97 year old house. Gross heating did an excellent job on the install and worked through all the issues associated with updating a major system in an older home. They are extremely knowledgeable and very experienced. Nice, honest folks that I am glad I get to work with.
Michael Michaud
Nov 07, 2021
I am very happy with the install of my furnace and AC from Gross Heating. The entire experience from sales to install was extremely professional. The install was nice and clean, the electrical subcontractor did great work, and the entire job areas was cleaned up after they were done. After the install was complete I had a couple of questions that were answered promptly by the office staff. I highly recommend Gross Heating.
Dan Johnson
Oct 08, 2021
Had, what I consider, a large installation in a Milwaukee bungalow. Full furnace and AC unit replacement, which included three Mitsubishi units in the upstairs. Even with the shortage of AC units due to the sudden heat wave in the Northwest, Gross did a fantastic job, kept me in the loop of any changes and the install crew couldn't have been better.

Estimate was the total cost - no upcharges, changes, etc. and installers took the time to walk me through any decisions as they came up. Some companies say they will treat you like family. Gross Heating ARE family. My 5 year old grandson still asks when those 'nice guys' are coming back. Best endorsement I can ever give. Summary - Didn't deviate from estimate.

Great installation with great care. Communicative and always kept to their promise. Great crew, who treated the house like it was their house and fantastic interactions. HIGHLY recommend!