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RJ Heating & Air Conditioning At RJ Heating and Air Conditioning, we take good care of our customers, and we love doing it. Greater Milwaukee-area families have been counting on our honest service for 45 years. They know that our employees are customer-focused and will go above and beyond to meet their needs. And when you call for service, we'll always address your top concerns upfront. We only hire highly skilled techs who put our customers first. Our experienced team includes a friendly office staff as well as technicians with CFC and NATE certifications.
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At RJ Heating and Air Conditioning, our HVAC business is a family affair-we are three generations strong under the leadership of Julius Hopfensperger. It started with Julius' grandfather, who owned his own HVAC business in Marinette. By the age of 10, Julius' father, Jules, was helping out with service and installation whenever he wasn't in school.
Replacing a heating system is a big deal but when it's done correctly, you won't have to worry about home comfort for a long time. Furnace installation by RJ Heating and Air Conditioning is always done right-from precise measurements to perfect fittings and professional setup of every component of your new system.
As a homeowner, investing in furnace maintenance is one of the smartest things you can do. At RJ Heating and Air Conditioning, we know just how important it is-which is why signing up for our Comfort First Membership and having us service your system is the best choice of all. See why we're the number one team for furnace tune-ups in the Greater Milwaukee area below, and call 414-463-1140 to become a Comfort First member or to schedule an appointment today.During service, our experts give your heating system a complete diagnostic check.
Not all HVAC companies are created equal, and RJ Heating and Air Conditioning is proof of that. Being able to fix a furnace is important but knowing how to take care of people is what sets us apart. We understand that losing heat and being cold in your own home make for a stressful situation, so we have you covered during business hours (of after-hours if you're a Comfort First member) with expert furnace repair and exceptional customer service. We go above and beyond to make sure everyone we work for wants to work with us again.
Reviews (11)
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Kathleen Hermann
Jun 13, 2022
Excellent customer service. The three gentlemen who came to install my new AC unit were extremely efficient, courteous and knew exactly what they were doing! Recommend using RJ Heating and Air Conditioning! Very satisfied! Will use them for all my heating and air conditioning from now on! Service: Install AC
Max Cross
May 16, 2022
I moved in to a new house with a furnace installed by RJ HVAC. The furnace has died 3 times throughout the winter and is now leaking. I just spoke with the owner and he yelled at me. I haven't even dealt with the company I was just looking to see if we could schedule a service. I would literally rather leave a 1 star review and pay to fix it then deal with whatever that was.
Lorenzo Cabrera
Apr 20, 2022
The team at RJ heating was absolutely phenomenal. From Julius coming out to quote how much the project was going to take, to the team finally coming over and installing the a/c--I can't speak enough good things about them. We initially planned on installing the a/c towards the end of last year, but we couldn't make it work with the team's schedule due to all the furnace repairs necessary.

As promised, I got first priority this year and they came through. They even helped me with closing up an additional vent in the basement, at no additional charge. All in all, would definitely use them again! Don't hesitate. Reach out to them!
Sara Roeder
Apr 19, 2022
I would give RJ heating 100 stars if I could. I have been using them for over 25 years and have made tons of referrals. My friends and family that have used them have also been so happy with this choice. Many get multiple estimates and RJ heating is always chosen. Not only is the quality of there workmanship excellent but their installers are friendly and informative. I have used them on my personal residence in Brookfield as well as my rentals all over Milwaukee and West Allis. They have saved me many times. They really are the best!
Lisa Ettienne
Apr 04, 2022
The service was great they were on time and was great at teaching me about the system. Especially how to change the filter and the frequency it needs to be changed. They will definitely get my business if I decide to put in central air. Great business to work with.
Nancy Galloway
Feb 04, 2022
As always, great service. It's great to have heat in our basement. They installed a heat vent and cold air return. We thought we could get by with an electric fireplace. Installing the heat vent in the basement was the best thing ever. When we bought our condo 3 years ago, they installed a new furnace and central air conditioning unit. I would highly recommend!
Josh Thomas
Nov 20, 2021
RJ Heating installed a new air conditioner for me this past summer, while on-site they adjusted my heating/cooling ducts to help the air better flow. They did a great job and could not have had better customer service. Several months later my thermostat stopped working with a power error, I was unable to turn my heat on with cool weather in the low 30s on the horizon. Julius personally came out and was able to resolve the issue. RJ Heating's exceptional customer service is what sets them apart from their competitors and, based on my experiences, it is safe to say RJ Heating has gained me as a customer for life.
Marguerite Egner
Nov 17, 2021
The two technicians were very informative and encouraged me to check the new system so I could ask questions. They were thorough in showing me how my new furnace and AC work. The work they did was meticulous. Services: HVAC duct & vent installation, Heating system installation, Install AC, Install thermostat
Paul Grant
Jul 30, 2021
I have used RJ Heating over the years at several properties. I have had Central Air installed at one, repaired at another and a couple of furnaces installed. The most recent was to convert from an oil tank heating system. The team did an outstanding job removing the old tank and furnace and then installing the new one on time and on schedule. Thanks again RJ Heating and Air for your great work!
Cody B.
Jun 12, 2021
Called them with an issue and they were very responsive. I called them same day and they were booked but stated they would get me in first thing in the morning. They even gave me tips to resolve my issue without them. At about 830 I get a knock on the door and they came by same day. They exceeded my expectations!
Beth Tinsley
Feb 04, 2021
The folks at RJ Heating and Air Conditioning are the BEST! The owner himself, Julius, helped us pick out the right furnace when it was installed years ago and took the time to answer all of our questions. We just had the need for a repair and they handled it beautifully! The person that took my call was able to fit me into the already busy schedule, and the technicians were right on time!

They diagnosed the issue and had the part ready for installation in a day! Joe came to install it and had the furnace good as new in no time! He was right on time, friendly, was thorough to make sure the issue was resolved, and did a great job! Thank you, RJ Heating and Air Conditioning!