Fleming Heating & Air Conditioning Your HVAC Experts Proudly serving Northern IL and Southern WI

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HVAC Solutions for Northern Illinois & Southern Wisconsin

Expert Service Since 1964

For over 60 years, Fleming Heating & Air has been the Southern Wisconsin area’s go-to team for expert HVAC services. Whether it’s your heating unit that breaks down in the middle of a frigid winter or your AC malfunctioning during a heat wave, Fleming is the team to call for help. Our HVAC services run the gamut, including repairs, installations, and maintenance for both AC and heating units; we also offer boiler installations and repairs.

Fleming’s indoor air quality services will boost the air you breathe in your home and reduce the amount of allergens, such as dust and pollen. If you suffer from a constant cough or headaches at home, ask us about what our IAQ services can do for you.

By choosing Fleming, you also choose 24/7 emergency services, NATE-certified technicians, and affordable maintenance plans to keep your HVAC working all year round. We also have financing plans so that you can get the results you want today while paying later. And as a certified Lennox Premier Dealer, you can rest assured that we only provide the best equipment.

With two locations in Northern Illinois and Southern Wisconsin, we’re ready to help our neighbors when they need us! You can also visit our store online to purchase the parts you might need, including air filters and HVAC units. Reach out today to the number one team in the area for expert solutions! 

Contact Fleming Heating & Air online or give us a call at your convenience!

What To Expect

Discover the Fleming Heating & Air Conditioning Difference

24/7 Emergency Service
Trusted Local Experts Since 1964
Over 20,000 customers serviced
NATE-Certified Technicians
Certified Lennox Premier Dealer
Affordable Maintenance Plans
Easy Financing Options Available
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WE OFFER FINANCING

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Our Offers

Save on your service today

Receive up to $2,000 in rebates

when you purchase the Lennox® Ultimate Comfort System OR qualified buyers make no payments, incur no interest for 12 months** when financing a new Lennox® system Redeem Offer Expires 09/30/2025

Labor Warranty

Two-year labor warranty with purchase of furnace and air conditioning. Redeem Offer Expires 09/30/2025

Maintenance Check

Call us for a maintenance check today! Redeem Offer Expires 09/30/2025

Receive up to $2,000 in rebates

when you purchase the Lennox® Ultimate Comfort System OR qualified buyers make no payments, incur no interest for 12 months** when financing a new Lennox® system Redeem Offer Expires 09/30/2025

Labor Warranty

Two-year labor warranty with purchase of furnace and air conditioning. Redeem Offer Expires 09/30/2025

Maintenance Check

Call us for a maintenance check today! Redeem Offer Expires 09/30/2025
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Our Reviews

See What Your Neighbors Are Saying

We needed a new furnace. Called several places and never received a phone call back. I ended up calling Fleming and spoke to Jason. All I can say is WOW! He came over the same day to take a look at it. Left that night and…

Christina C.

Christina C.

Came out same day, fixed my problem, explained my system, and fair honest pricing.

Gabriel I.

Gabriel I.

My furnace quit working even though my furnace was over 10 years old I determined it needed a new circuit board so I bought one called Fleming as soon as I received my circuit board made an appointment service technician showed up on time installed my…

Kevin W.

Kevin W.

Good service, got to me quickly and got ac running.

Isaame H.

Isaame H.

Was without heat for 4 days waiting for another company to come out called Fleming and they were there the next day when they said they would. Jody was the man who came out and did a excellent job. Very great service very reasonable prices. Thank…

Kevin B.

Kevin B.

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Learn More About Our Company

Celebrating 60 Years Of Partnership With Lennox
Celebrating 60 Years Of Partnership With Lennox

We’re happy to announce that we are the proud recipient of the Lennox Industries Years of Partnership Award which, in the words of the presenters, “honors Lennox dealers who have demonstrated a long-term commitment to the Lennox brand, as well as to strengthening the value of their own; whose success, growth, and endurance are a testament to the drive to serve their community, their customers, and their employees; and who, as Lennox brand ambassadors, give meaning and dimension to the Lennox brand promise.” And we in turn thank customers like you for the support you’ve given that has made this award possible.

Lennox Premier Dealer

As a Lennox® Premier Dealer™, we’re among the best of the best. Our specialists can handle any HVAC problems you’re facing. Our techs are educated to deliver an outstanding degree of comfort and service that exceeds your requirements. We’ll take notice of and handle your home comfort needs. And ensure you’re totally satisfied. Because we’re an associate of the leading brand name in home comfort, we have some of the best energy-efficient solutions you can buy.

Proudly Serving Northern Illinois & Southern Wisconsin

Belvidere, IL | Caledonia, IL | Capron, IL | Cherry Valley, IL | Garden Prairie, IL | Loves Park, IL | Machesney Park, IL | Poplar Grove, IL | Rockford, IL | Rockton, IL | Roscoe, IL | South Beloit, IL | Beloit, WI | Clinton, WI | Sharon, WI | Shirland, WI

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