FURNACE INSTALLATION & REPLACEMENT
Book Your Furnace Replacement or Install Today

Heating your home is a major undertaking, and with so many options on the market today, choosing between one major brand and another can be an overwhelming decision.

When it comes right down to it, furnaces manufactured today utilize the same safety features, controls, heat exchangers and even offer similar choices of efficiency. The difference between manufacturers isn’t going to guarantee superior heating or lower utility costs. The greatest influence on the efficiency, operation, and longevity of your furnace comes down to installation. You need a reputable, experienced and conscientious contractor. You need Jansen Heating, Air Conditioning & Electrical.

Our certified technicians don’t cut corners to get the job done quickly. For us, it’s not just about efficiency and customer satisfaction, but safety as well. We take the time to check to see that your ductwork is clean and unclogged, and the proper size for your new furnace.

Jansen Heatingstarstarstarstarstar4.9 / 5

46 Total Reviews Jansen Heating815-235-4373$4341 Rolling Hills Lane , Freeport IL


We install Armstrong Air high-efficiency furnaces.

From high-efficiency gas valves and two-stage heating to the patented EHX™ Technology, Armstrong Air gas furnaces use advanced designs to bring more to every home.

Other Furnace Services We Offer

Armstrong Air Furnaces

Armstrong Air Furnaces

click the Armstrong Air logo above to explore our furnace line-up

Why Choose Jansen to Install or Replace Your Furnace?

The team at Jansen Heating, Air Conditioning & Electrical will prioritize the proper size measurements on sheet metal fittings to connect your new furnace. And we will be around in ten plus years when you’re counting on seasonal maintenance and competent repair work. We’ve built our family-owned business on referrals from satisfied clients, and are proud to uphold a commitment to superior installation and service.

At Jansen, we can often complete your installation the next day. Our installation teams are clean, fast and efficient.

Along with our flexible scheduling, prompt job completion and top-notch service, we also offer a 2-Year Labor warranty on top of Armstrong Air's manufacturer 10 Year Lemon & 10 Year Parts warranties.

New heating equipment is a major investment. Make it a smart investment. Call the professionals from Jansen Heating, Air Conditioning & Electrical. Heating homes in the Freeport, IL area is our business and keeping our customers perfectly comfortable is our focus.

Our team delivers personal attention to every installation and replacement, guiding you through each stage of the process, from choosing the size and features of your ideal furnace to explaining warranty coverage and providing yearly maintenance. Our comfort technicians strive to minimize disruption to your home and property, keeping the job site neat and tidy, and going above expectations to fulfill your expectations. For a free estimate on new equipment installation, call Jansen!

Schedule Furnace Installation or Replacement

Our Commitment to You

That Our Competition can't Match


100% Money Back Guarantee

Satisfaction Rating of 9.9 out of 10

We complete and submit for ALL REBATES


A Jansen employee (not an answering service) will answer the phone, someone is always on call

We submit ALL WARRANTY information on your behalf

Our Technicians are NATE Certified (completed training and passed examination to confirm their competence) which allows an exceptionally high degree of troubleshooting skills


We analyze your home as a complete system with Building Performance Institute (BPI) protocols, giving us insights on how to improve your home efficiency

We offer a proprietary cold air duct design that increases airflow - lengthening the equipment life

Digital set back thermostat included with every installation (valued up to $550)


We recover and recycle ozone depleting refrigerants

We pressure nitrogen check air conditioner refrigeration lines and evacuate below 500 microns for system longevity

We complete an R-Calc for all jobs to ensure proper sizing (70% of systems installed are NOT sized correctly)


Our Commitment to You from the Jansen Family.
Jeff, Owner

Jeff Jansen, Owner of Jansen Heating, Air Conditioning & Electrical


We Offer Services in Freeport, Winnebago, Pecatonica, Lanark, and Lena Illinois

Click below to see the services we offer in your area.