Your Local Freeport, IL
Heating & AC Experts


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Join Jansen's Safety & Efficiency Agreement Today

What are the Benefits?

Priority Service
which means you get moved to the front of the line of all non SEA customers when you have an emergency repair.

15% Discount
on all labor and parts for any and all repairs.

Never Pay Overtime
this means you can call us anytime during the day, night or weekends and you’ll always pay normal rate.

Learn More & Sign Up

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

96% AFUE


  • 96% AFUE Efficiency Rating
  • Two-Stage Heating
  • Variable Speed Fan Motor
  • Comfort Sync Compatible
  • ENERGY STAR Certified
Explore Furnaces

Rather than being “all on” or “all off,” your furnace can adjust its heat output based on conditions inside and outside your home. So you use less energy to maintain comfort.



  • Up to 16.0 SEER Efficiency Rating
  • Single-Stage Scroll Compressor
  • ENERGY STAR Certified
  • Heavy-Duty Compressor Blanket
Explore A/C

Armstrong Air's reliable single-stage compressors are made from quality materials that are built to provide you year-after-year comfort.

There’s a perfect choice for you.

The Armstrong Air product family includes a smart, efficient solution for every home.

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Jansen is your local heating, cooling and geothermal service expert! We are your answer for prompt, professional maintenance, repair and installation for your heating, cooling and electrical systems! Call Jansen when you are in need of maintenance, repair or installation!

  • Furnace Service, Repair, & Installation
  • Air Conditioning Service, Repair, & Installation
  • Mini Split Service, Repair, & Installation
  • Geothermal Heat Pump Service, Repair, & Installation

Mitsubishi Elite Diamond Contractor

Jansen Heatingstarstarstarstarstar4.8 / 5

120 Total Reviews /files//jansen-logo.png815-235-4373$4341 Rolling Hills Lane , Freeport IL

As a top ten dealer we offer the following warranty
(this is above and beyond the manufacturer)

Armstrong Air President's Club
10 Year No Lemon
10 Year Parts
2 Year Labor

Mitsubishi Elite Contractor
12 Year Parts
3 Year Labor

Ruud Pro Partner
10 Year Parts
10 Year No Lemon
1 Year Labor


Our Featured Products

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

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