Your Local Heating & AC Experts

815-656-4458 | Freeport, IL






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

A962V

  • 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.


16 SEER

4SCU16LE

  • 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 Heatingstarstarstarstarstar4.9 / 5

46 Total Reviews Jansen Heating815-235-4373$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 PROFESSIONAL ACCREDITATIONS


Our Featured Products


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

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