Meet Steve · Owner

Meet the guy who’ll be in your home

Steve Janssen answers his own phone and does the work himself. Seventeen years of hands-on experience across heating, cooling, plumbing, and insulation. Veteran owned. No corporate “we.”

Call Steve today
5.0 from 55 Google reviews Veteran owned
Why Janssen exists

A father, a son, and a hammer

Steve started Janssen after his son told him, “Hey Dad, you’re really good at this. You might as well do that and make a good living for yourself.” Steve promised him he would.

His son was meant to work alongside him. Two years ago a drunk driver killed him. The hammer in the Janssen logo is in his son’s hand. Steve does this work to make him proud, and to do right by the people whose homes he works in.

  • The owner answers and does the work. The person on the phone is the person in your basement.
  • He explains, he doesn’t talk down. Steve sits at your table and walks you through the problem before he touches anything.
  • 17 years of hands-on experience across heating, cooling, plumbing, and insulation. Veteran owned.
Steve Janssen, owner of Janssen Heating Cooling Plumbing and Insulation, laughing on the job
In their words

What the neighbors say about Steve

“He fixed the issue, was super nice, and was patient in telling us what was going on. He sat at the table with us and we got to know him a little, and even my kids were laughing at his jokes. Super cool guy, down to earth, and fixed our problem. 100% recommend!”

Reya W. · Google

“Steven came out diagnosed our problem very quickly (Sunday). The following day (Monday) came out with the parts and fixed the issue in a timely manner. Very personable and very responsive customer service. Answered all questions and even tolerated our yapping dog, all with a smile.”

Erica W. · Google

“Steve is my hero! He showed up on time, explained my problems with the gas line, fixed it all for a SUPER price in 2 hours! I had 2 other bids from well known companies in the Wood River/Alton areas and they were $1200 higher than Janssen. Steve is the nicest guy, honest, and likes helping people. Call him, you will thank me later.”

Tracey B. · Google
Call the guy who answers the phone

Call Steve. You’ll talk to the same person who shows up

One local owner, 17 years, veteran owned. Fair quote, no pressure.