Let CSI be your comfort solution!

Comfort Systems, Inc. is a full-service plumbing, heating, and air conditioning contractor based in St. Peter, Minnesota. As a well-established HVAC and plumbing company, we strive to provide you with the products, industry knowledge, and professional services you need to make informed decisions for your home or business. Our certified, trained and courteous air quality specialist, HVAC technicians, and office personnel operate with over 100 years of combined industry experience.


Our mission at Comfort Systems, Inc.


We want to provide you with quality products, material and exemplary service. We are committed to this philosophy, and will continue to expand our heating, air conditioning and indoor air quality knowledge as technology in our industry continues to change.

We will provide you with quality equipment, material and service, which will prove itself time after time. The mechanical system in your home is a true investment in your future. We believe if we put quality in, you will get quality out year after year.

This is a single family home that is new construction cottage style house with hardy board and a partial metal roof. It is grey with a teal door and there is great curb appeal. The house has a double front entrance and it is on a large lot.

While there are many heating and cooling contractors in Southern Minnesota who can sell you a furnace or air conditioner, they cannot always back that up with solution-oriented experience.

The difference at Comfort Systems is that we’re not out to simply sell you a piece of HVAC equipment, we’re in the business of tailoring solutions to your home and family needs. We take the time to consult with you, to learn your home comfort needs and to put together a heating, air conditioning or indoor air quality system that will meet your budget and make your home more comfortable.

Throughout the year’s products have changed, service requests have changed, and the Minnesota market has changed, but our commitment to providing the best services to our customers remains the same.

Comfort Systems Inc Logo

Our heating, air conditioning, air quality and plumbing services include:

  • Residential & Commercial Applications
  • Plumbing – Repairs, Installations, Sump Pumps, Water Heaters, etc.
  • Heating – Furnace & Boiler Installations, Repairs, etc.
  • Air Conditioning – Installations, Repairs, Upgrades, etc.
  • Indoor Air Quality Testing & Solutions
  • Radon Testing & Mitigation Services
  • In Floor Heat – Installation, Repair, etc.
  • Geothermal Heating & Cooling Systems – Design, Installation, Repair, etc.
  • On-Going Maintenance Plans
  • Free Estimates
  • Sheet Metal Fabrication

Now hiring installers and service techs

Stop in for a job application today!