Sioux City IA

1715 4th Street
Sioux City, IA 51101
Phone: (888) 557-6045
To speak with a Sales Comfort Advisor, ask for Scott Cleveland or Evan Green

Office Hours

Monday – Friday 8:00AM – 5:00PM | Saturday 8:00AM – 12:00PM

Don't forget - we offer 24/7 service, so call us anytime you need help!

Kalins Indoor Comfort is celebrating over 95 years in business as a third generation family-owned company.  We are very proud to be a member of the Sioux City community for all these years. We strive to be a contributing member of the community and our thankful to all of our customers who have allowed us in their homes.

Call us for all your Heating and Cooling needs including; Fireplaces, Indoor Air Quality, Whole House Diagnostic Services and Aeroseal Duct Sealing. We also service all makes and models 24/7.

Don't forget to call us for a Furnace Tune-Up so you can be ready for that winter cold as all manufacturers recommend annual maintenance. A system check ensures your equipment is operating safely and saves money by maximizing efficiency and minimizing costly breakdowns. So, don't delay call today for an appointment.

  • Residential Heating and Cooling - Sales and Service
  • Commercial Heating and Cooling - Sales and Service
  • Indoor Air Quality Systems
since 1921
  • Whole House Diagnostic Services
  • Retail Fireplace - Sales and Service
  • Aeroseal Duct Sealing
Our Locations

Sioux City, IA – serving the Siouxland area
Vermillion and Yankton, SD – serving Southeast South Dakota


We accept most major credit cards and offer financing with approved credit.