Air Conditioning Service 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 an AC Tune-Up so you can be ready for that summer heat as all manufacturers recommend annual maintenance. Regular AC and heating maintenance 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.