In the Community

Kalins Indoor Comfort has a long history of supporting the communities that we serve, whether it's supporting the United Way, Humane Society, Chamber of Commerce, Rotary Club, Children’s Miracle Network, or local Little Leagues. We also encourage our employees to volunteer with an organization that is close to their heart.





  • 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.