When You Want Comfort… You Want Kalins!

Welcome to Kalins Indoor Comfort. For 95 years and three generations of family ownership, we offer reliable, quality services and take pride in providing the highest levels of client satisfaction. 

  • 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 to qualifying customers.