Commercial Services

Operations and Maintenance

A properly working HVAC system is crucial in a commercial property. To ensure your system works at peak efficiency and to quickly address any problems, the Kalins team offers full-service maintenance and dedicated staff.


We provide full and partial HVAC system replacement, as well as brand new ground-up installations. Email our Installation Manager Steve at for any installation estimates or questions. In Vermillion, contact Todd Nelson at

Is it time for a new heating and cooling system in your building? We specialize in retrofitting buildings with the latest HVAC systems. Or maybe you're in need of heating and cooling installation in your new building. The Kalins team has the experience and knowledge to meet your exact specifications.


The last thing you want as the owner of a commercial building is for the heating or cooling system to stop working. We strongly encourage everyone to take a proactive approach and have your systems regularly inspected and maintained. This will ensure your systems work efficiently and will end up saving you money in the long term. We offer maintenance plans for all business needs.

Advanced Technology and Efficiency

You can get 30% energy efficiency savings in offices up to 20,000 feet with new HVAC systems. Ask us about the latest technology for your particular needs.

Duct Work

We can repair and/or replace your existing ductwork.

  • 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.