commercial workA 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 Indoor Comfort team offers full-service HVAC repair, maintenance, and replacement services in Sioux City, IA; Vermillion, and Yankton, SD.

    Design & Installation

    Is it time for a new heating and cooling system in your building? We specialize in retrofitting buildings with the latest HVAC systems. We provide full and partial HVAC system replacement, as well as brand new ground-up installations. The Kalins Indoor Comfort team has the experience and knowledge to meet your exact specifications.

    Contact our team for any installation estimates or questions!

    For Sioux City installation estimates or questions, ask for Installation Manager Steve.
    For Vermillion installation estimates or questions, ask for Todd Nelson.

    Contact Us


    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 their 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.

    Duct Work

    We can repair and/or replace your existing ductwork.