Cosby Heating and Cooling is your premier HVAC partner serving the Mount Vernon, OH area with dedication and expertise. As a family-owned and operated business, we take pride in delivering top-notch heating and cooling solutions, ensuring the comfort and satisfaction of our community.

Lapp Heating and Cooling is a locally owned and operated heating and cooling small business that has been serving Knox County for over 40 years. We are committed to providing comprehensive heating and cooling comfort solutions to all of our customers