Keeping the Greater Fairfield Area Comfortable for Over 45 Years

Giesy Heating & Cooling LLC was founded in 1976 by Larry Giesy. Since then, they've grown to be the HVAC company that residents in the Lancaster, OH, area trust for all their heating and cooling needs. You can count on this local company for exceptional installation and repairs of furnaces, air conditioners, humidifiers, and air cleaners.

Being a family-owned and -operated business, Larry's son Doug now runs Giesy Heating & Cooling, carrying on the tradition of trustworthy and reliable service that the company was originally founded on.
Winter, spring, summer, or fall, we proudly serve the comfort needs of customers throughout the Lancaster and Greater Fairfield area. We do it all, from furnace and air conditioning repairs to installation of brand-name heating and cooling systems.