About Sisler Heating & Cooling, Inc. Your Premier Geothermal Source in Northeast Ohio. You can count on Sisler Heating & Cooling, Inc. for all your WaterFurnace geothermal heating and cooling system needs, including ... planning assistance complete comfort system installation routine service and maintenance emergency repair energy-saving advice and consultation Our fully trained professional staff is dedicated to the complete satisfaction of customers throughout Medina. After all, you've chosen the finest heating and cooling system available. We make sure that system continues to live up to your expectations, improving your home's efficiency and helping you cut energy costs. Denny Sisler, the owner of Sisler Heating & Cooling, Inc. began working at a young age for Ty’s Heating & Cooling in Valley City, Ohio. Soon after, he realized that the heating and cooling field was something that could always be needed and decided to start his own company in 1979. He started with a two man operation and did heating and cooling in many new construction homes throughout Medina County. His business thrived well enough that in 1994 he was actually able to purchase Ty’s Heating and Cooling. Since then Sisler Heating & Cooling, Inc. has become one of the most well-known heating and cooling companies in northeast Ohio and one of the top Waterfurnace geothermal installers in not only Ohio but throughout the United States. Contact Sisler Heating & Cooling, Inc. today to get a free estimate and a cost savings analysis for your home.