RACINE, WI — Keystone Heating and Air Conditioning Co., Inc., has been a fixture in the Racine community for a long time — since 1918, to be exact. That’s when William Challinor was installing giant gravity furnaces. He eventually sold the business to David Lonergan in 1937 for the steep price of $400. Lonergan eventually passed the business on to his son-in-law Lowell Katt, who passed it on to current owner and son, David Katt.
Katt owns the business along with brothers Marshall and Michael, and sister Colleen Miskovic. His markets include residential/light commercial installation and service, and new construction. Keystone serves the Kenosha-Racine area with 17 employees. The customer list includes thousands of residences, churches, drugstores, and “a ton of condos and apartments,” according to Katt.