Serving both Residential and Light Commercial customers SJ Kowalski Inc is ready to help you. S. J. Kowalski, Inc. has been serving the heating, air-conditioning and plumbing needs of the greater Hazleton and surrounding areas since 1972. We install high-quality equipment from today's industry leaders like Trane, Mitsubishi, Rinnai, Honeywell and Triangle
Mary —
Great service wouldn't hesitate to use them. Installed my heat pumps did an excellent job