I have always had problems with hiring this company from the boiler that was installed some years ago (Jim Silver is a out right liar and thief), to the service that was preformed on my equipment, and so on. The work always resulted in multiple problems, multiple visits by employees, and multiple bills sent to me. I would not recommend to anyone that you call Roger Gundlach for installation of equipment or service work. I now use another well known local company. DO NOT CALL GUNDLACH SHEET METAL WORKS INC OR ROGER GUNDLACH. Steve W.