Established in 1928, William Perotti & Sons Inc. is a plumbing, heating and air conditioning contractor. Based in Canaan, Conn., the company provides a wide array of services, such as duct cleaning, drain snaking, water treatment as well as conditioning, water pump systems, sheet metal fabrication, solar hot water systems and radiant heat systems. In addition, it offers geothermal heating and air conditioning as well as water conservation. William Perotti & Sons Inc. also responds to no-heat/water emergency calls.