OTS Engineering Ltd. is an engineering company specializing in mechanical services for buildings including commercial, institutional, industrial, and residential. Our area of practice is primarily in the Ontario counties of Durham, Northumberland, Hastings, Peterborough, Victoria, and the Highway 401 corridor from Belleville to Kingston, we have taken on projects in other parts of Ontario, British Columbia, Alberta, Saskatchewan, the United States, and other places in the world. The company, formed in 1986 as a partnership and later incorporated in 1988, has resided at the current address since 1989. Electrical engineering services are provided through our many associates.