In 1974 Peter Minialoff took over the manufacturing business of Spiral Duct and the purchase of Alpha Sheet Metal. In the late 70's Alpha provided over a mile of 48" dia. spiral ducting complete with fully welded rings and a Alpha Quick Lock coupler. The duct was for the Bruce Generating station. However this duct was supplied and installed under lake Huron. The duct was used to supply fresh air to the men working under the lake. A tunnel 28' ft. in diameter was cut under the lake. The duct was removed and the water was let into the tunnel. This water was necessary to cool the nuclear reactors. In the 1980's Alpha expanded its product line to include a complete line of Flexible duct. Both metallic and non-metallic flex duct. As well they added insulated and acoustical flex. Alpha survived the recession of the 90's not by down sizing but rather expanding. First in the early 90's into the architectural field by manufacturing and supplying architectural panels for many of the schools and institutional buildings which were built during that time.

Later in the mid 90's they further expanded in the manufacturing of heating and ventilating ductwork. Today, Alpha is the only manufacturer in Ontario, in the sheet metal heating and ventilating industry that manufactures Round Spiral Duct, Rectangular Duct, Flexible Duct, Flat Oval Spiral Duct and all their related products.

In 1997 and 1998 Alpha was involved with the Canadian Government in the supply of all the ductwork for the new Havana Airport in Cuba. The duct was manufactured in their Mississauga plant, loaded in containers and shipped by boat to Cuba. Most recently Alpha used a very innovative approach to a local project The Toronto Convention Center. The Contractor was faced with the difficult and expensive process of lowering all of their ductwork into the building by tower crane. The solution by Alpha was that they would place their manufacturing on site. Produce all the ductwork over a very short period then remove their equipment. The contractor was extremely pleased with this proposal and the cost savings to the contractor were enormous. Today in the year 2000, Alpha's continuing growth includes fully assembled and factory sealed rectangular duct supplied directly to the project ready for installation.

The Story Continues..........