John Stack Sales Company Employee Directory
ConstructionPennsylvania, United States2-10 Employees
John Stack Sales Company is an established manufacturers' representative agency serving the construction sector, with a focus on Heating, Plumbing & HVAC. It is based in Wyoming, Pennsylvania, and has operated for more than six decades since its founding in 1958, initially serving Pennsylvania wholesale distributors as a marketing and sales representative for hydronic baseboard radiation, boilers, warm air furnaces, bath enclosures and accessories. The firm emphasizes a values-based approach centered on service, support, education, and technological advancement, and maintains long-standing relationships with its manufacturing partners. Its scope encompasses multiple industry segments, and it aims to contribute to the growth and advancement of the heating, plumbing, and HVAC sectors in the New England and Mid-Atlantic regions. In August 2025, the company announced a partnership with Quick Fitting Inc. and the addition of Pasco and Quick Fitting to its manufacturing partner lineup across the Mid-Atlantic and New England territories.