About Us

Who We Are

A family owned company since 1938, Rex Heat Treat has grown to become the preeminent commercial heat treat company in the country. With two state of the art facilities in Lansdale and Bedford, Pennsylvania, Rex Heat Treat is a company on the rise, dedicated to outstanding customer service and unrivaled professionalism. For three generations we have taken great pride in our ability to partner with our customers to gain insight regarding their future needs. With unparalleled professionalism, and unrivaled customer service, Rex Heat Treat is the heat treater of choice in a growing and dynamic industry.


Rex Heat Treat began in a two car garage in Lansdale, Pennsylvania. With the country entering World War II, the business grew rapidly due to the high demand of heat treating services for aircraft, guns, and various hand tools. After the war, J. Walter Rex and his partner Elmer Erb parted ways and the company became the J.W. Rex Company. In addition to the needs of peacetime products, there was a growing need for advanced military projectiles. J. W. Rex Company became recognized as a major resource for heat treating and, eventually, manufacturing of military ordnance shells for the Army and Navy.