J&B Materials

J&B Materials, Inc., a GMS Company, is your local supplier of high quality construction and building materials

In April of 1946, Charles Hardy purchased Ontario Rock Milling Company which was located at 2710 Frederick Street in the city of Los Angeles. The Company existed as a service oriented organization, specializing in the milling and screening of non-metalic minerals. A fire consumed the business in 1947, the result of which was the move to our current location in the city of Paramount. Shortly after the relocation, the company began to crush and sell rock and ceramics to be utilized by the roofing industry. It was a natural progression for other roofing related products to be added to the inventory. Over the years, our product line has continued to expand and diversify in order to meet the constantly evolving standards of the building trades. Currently, we distribute a complete line of building products, tailored to meet the needs of the tenant improvement industry. Complementing our many products, is the ability to professionally deliver and stock materials on your job site.