York Building Products Company has been supplying quality products to the building industry for over 60 years. Throughout that time our manufacturing focus has expanded from gray block to architectural block, retaining wall systems and colored mortar. In addition, the company has developed quarries and mining operations throughout south central Pennsylvania and northern Maryland from which we supply stone, sand and gravel to our own block manufacturing plants and bituminous asphalt plants as well as other manufacturing customers, state, commercial and residential construction projects.