York, Pennsylvania-based Product Design & Development, Inc., or PDDI, is a full-service tool and die firm. When PDDI first started operating in 1976, it catered to the window and door manufacturing sector by offering full turnover packages that comprised hardware design, window design, fabrication equipment, testing support, and metal stampings for window requirements. Our services have grown over time to include machined parts, plastic injection-molded parts, and the ability to work with manufacturers outside of the architectural product industry. The From residential to AW grades, every PDDI window and door design complies with AAMA regulations. Our designs come with assembly drawings, extrusion drawings, fabrication drawings, and bills of materials.