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For over three decades Certified has established a reputation as Central PA’s Leading Window, Siding and Door Distributor. A reputation built on a solid foundation of quality products, product expertise, dependable delivery, competitive pricing, and a dedication to serving our customers.
Certified prides itself on being Central PA’s premier source for windows, siding, entry and garage doors.
Supplier of Building Materials to Professional Remodelers, Builders & Homeowners Throughout Pennsylvania & Maryland.
Central PA Dock & Door is your local garage door expert, providing sales, installation and repair service for fifteen nationally recognized brands of commercial door and dock products.