All Window Installers in Pennsylvania

Family-owned since 2003, Window World of Pittsburgh delivers ENERGY STAR® certified replacement windows, doors, and vinyl siding to enhance homes across Pittsburgh, PA, and surrounding counties. Trusted for window replacement expertise and premium exterior solutions—including exterior doors (entry/patio) and durable American-made products—we combine energy efficiency, curb appeal, and an industry-leading lifetime warranty. Fred and Pat Moran’s team offers free in-home/virtual quotes, professional installation, and personalized service for Allegheny, Beaver, Washington, Westmoreland, and nearby areas. Transform your home with Pittsburgh’s trusted exterior remodeler—schedule your free estimate today.

Family owned and operated since 1980, Specialty Window and Door has been serving Western Pennsylvania for 45 years to provide top quality window, door, and siding products. Top quality products at a fair and honest price.
“Replacing Windows and Doors, That’s our Specialty!”

Showroom hours are by appointment only.

Specified Systems, Inc. is one of the region’s most prolific erecting distributors of architectural aluminum windows, aluminum storefront and doors, low-rise aluminum curtain wall, and specialty glazings. The company covers metropolitan Pittsburgh, western PA to Erie and what is commonly known as the “Tri-State” which encompasses southeastern Ohio, West Virginia, and western Maryland.
We work closely with architects, general contractors, building owners, to specify the right product for the required application. We do our own field engineering and sizing, generate our own shop drawings, write our own engineered orders on window projects, fabricate storefront/curtain wall/entrance doors in our Washington PA shop, manage our own installations