Window Installation & Replacement in Pittsburgh, PA

American Window Industries is a Pittsburgh-based window, door, siding and home-remodeling company founded in 1999 that specializes in replacement window and door installations (including Pella and Alside products), vinyl siding, gutters, soffit & fascia, and kitchen, bathroom and basement remodels; the company states a team with 83 years of combined experience, focuses on energy-efficient products backed by lifetime manufacturer warranties, offers free estimates and financing options, serves Allegheny and neighboring counties, and emphasizes licensed, insured installation and clear customer communication (source: American Window Industries).

Metropolitan Window Company is a Pittsburgh-based replacement window and exterior door specialist offering a complete line of Infinity (Marvin) fiberglass windows, Marvin wood windows, ProVia entry doors and related installation services. Metropolitan Window Company provides full-service consultations and professional installations from its South Hills and North Hills (Wexford) showrooms, emphasizes energy-efficient, low-maintenance products backed by manufacturer and dealer warranties, and focuses on long-standing local craftsmanship, award-winning service, and personalized project support for homeowners and institutions throughout the greater Pittsburgh area.

The Window Factory is a Pittsburgh-based window and door contractor with over 40 years of workmanship and experience. The Window Factory provides window repair, replacement, and installation services—covering insulated glass and screen replacement, balances and balance cams, casement operators, hinges and locks, balance adjustment, and weather-stripping—and offers a wide selection of entry, patio, and storm doors with various finishes and hardware. The Window Factory serves communities across Allegheny, Beaver, Butler, and Westmoreland counties, operates under PA contractor license PA009768, and emphasizes family-owned, locally focused craftsmanship, competitive pricing, and personalized at-home service.

Window Installation Specialists is a Pittsburgh-based window and door replacement and remodeling company serving Pittsburgh and Western Pennsylvania that specializes in installing Andersen, Marvin and Pella windows (including wood, fiberglass and vinyl options, bay/bow and specialty windows) as well as patio and entry doors, vinyl siding, gutters and related exterior home improvements; the company offers free in-home consultations and measurements, precision installation backed by manufacturer warranties and an installation workmanship guarantee, highlights local expertise for Pittsburgh’s climate, lists Bill Kish as the lead installer since April 1973, and provides financing options and on-site estimates (source: https://windowinstallationpittsburgh.com).

Zen Windows is a national window and door replacement company that simplifies buying with a no-pressure, no-money-down process and virtual quoting so customers can get an upfront estimate by phone or by sending photos. Zen Windows offers energy-efficient vinyl windows and entry/patio doors from brands such as ProVia, SoftLite, and Joyce, provides local installation and support across numerous U.S. markets, and backs installations with a double limited lifetime warranty covering both labor and materials. The company emphasizes transparent pricing, hassle-free service, and decades of experience (operating since 1998).