About Company

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).

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