Winchester Industries is a privately owned Saltsburg, Pennsylvania manufacturer of replacement windows and doors, producing custom-made products since 1983. Its specialty is triple-pane glazing, a focus it established with its early Bristol replacement windows; the company operates Bristol and Oxford product lines and sells through an exclusive dealer network across the United States.
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ENERGY STAR
Compliance program
Superior Window Manufacturing, IncSuperior Window Manufacturing is a family-owned Pittsburgh-area manufacturer of custom vinyl windows, incorporated in 1992, with a history in the window and construction fields dating to the 1970s. The company builds windows locally and provides installation services for homeowners and contractors across the Pittsburgh region. It also supplies and installs residential doors, while its wholesale option provides custom windows for customer installation.PITTSBURGH, PA
Viwinco, IncFounded in 1982, Viwinco is a family-owned and operated manufacturer of custom-made vinyl windows and patio doors based in Morgantown, Pennsylvania. It produces nearly all of its products in-house, including its own tempered and laminated glass, and serves residential and commercial new-construction and replacement projects.MORGANTOWN, PA
Sprouse Windows & DoorsSprouse Windows & Doors has manufactured vinyl windows and sliding patio doors since 1972, building on West Virginia roots that include Sprouse Aluminum Products (founded in 1972) and Omega Window Systems (founded in 1985). From its New Martinsville, West Virginia facility, the company makes replacement and new-construction products for contractors, lumberyards, and distributors, with custom manufacturing and energy-efficient designs among its stated focuses.NEW MARTINSVILLE, WV
Trimline Windows IncorporatedTrimline Windows Incorporated manufactures custom windows and has promoted more than 60 years of window-making experience. Based in Ivyland, Pennsylvania, the company offers all-wood and aluminum-clad wood window lines for new construction, remodeling, and sash replacement.IVYLAND, PA