
PlyGem, installed by XPRT.
Ply Gem is a large American building-products manufacturer whose vinyl windows are a mainstay of residential construction across the country. In an XPRT sunroom, the window package is what turns a covered space into a real, conditioned room, so the choice of window matters as much as the framing around it. Ply Gem's broad, widely available vinyl line gives a sunroom durable, low-maintenance glass in the operating styles the room actually needs.
What distinguishes Ply Gem is scale and range. As one of the country's larger window makers, it offers vinyl windows across the full set of operating styles — single- and double-hung, casement, sliding, picture, and specialty shapes — with insulated glass and ENERGY STAR-qualified configurations available. That breadth lets a sunroom be glazed consistently, matching the operable and fixed openings to sun exposure, airflow, and the view without mixing brands across one room.
Why have XPRT install it
A sunroom window is only as good as the wall it sits in. XPRT frames the openings square and to size, flashes and seals them against Central Texas wind-driven rain, and insulates the surrounding wall so the room holds temperature. Windows set into a poorly built or unflashed opening leak and sweat no matter how good the glass is. One accountable team frames, glazes, and finishes the room, permitted where required and backed by a local warranty.

The lineup
PlyGem in the wild
Photography courtesy of PlyGem.
Common questions
For most sunrooms, yes. Vinyl windows are low-maintenance, resist warping and corrosion, and insulate well when fitted with modern insulated glass. We match the operating styles and glass to how the room faces the sun so it stays comfortable across the seasons.
Insulated glass with a low-E coating and ENERGY STAR-qualified configurations reduces solar heat gain, which matters a great deal on a west- or south-facing room here. Glass alone will not do the whole job, so we pair the right windows with proper wall insulation and, where it fits, shade. The room is designed as a system.
Absolutely. A sunroom is a permanent addition, and its windows are framed, flashed, insulated, and finished to the same standard as any exterior wall on the home. Skipping that is what causes leaks and drafts, which is exactly why we build the room as one accountable job.