Window Replacement in Sumas, WA

Weather-tough windows for Sumas homes

Right on the Canadian border at the foot of the Cascades, Sumas sees weather that tests a home hard — cold snaps that pour down out of the mountains, heavy rain, and the flooding the Nooksack has brought through town more than once. Homes here need windows that seal tight against the cold and shed water without fail. Older Sumas homes with single-pane or early aluminum windows lose heat fast and struggle with condensation all winter.

Sealed against cold, rain and flood-country damp

We install low-E, argon-filled dual and triple-pane windows that hold heat through a hard border-country freeze and cut the condensation that damages sills and walls. Just as important in a flood-prone town, we flash and seal every opening to keep wind-driven rain and rising damp out of the wall assembly — because in Sumas, water management is everything. Frames are vinyl or fiberglass that won't corrode or warp with the moisture.

• High-efficiency glass for extreme border-country cold
• Meticulous flashing and sealing for a flood-aware town
• Condensation control to protect sills and framing
• Durable frames that shrug off heavy moisture

Local, envelope-first installation

Alpine is a building-envelope specialist first, and in a town like Sumas that's exactly what you want — a contractor who treats a window as part of keeping the whole house dry. Backed by 25 years of experience and a 25-year workmanship warranty, we'll give you a straight, no-pressure estimate on your Sumas window project.