Proudly serving King County
Seattle - Bellevue - Redmond
Renton - Issaquah - and more!

Eastside: 425-643-4700
4317 Factoria Blvd. SE, Suite B
Bellevue, WA 98006

Seattle: 206-683-3123
3849 1st Ave South #7
Seattle, WA 98134

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Replacement Fiberglass Windows

Lake Washington Windows & Doors Fiberglass Windows

Fiberglass windows are becoming increasingly popular with Seattle area builders, homeowners, and architects alike. These frames are strong, rigid, energy-efficient, and paintable. Fiberglass replacement windows are ideal for those homeowners seeking darker colors since the additional heat absorption from the darker colors does not distort the fiberglass frame. And because fiberglass is made primarily of glass, the fiberglass frame and the insulated glass unit expand and contract at very similar rates, thus putting less stress on the sealed insulated unit. In addition, fiberglass windows are one of the most eco-friendly windows around because they are made of an abundant resource (sand) and are environmentally-friendly to produce.

At Lake Washington Windows & Doors, we have chosen to offer Milgard Window's fiberglass line of window products, called the Ultra Series. Milgard is the largest fiberglass window manufacturer in the West with a proven track record for quality and service. Furthermore, their lifetime material and labor warranty is the best in the industry. Milgard is also a local manufacturer founded in Tacoma, Washington in 1958.

Contact Us Today to setup a free consultation.


We proudly use Milgard Window's products.

Milgard Windows