G.S.I. Complete Glass Inc.

Diamond Rating

To earn the Showroom Diamond, the dealer must have a showroom with a minimum number of Milgard products on display.


1101 S Frontage Rd
Deer Park, WA 99006
United States

Store Hours

Monday8:00am - 5:00pm
Tuesday8:00am - 5:00pm
Wednesday8:00am - 5:00pm
Thursday8:00am - 5:00pm
Friday8:00am - 5:00pm

Services Offered

Free estimates
Has Showroom
Offers installation

About Us

We are a family owned business and have had our doors open for over 25 years. We have over 100 years of experience. Our name tells the story about who we are at GSI. Guarantee, Service, & Integrity. Integrity means doing the right thing when no one is watching. We have great people with great product knowledge. Let us help you with any project large or small.

Awards Received

Areas Served

Spokane, Deer Park, Spokane Valley, Colville, Chewelah, Stevens County, Spokane County, Surrounding Areas.


G.S.I. Complete Glass Inc.

See All Reviews
G.S.I. Complete Glass Inc. is rated 5.0 out of 5 by 2.
Rated 5 out of 5 by from Hands on customer service I have used GSI Glass for years for my windows (Milgard) , doors , shower doors that are amazing and auto as well GSI is my one stop shop before I go elsewhere. Family owned with real customer service not press 1 now I get a real human every time I call. Thanks again GSI I'll be back when and if in need. M
Date published: 2018-01-30
Rated 5 out of 5 by from Great service and best installation around! Great team, responsive and accurate. Matt got me set up with everything and great pricing on top of that!
Date published: 2018-01-25
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