Our services


We sell and install windows from many different manufacturers. We are also a full-line glass shop serving Spokane County and its surrounding areas.


Jeld-Wen Wood & Vinyl

Milgard Fiberglass & Vinyl

Marvin Wood

Integrity Fiberglass

Alpine Windows

Sneeze Guards


We are the Spokane region’s premier door supplier, selling and installing interior and exterior doors of many brands and wood species.


Emergency Services

Now offering emergency services in the Spokane – Deer Park Area. Board ups / Broken Windows & Doors / Auto. Please call 509-276-7988 24/7 for emergency work.


Residential / Commercial / Auto


Our highly experienced team installs every product we sell.


Contact Us


More Products

Storm Doors

We sell and install storm doors from Larson and Buffelen.


Velux, Crystalite, and Western Skylights provide the skylights we carry.


Our shower enclosures come from Holcam and Cardinal.

Window Fashions

Provided by Skandia.

Auto Glass

We install auto glass from PPG and Pilkington.


Provided by Phantom Screens, Talius, and Larson.

Porch Windows

Scenix by Larson

Security Windows & Doors

Provided by Talius and Larson.

About Us

GSI Complete Glass opened on July 15th, 1992 to serve the glass needs of the Deer Park and Spokane regions and beyond. Brian and Tony both worked in the glass business for years prior to opening GSI. Since the beginning, GSI has been committed to excellent service, top quality products, and the highest level of workmanship, giving them access to many higher-end and unique products in addition to the standard offerings from glass companies. Supplying doors and windows to Spokane and the surrounding region is just the beginning of all GSI has to offer.

  • The "G" stands for Guarantee. We fully guarantee everything we do!
  • The "S" stands for Service. The quality of service that our customers have come to expect and deserve before, during, and after the sale.
  • The "I" stands for Integrity. You deserve the very best that we have to offer. That includes fair pricing, quality installation, and quality service.


What our customers say

“GSI solved our biggest challenge by finding a slider with blinds that fit our space – they were very convenient, provided friendly and helpful service, and the project took only 2 hours to complete!”


“Just had Austin’s crew install 2 new exterior doors.  Their attention to detail was excellent, and this was the best door install job I have ever had since I have owned homes in 1989.”


“To the GSI crew: I just wanted to let you know how much I’m enjoying my new windows (last summer and this past summer).  Your guys did a great job installing them in a poorly built house and I appreciate it.  The front door too.”


“Thank you for the superior workmanship you provided with installing our windows.  From the first contact at the home show, throughout the appraisal process, to the finished product, your company excelled in providing a professional job.  You should be very proud of your employees, they went above and beyond our expectations.  They cleaned, painted, vacuumed and picked up every little piece of scrap.  Your company is the total package and is top among your competitors.  We will be referring you to our friends and family.  When we are ready to replace the rest of the windows, we will be contacting you.  Thanks again for a fabulous job.”

Kemp & Debbie

Our Team