Great Northern works with a diverse range of door manufacturers to bring central Oregon a variety to choose from.


MilgardMilgard Sliding Glass Doors


When you’re looking to buy or replace doors and windows, you can’t go wrong with Milgard® windows and doors. Milgard’s determination to be the industry’s best extends to everything they do. Milgard offers energy efficient wood, vinyl, fiberglass and aluminum sliding glass and patio doors, all with a Full Lifetime Warranty.

Therma-Tru Doorstherma_button_feat

Beautifully crafted, energy efficient, secure, and easy to maintain, Therma-Tru fiberglass and steel entry doors are a durable alternative to wood.  With a front door by Therma-Tru, not only will you see an increase in comfort, energy efficiency and performance, you will also see an increase in curb appeal. In fact, you can increase the perceived value of your home just by adding a Therma-Tru entry door system.


Simpson Doorssimpson_button_feat

Manufacturing handcrafted exterior wood doors, interior wood doors, and custom wood doors since 1912.  Simpson has been handcrafting some of the world’s best wood doors for nearly a century. Driven by new technologies and some of the most knowledgeable craftsmen in the industry, Simpson continues to be a visionary in the wood door market.

Pet Door Designs


The Pet Door Design conversion system comes complete, ready for installation by Great Northern Window and Door. It is the only patio pet door product of it’s type available. It replaces the double pane glass in the sliding panel, and in some cases, the fixed panel of your patio door. It’s quick and easy. Your pet will love it, too!




We can help you decide which product is right for you and your home.

Contact a Great Northern Trusted Advisor soon to get started.  In-Home Consultations are Free!


Serving all of central Oregon

Licensed, Bonded, Insured
Visit our showroom during business hours 8-4 Monday through Friday.  Appointments are recommended.
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