Windorco Supply Inc. has been providing high quality, energy efficient windows and doors since 1961. We are family owned and operated, and we strive to maintain quality relationships with general contractors, home owners, as well as many condominium and apartment building owners. We manufacture solid Douglas-Fir wood windows and welded aluminum windows in house, allowing us to be certain we are able to provide the quality you deserve at an exceptional price. From large custom homes to rentals, complete installations to pick-up orders, we do it all.

For over 54 years, three generations have been providing exceptional products and services to the Puget Sound area, as well as shipping to Alaska, Hawaii and as far away as Russia. Whether you're a neighbor of ours in Ballard, or managing a rental property out of state, we are confident we can provide the products you want and need. Specializing in true Douglas-Fir wood windows, Windorco has created our own niche in the greater Seattle area. Replicating old wood windows, all over Queen Anne, Capitol Hill, Magnolia and more, we've provided our customers with the value they desire at a fraction of our competition's price and lead time.

Windorco has been installing windows throughout the greater Northwest for over 54 years. We have always trained our own installers, never using sub-contractors or paying piece work, which can lead to shoddy workmanship and rushed installations. We believe spending more time and training on installations is essential. This keeps our clients pleased, and increases our business with referrals and repeat customers. We have an excellent record with minimal service calls, and strive to keep it this way.

What's new?

We provided the windows for this, definitely one of the most unique!

Posted on Apr 16, 2020  •  Facebook

Installation team ran into some surprises with this door portion of the job. The original aluminum slider was set in wet concrete.. Problems are just opportunities for solutions! Job turned out fantastic and homeowners are especially pleased that work on their home is done correctly this time!

Posted on Feb 27, 2020  •  Facebook

Installed two double sliding aluminum pass through windows in some food trucks recently. The second one shown here required a custom 3" channeled box to increase clearances for the hydraulic arms to operate. Installers NAILED it with all the custom notching and hardware relocating. Clients are thrilled with the result!

Posted on Feb 14, 2020  •  Facebook

Apologies for the lack of content lately, we've still been out there everyday!! Third story rotten wood windows, we pulled and installed new VG Fir with attached liner boxes, sill and brickmould. Matched original profiles and turned out great!

Posted on Feb 12, 2020  •  Facebook

Painted exterior AND interior vinyl windows are a great cost effective alternative to a bulkier fiberglass option. First phase of a house finished up in Duvall here, which had extensive rot repair and color match on the windows. Company and client are tremendously pleased on the great work our installer's did here!

Posted on Sep 21, 2019  •  Facebook

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