Founded by David Serres in 2000, Island Sash & Door opened their first location on South WhidbeyIsland with little more than a cell phone and a second-hand blueprint table.

However, David brought more than two decades of experience in the window & door industry (production, distribution, installation & sales) – in the Puget Sound region – and a reputation for being customer oriented. Island Sash & Door quickly grew in sales, scope & market area.

In August of 2015 Island Sash & Door acquired Simmonds Glass – an icon in the window & glass business, in Anacortes WA. This acquisition broadened our portfolio and added depth, expertise, and an expanded line of products and services. To manage the expansion and to capitalize on the extraordinary growth potential, David sought, and found, an individual with the experience to shepherd Island Sash & Door to new heights – while keeping our commitment to our employees and to our customers first.


2017 brought the opening of a new satellite sales office in Lake Oswego, Oregon. David, a native of Lake Oswego, began his career in the window & door industry in 1975 – right here in the tri-county area. Returning to our roots; Island Sash & Door has successfully serviced the Architectural & Custom Home Builder/Remodeler arenas providing the best of products, service & expertise for them & their clients.


In June of 2020, Island Sash & Door expanded once more, creating a hub that proudly serves Central and Western Oregon.

Over the years Island Sash & Door has bought, sold, specified, serviced, and installed every type of window & door product the industry has offered. Working with the Architectural and Design communities, coordinating with the builder, or consulting directly with the owners, our approach has always been the same;

“We strive to understand the client’s goals for performance, vision of aesthetics, and budget; and match them with the appropriate product lines to help successfully meet those objectives.”

Since 1923 as Simmonds Paint & Glass, our company DNA has endured recessions, thrived in times of economic growth and after decades of service to the residents and building professionals of Skagit, Island, and San Juan Counties, we continue the Simmonds Glass iconic tradition in the window and glass industry in the Pacific Northwest as Island Sash & Door.

Today, the Island Sash & Door brand boasts a staff with decades of experience and deep community roots. Many have been working here for more than twenty years and share a strong service oriented philosophy while continuing to overcome challenging design requirements, master compliance hurdles and solve product selection problems where others can’t.