About Us

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Window and Door Concepts offers Sierra Pacific and Kolbe products for use in residential and commercial applications. We are also a distributor of Sierra Pacific Windows and Doors. We want to provide our customers with the best in quality millwork. We approach every project with a focus on aesthetics, functionality, cost, and value. For over twenty-seven years, we have been providing unique and innovative solutions for both residential and commercial construction projects. Each project is handled with unique perspective and integrity. We have established ourselves as a leader in the industry. Ingenuity and an eye for solutions make Window and Door Concepts the obvious choice for quality windows and doors.

Meet The Team

Jonathan Mirts

General Manager, The Concepts Family of Brands

Don Stewart

General Manager, Installed Sales

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Mike St. John

LEED AP,
Architectural Consultant &
Sales Representative 

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Chad Bowers

Inside Sales Manager

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Casey Collins

Installed Sales Office Manager