Phone: (540)665-9600 | E-mail:
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Roof Trusses
Floor Systems
Wall Panels
Doors and Windows
Custom Millwork


Annandale Millwork/Allied Systems manufactures and distributes pre-hung interior and exterior doors, windows, and trim and custom architectural millwork, and the entire framing package which consists of wall panels, floor systems, lumber and roof trusses. We also offer engineering support and top customer service.

Whether you need us to deliver an entire package of component systems, or just your roof trusses, we'll work with you to assure that there's synergy between our custom millwork and component systems. When we produce the building components and install the windows and doors, they'll be installed seamlessly ­ the first time. And if they aren't? We fix them on the spot.

We are Members of the:

- Wood Truss Council of America
- Truss Plate Institute (third-party) independent quality inspector
- NVBIA Northern Virginia Builders Industry Association
- National Association of Homebuilders
- ABC of Metro Washington (Associated Builders and Contractors of Metro Washington)

Special Certifications

Annandale's truss plant is:
# Certified with the In-Plant WTCA QC program

Certified by InstallationMasters ™

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