Our Mission:

Providing insight that keeps your building water-tight.

We know that developing your building enclosure specification, installing water-proofing products, or keeping your existing facility water-tight can feel overwhelming.

With over 35 years of experience, D-Seven LLC is the leading manufacturer rep firm in bringing innovative Division 7 building products to market in the Pacific Northwest. We focus each day on being a known and trusted advisor to each one of our valuable customers - Architects, Consultants, Engineers, Building Owners, Contractors, and General Contractors. We are proud to have partnered with a select group of manufacturers that make products focused on quality, consistency, and innovation. 

We are your local resource for all things to do with the building envelope – roofing, waterproofing, wall systems, and expansion joints. Through valuable education, unparalleled project support, and supported by years of technical expertise, we help our customers identify the products they need to design, specify, and install with confidence. 

We have offices in Seattle and Portland which position us to provide quality service to our customers throughout the Pacific Northwest.