About
Ranked the #1 CertainTeed Five-Star Contractor in Washington State out of nearly 5,000 roofing companies, Three Tree Roofing brings a documented track record of quality workmanship and consistent processes to commercial roofing projects across Seattle and the greater Puget Sound region. For facility managers and property owners overseeing commercial assets, that credential signals a contractor held to rigorous manufacturer standards on materials, installation, and warranty compliance. Three Tree Roofing offers commercial roofing services covering flat roofing and metal roofing systems — the two categories most commonly specified for Seattle-area office buildings, retail centers, mixed-use developments, and multifamily properties. Given the Pacific Northwest's heavy annual rainfall and sustained moisture exposure, flat and low-slope membrane systems such as EPDM, modified bitumen, and TPO are routinely required on the region's commercial inventory, and a contractor operating at this certification level is positioned to execute those installations to manufacturer warranty standards. Metal roofing solutions are also available, relevant for warehouse, industrial, and institutional facilities seeking long-cycle performance in Seattle's wet climate. The company emphasizes consistent internal processes, quality material sourcing, and high-volume customer communication — factors that matter to facility managers coordinating roofing scopes around tenant schedules and capital improvement timelines. With over 450 five-star reviews and a stated referral rate of approximately 80% from existing clients, Three Tree Roofing carries a strong reputation for project follow-through in the Seattle market. Commercial property managers evaluating roofing contractors in the Puget Sound region should note the company's manufacturer-backed warranty coverage and established project portfolio as indicators of commercial reliability.
