Rear elevation of a Tudor-style brick home in Seattle with a steep, multi-plane black Interlock aluminum slate metal roof, twin chimneys, and a glass conservatory addition.

Seattle, WA · Lifetime Aluminum Roofing

Metal Roofing in Seattle, Washington

Interlock® installs lifetime aluminum metal roofing in Seattle, WA — 419 roofs completed since 1998 by installation crews. Explore roofing profiles, local project evidence, and applicable limited warranty terms.

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Why Seattle homeowners choose Interlock

Interlock Metal Roofing (PNW) Inc. is Seattle’s trusted metal roofing contractor, proudly serving homeowners across Washington since 1997. As the exclusive authorized installer of Interlock® lifetime aluminum roofing systems, we deliver unmatched performance, beauty, and durability tailored for the Pacific Northwest’s unique climate. Seattle’s heavy rainfall, occasional snow, and seasonal storms demand a roof that stands up to the elements—our heavy-gauge, fire-resistant, and energy-efficient cool roofs are engineered for superior snow shedding and long-term protection. Whether you prefer the classic look of slate, cedar shingles, shake, Mediterranean tile, or modern standing seam, our roofs combine timeless style with the proven strength of metal. Every installation is protected by the advanced Alunar® Coating System and backed by a Lifetime Warranty, ensuring your Seattle home stays safe, beautiful, and energy-efficient for decades. Choose Interlock Metal Roofing (PNW) Inc. for the best roof replacement and re-roofing services in Seattle, Washington.

419Roofs installed in Seattle
1998First Seattle installation
2026Most recent installation
71Verified local reviews

Roofing styles available in Seattle

Explore five aluminum roofing profiles with the Alunar® coating system. Coverage and transfer provisions are subject to the applicable limited warranty terms.

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Interlock roofs we've installed in Seattle

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Completed Interlock® metal roofs near Seattle, WA

Interlock® has installed 419 lifetime aluminum metal roofs in Seattle, Washington, United States since 1998. Every marker represents an anonymized project from our installation records. Explore verified installations across Seattle, Washington, United States on the interactive project map and photo grid — filter by roof profile (Slate, Cedar Shingle, Shake, Mediterranean Tile and Standing Seam), colour and year of completion.

See completed Interlock® metal roofing projects across Seattle, WA →

Open Seattle, WA on the interactive project map →Browse the Interlock® project directory for Seattle, WA →See more Interlock® projects →

What Seattle homeowners say

★★★★★
Metal Shingles Seattle, WA Review 🇺🇸 — March 7, 2026 | Interlock®
Review: March 7, 2026Completion: February 28, 2026
The work was efficient and well done. The service, the people and team were great. Beautiful roof.
Juan Pulido and Patricia A.Seattle, WA
★★★★★
Metal Shingles Seattle, WA Review 🇺🇸 — June 8, 2025 | Interlock®
Review: June 8, 2025Completion: May 22, 2025
Great work on time excellent communication excellent clean up
Danny and Kathleen L.Seattle, WA
★★★★★
Metal Roofing Seattle, WA Review 🇺🇸 — May 10, 2025 | Interlock®
Review: May 10, 2025Completion: April 28, 2025
It’s such a relief to have a beautiful, reliable roof over our house now. Patrick, Tony, and the installation crew had their work cut out for them with our 1911 Craftsman’s steep roofs.
David K.Seattle, WA
★★★★★
Metal Roofing Seattle, WA Review 🇺🇸 — March 20, 2025 | Interlock®
Review: March 20, 2025Completion: March 20, 2025
Interlock Metal Roofing is a wonderful product. Michael did an awesome presentation and was very professional and thorough answering all of our questions. If you are in the market for a new roof give them a chance!
Kathy J.Seattle, WA
★★★★★
Metal Shingles Seattle, WA Review 🇺🇸 — September 15, 2023 | Interlock®
Review: September 15, 2023Completion: July 27, 2023
The roofing installers did not initially integrate the ice & water shield membrane correctly with the drip edge. I had another roofer prepare the roof deck and put high temp ice & water shield over my whole roof deck ahead of time - a requirement because of my solar panels. So, if it's worth it to have ice & water shield, it's worth doing it right.
Dan Aylward and Alyssa L.Seattle, WA
★★★★☆
Metal Shakes Seattle, WA Review 🇺🇸 — December 14, 2022 | Interlock®
Review: December 14, 2022Completion: November 22, 2022
Prompt return on telephone inquires would be good. I am expecting attention to any problem that might come up. I like the looks of my new roof.
Estell B.Seattle, WA