Metal Roofing in Steilacoom, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Steilacoom Metal Roofing Experts Installing Lifetime Interlock® Aluminum Shingles Since 1997
What do Interlock customers in Washington say?
Interlock has 734 published customer reviews from Washington, covering installations reviewed between 1999 and 2026. They average 4.7 out of 5, with 669 collected through independent GuildQuality surveys. Interlock® Slate is the most frequently installed system in the region, appearing in 287 of these projects. Across the surveys that scored individual categories, quality of materials rates highest at 4.9 out of 5.
Metal Roofing Built for Steilacoom's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Steilacoom, Washington’s trusted local metal roofing contractor, proudly serving homeowners 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. Our heavy-gauge, fire-resistant, and energy-efficient cool roofs are engineered to withstand Steilacoom’s rainy winters, occasional snow, and coastal winds—shedding snow easily and resisting moss, mildew, and corrosion. Whether you prefer the timeless look of slate, cedar shingles, shake, Mediterranean tile, or standing seam, our roofs combine classic 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 Steilacoom 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 Steilacoom, Washington.
Performance you can measure (all climates)
Weather Resistant
Tested to 193+ km/h (120 mph) winds
Durable
Lifetime-Limited, transferable warranty
Energy Efficient
Reflective cool-roof lowers cooling costs
Rain & Moisture Proof
Repels ~1195 mm of rain a year
Freeze–Thaw Durable
Endures ~46 freeze–thaw days a year
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events.
- The aluminum is Coated with the Alunar® Coating System (no visible aluminum surface).
- Interlocking panel system tested to 193+ km/h (120+ mph) for severe Puget Sound windstorms that impact Steilacoom shoreline homes.
- Advanced waterproof installation standards provide extended leak protection through Steilacoom’s wet seasons and wind-driven rains.
- Snow-shedding metal panels reduce buildup and help prevent ice dams during occasional freeze–thaw cycles on higher-elevation properties in Pierce County.
- Built to tolerate rapid seasonal transitions and persistent damp roof conditions common around Steilacoom and nearby tidal areas.
- Class A fire-rated available for homeowners seeking ember resistance and added wildfire-standby protection within Pierce County zones.
- UL 2218 Class 4 impact resistance helps protect roofs from hail, falling branches, and storm debris during Pacific Northwest storms.
- Energy-efficient cool roof performance reduces heat gain during summer warm spells and improves attic comfort in Steilacoom residences.
- Solar-compatible engineering supports modern bracket-mounted photovoltaic systems on Steilacoom roofs without compromising weatherproofing.
- Sustainable, fully recyclable aluminum roofing minimizes lifecycle waste for environmentally conscious homeowners in Pierce County.
- Premium architectural profiles replicate slate, cedar shake, and tile while offering the durability of metal for Steilacoom curb appeal.
- Low-maintenance roofing solution designed to outlast asphalt shingles in Steilacoom’s high-moisture, marine-influenced climate.
- Backed by a Lifetime-Limited transferable warranty to protect long-term investment and resale value for Steilacoom properties.
- Designed to resist moss and biological growth that thrive on damp roofs in Steilacoom’s maritime environment.
- Built to shed heavy rainfall and withstand atmospheric-river events that drive prolonged precipitation across Steilacoom and Pierce County.
Metal roofing built for Steilacoom's climate
Averages (10-yr): ~1195 mm rain and 30 cm snow per year, ~2943 sunshine hours, mean 10.9°C, typical daily-max winds ~14 km/h with gusts to 98 km/h, and ~46 freeze–thaw days per year.
- 30 cmavg. snow / year
- 1195 mmavg. rain / year
- 46freeze–thaw days / year
- 98 km/hpeak wind gusts
- 2943 hrsannual sunshine
- 10.9°Cmean temperature
Roof performance depends on the selected profile, tested assembly, roof structure and installation details. Class A fire-rated assemblies are available. Confirm applicable ratings in the testing reports and review the limited warranty before selecting a system.
Interlock Metal Roofing (PNW) Inc.
- 5608 17th Ave NW suite 1574, Seattle, WA 98107, United States
- Phone 206-589-8423
- Local lines Bellevue 425-225-4805 · Bellingham 360-502-4018 · Tacoma 253-352-2725 · Stanwood 206-202-7814 · Vancouver 360-873-5878
- Sales & Marketing sales@washingtonmetalroofing.com
- Toll-Free 1-866-733-5811
- Customer Service pnwservice@interlockroofing.com
- www.WashingtonMetalRoofing.com
- License WA #INTERMR75406
- Serving Washington since 1997 — 28 years
Hours
- Monday9:00 AM – 5:00 PM
- Tuesday9:00 AM – 5:00 PM
- Wednesday9:00 AM – 5:00 PM
- Thursday9:00 AM – 5:00 PM
- Friday9:00 AM – 5:00 PM
- SaturdayBy appointment
- SundayBy appointment
Interlock Metal Roofing (PNW) Inc. – Washington is a trusted metal roofing contractor proudly serving homeowners and businesses throughout Washington State. With decades of experience in the roofing industry, Interlock has built a reputation for unmatched quality, reliability, and customer satisfaction. As a specialized installer of premium aluminum and standing seam metal roofs, Interlock is an exclusive authorized installer of top-tier roofing systems designed for performance, longevity, and weather resilience — specifically engineered for the Pacific Northwest climate. Founded on principles of craftsmanship and integrity, Interlock Metal Roofing (PNW) Inc. has completed thousands of roofing projects with precision and professionalism, earning the loyalty of customers from Seattle to Spokane. Our team is known for timely project delivery, transparent communication, and exceptional workmanship, backed by robust warranties and industry-leading materials. Interlock’s commitment to excellence has been recognized through local and regional industry awards for safety, quality, and customer service. We stand out for our rigorous training standards, OSHA-certified crews, and adherence to best practices in roofing performance and installation safety. Whether it’s a residential metal re-roof, commercial roof installation, or custom architectural metal roofing, Interlock Metal Roofing (PNW) Inc. brings trusted expertise, lasting product solutions, and an unwavering focus on client satisfaction. Homes and businesses throughout Washington choose Interlock as their go-to metal roofing specialist because we deliver durable, high-performance roofs that stand the test of time.
Recognition GuildQuality Guildmaster Award — verified customer satisfaction (GuildQuality)
Accredited BBB Accredited A+
Get a Free Metal Roof Estimate in Steilacoom, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Steilacoom, Washington
| Spec / Rating | Climate / Risk Factor + What It Solves |
|---|---|
| Wind resistance: 120+ mph (193+ kph) | Extreme wind, hurricanes, storm uplift: full interlocking attachment helps prevent blow-offs, edge lifting, and panel loss in high-gust events. |
| Fire rating: Class A (with proper assembly) | Wildfire, embers, radiant heat, chimney sparks: non-combustible roof assembly provides the highest residential fire protection rating. |
| Hail resistance: UL 2218 Class 4 | Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes. |
| Snow & ice performance: interlocking, shedding profile | Heavy snow, freeze-thaw, ice dams: smooth aluminum sheds snow efficiently and the interlocking design helps block water intrusion when melt-refreeze cycles occur. (Final snow-load capacity depends on roof structure and local code.) |
| Corrosion resistance: aluminum (won’t rust) | Salt air, coastal humidity, wet climates: aluminum naturally resists rust and corrosion, reducing long-term failure risk in marine or high-moisture environments. |
| Heat / UV durability: baked-on coating system | High heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation. |
| Moss / algae resistance: smooth coated surface | Wet shade, organic growth: low-porosity metal surface gives moss/algae less to grip, reducing staining and maintenance. |
| Material: heavy-gauge aluminum roof profiles (Slate / Shake / Shingle / Tile / Standing Seam) | All-season structural stability: lightweight, dent-resistant metal system stays stable through large hot-cold swings and severe weather. |
| Expected lifespan: 50+ years | Long-term durability across climates: avoids re-roof cycles typical of shorter-life materials, even in high-stress environments. |
| Warranty: Lifetime-Limited, non-prorated + 50-year transferable | Lifetime protection + resale value: guarantees long-term material confidence and transfers to future owners. |
Available Profiles in Steilacoom, Washington:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Washington
4 completed Interlock® metal roofs in Steilacoom, WA
Interlock® has completed 4 metal roofs in Steilacoom, Washington between 1998–2020, across 3 roof profiles (Standing Seam, Shingle, Tile). Every marker is a real, anonymized installation completed by an Interlock Installer — explore them on the interactive map and photo grid below, filterable by profile, colour and year of completion.
- 4completed roofs
- 3roof profiles
- 1998–2020years
Open Steilacoom on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
Ivan replaced our exhaust vent on the roof that had some leaking issue. We were impressed with his professionalism, courtesy and fixing the problem to our utmost satisfaction. We certainly would recommend him and the company for any roofing issues being it a new roof or repairs.
It was a great experience,but we decided to go with another company.
They are great people!
Better communication regarding a more specific breakdown of who was supplying/installing roof underlayment materials.
Ross was a good guy, I wish I could do more business with him in the future.
The reason I won't be using Interlock is that at my age and the cost of a new Interlock roof system I can't justify putting on a $30K+ roof when I have other home priorities. If I was 20 years younger and still working I wouldn't hesitate putting an Interlock roof system on.
I have written this down and sent it to the company 2 days ago.
The one thing that I didn't like was that I felt pressured to buy on the spot.
The one thing that I didn't like was that I felt pressured to buy on the spot. We would rather collect facts from vendors to consider our chooses. We would have never excepted that even if the price had been good because of the pressure to buy.
I'm giving this one a 3 because of the cost.
Nearby service areas in Pierce County
Interlock® metal roofing is also installed in these communities near Steilacoom:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Steilacoom, our team installs Interlock® metal roofing across:
