Metal Roofing in Alderwood Manor, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally
Alderwood Manor 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 Alderwood Manor's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection
Interlock Metal Roofing (PNW) Inc. is Alderwood Manor’s trusted local metal roofing contractor, proudly serving Washington homeowners since 1997. As the exclusive authorized installer of Interlock® lifetime aluminum roofing systems, we deliver unmatched performance, beauty, and durability tailored to the Pacific Northwest’s unique climate. Our heavy-gauge, fire-resistant roofs are engineered to withstand Alderwood Manor’s wet winters, frequent rain, and occasional snow, providing superior snow-shedding and long-term protection against moss, leaks, and wind. Choose from the timeless elegance of slate, cedar shingles, shake, Mediterranean tile, or modern standing seam—all with the strength of metal and the advanced Alunar® Coating System for maximum energy efficiency and color retention. Every Interlock Lifetime Roofing System is backed by a Lifetime Warranty, making us the top choice for roof replacement and re-roofing in Alderwood Manor, 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 ~1148 mm of rain a year
Corrosion Resistant
Aluminum does not develop iron rust
- Authorized Interlock® installer serving Alderwood Manor and Snohomish County homeowners
- Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
- Aluminum panels coated with the Alunar® Coating System (no visible aluminum surface) for enhanced corrosion resistance and durable color retention
- Tested to withstand 120+ mph wind events to resist severe storm gusts that can impact Alderwood Manor roofs
- Designed to shed snow and limit accumulation to reduce roof loading and ice-dam risk during Snohomish County freeze–thaw cycles and occasional snow
- Class A fire-rated available to support ember resistance and meet local fire-code considerations
- UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris from regional windstorms
- Energy-efficient cool-roof performance helps reduce attic temperatures and limit summer heat gain during Pacific Northwest heat spikes
- Solar-compatible roof surface engineered for modern bracket-mounted photovoltaic systems on Alderwood Manor homes
- Sustainable, fully recyclable aluminum roofing that offers longer service life compared with asphalt shingles in high-moisture climates
- Low-maintenance finish resists corrosion and fading in Alderwood Manor’s damp conditions, reducing routine upkeep and repair frequency
- Premium architectural profiles that replicate slate, cedar shake, and tile, plus standing seam options for neighborhood curb appeal
- Atmospheric rivers: reinforced seam integrity and watertight detailing specifically address the prolonged, intense rain events that affect Alderwood Manor
- Coastal salt air: Alunar® coating and corrosion-resistant aluminum mitigate marine exposure and occasional salt-laden air from Puget Sound toward Alderwood Manor
- Moss and algae: smooth, nonporous coated panels reduce organic growth and simplify moss removal during Alderwood Manor’s persistently damp winters
- Backed by a Lifetime-Limited transferable warranty to protect Alderwood Manor homeowners’ investment and resale value
Metal roofing built for Alderwood Manor's climate
Averages (10-yr): ~1148 mm rain and 37 cm snow per year, ~2898 sunshine hours, mean 10.5°C, typical daily-max winds ~17 km/h with gusts to 112 km/h, and ~31 freeze–thaw days per year.
- 37 cmavg. snow / year
- 1148 mmavg. rain / year
- 31freeze–thaw days / year
- 112 km/hpeak wind gusts
- 2898 hrsannual sunshine
- 10.5°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 Alderwood Manor, Washington
Interlock® Aluminum Roofing — all-climates performance specs for Alderwood Manor, 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 Alderwood Manor, Washington:
Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.
Recent Interlock® roofs across Washington
1 completed Interlock® metal roofs in Alderwood Manor, WA
Interlock® has completed 1 metal roof in Alderwood Manor, Washington between 2011, across 1 roof profile (Standing Seam). 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.
- 1completed roofs
- 1roof profile
- 2011years
Open Alderwood Manor on the interactive project map →Browse all Interlock® projects in Washington →See more Interlock® projects →
What our customers are saying:
We are writing this letter to show our appreciation for the wonderful job that was done on our roof. From the date your company representative met with us in our home to the date of completion, words cannot express how completely satisfied we are with your company. We definitely wanted a quality roof and were very impressed by the representation that was given to us. The product you provide was enough for us to make our decision, however it was a huge plus not to have to deal with a pushy salesman and to have such polite, friendly and hard working men providing the service. It was a pleasure to have them around our home. The quality, craftsmanship and lifetime warranty of this roof far outweighs the increased costs over other roof systems. However, other roof systems don't come with lifetime warranties and many only last for 8 to 10 years. We may have paid a little more initially, but how wonderful it is to know we will never have to re-roof our home again. And in addition to all of the above, it looks so beautiful and has added so much style to our home. I never dreamed a roof could make such a difference. Again, Thank you so much and be sure to know we will highly recommend your company to all of our family and friends.
Interlock Roofing was friendly, helpful and super fast at installing our gorgeous new roof! Can't believe it's no louder in the rain than our old roof!
I brought some thingd to their attention during installation, but were initially ignored. However, when I again brought these to their attention, they were fixed satisfactorily. The itemd were thingd one by the 2nd. The primary did the corrections. The completion of this job was slightly delayed due to an electical storn that chased the crew off the roof. I was impressed by then arriving early and staying until it was too dark to safely work longer.
It has been a good experience, but the price is a little high. I am still thinking about it.
Their office administration wasn't very responsive to my questions, like the tarping problem.
Interlock Metal Roofing (PNW) Inc. recently replaced our roof in Lynnwood, WA with beautiful metal roofing using Interlock aluminum shingles, and our home now stands out in the neighborhood. While the installation took longer than expected and there were some concerns about jobsite cleanliness and communication around contractors, the finished metal roof looks great so far and we’re hopeful it will perform well through the rainy season.
I was trying to compare with the traditional roofing shingles.
Nearby service areas in Snohomish County
Interlock® metal roofing is also installed in these communities near Alderwood Manor:
Interlock Metal Roofing (PNW) Inc. also services nearby States
Beyond Alderwood Manor, our team installs Interlock® metal roofing across:
