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THE INTERLOCK COLLECTION

Metal Roofing in Cedar Falls, Washington — Lifetime Interlock® Aluminum Shingles Installed Locally

Cedar Falls 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 Cedar Falls's Heavy Rain, Snow Loads, Windstorms & Lifetime Protection

Interlock Metal Roofing (PNW) Inc. is Cedar Falls, 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 roofs are engineered to withstand Cedar Falls’ wet winters, heavy snowfall, and seasonal storms, providing superior snow shedding and long-term protection. With energy-efficient cool roof technology, our systems help reduce energy costs year-round. Choose from the timeless elegance of slate, cedar shingles, shake, Mediterranean tile, or standing seam—all with the strength of metal and the advanced Alunar® Coating System. Every installation is backed by our Lifetime Warranty, ensuring your Cedar Falls home stays safe, beautiful, and protected for decades.

Interlock metal roofing styles including slate, cedar, shake, tile, and standing seam in Cedar Falls, Washington

Performance you can measure (all climates)

Weather Resistant

Tested to 193+ km/h (120 mph) winds

Durable

Lifetime-Limited, transferable warranty

Rain & Moisture Proof

Repels ~1761 mm of rain a year

Energy Efficient

Reflective cool-roof lowers cooling costs

Snow-Shedding

Built for ~194 cm of snow a year

Freeze–Thaw Durable

Endures ~58 freeze–thaw days a year

  • Aluminum panels coated with the Alunar® Coating System (no visible aluminum surface) to resist corrosion and preserve finish under Pacific Northwest UV and moisture exposure
  • Precision weatherproof seams (profiles: slate, cedar, shake, tile) and mechanical fastening (profile: standing seam) deliver long-term leak protection during wind-driven rain events
  • Tested to withstand 120+ mph gusts—built for King County windstorms and strong storm fronts that impact Cedar Falls ridge and valley locations
  • High-performance waterproof installation that stands up to atmospheric rivers and prolonged heavy rainfall common to Cedar Falls and western King County
  • Snow-shedding panel geometry reduces buildup and mitigates ice-dam formation during freeze–thaw cycles in higher‑elevation Cedar Falls neighborhoods
  • Low thermal conductivity and cool‑roof options that reduce attic heat gain during occasional Puget Sound heat waves and improve year‑round comfort
  • UL 2218 Class 4 impact resistance for protection against hail, falling branches, and storm debris typical after intense Pacific storms
  • Class A fire-rated available for added ember resistance and peace of mind during dry-season wildfire outlooks affecting parts of King County
  • Smooth coated finish and panel slope reduce moss and lichen adhesion in Cedar Falls’ damp, shaded yards—cuts cleaning frequency and reroofing prep
  • Although inland Cedar Falls sees limited direct marine salt spray, the Alunar® coating still provides robust corrosion defense where salt drift occurs along exposed corridors
  • Precision profiles replicate slate, cedar shake, and tile to match local architectural character while delivering engineered performance for Cedar Falls homes
  • Solar-compatible roof design engineered for bracket-mounted photovoltaic systems common on King County residences
  • Fully recyclable aluminum construction supports long-term sustainability goals and reduces lifecycle waste compared with asphalt replacements
  • Low-maintenance system engineered to outlast composition shingles in Cedar Falls’ persistent moisture and seasonal temperature swings
  • Backed by a Lifetime‑Limited transferable warranty to protect homeowners and preserve resale value in the Cedar Falls and broader King County market

Metal roofing built for Cedar Falls's climate

Averages (10-yr): ~1761 mm rain and 194 cm snow per year, ~2743 sunshine hours, mean 9.8°C, typical daily-max winds ~11 km/h with gusts to 128 km/h, and ~58 freeze–thaw days per year.

  • 194 cmavg. snow / year
  • 1761 mmavg. rain / year
  • 58freeze–thaw days / year
  • 128 km/hpeak wind gusts
  • 2743 hrsannual sunshine
  • 9.8°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.

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+

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Interlock® Aluminum Roofing — all-climates performance specs for Cedar Falls, Washington

Spec / RatingClimate / 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 4Hail and impact debris: highest impact classification; resists cracking, splitting, and surface loss common with asphalt under hail strikes.
Snow & ice performance: interlocking, shedding profileHeavy 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 systemHigh heat, intense sun, thermal cycling: coatings resist UV breakdown and temperature-swing fatigue, slowing fading and surface degradation.
Moss / algae resistance: smooth coated surfaceWet 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+ yearsLong-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 transferableLifetime protection + resale value: guarantees long-term material confidence and transfers to future owners.

Available Profiles in Cedar Falls, Washington:

Explore all Interlock® metal roofing systems, or see the Guardian lifetime warranty and independent testing reports.

Completed Interlock® metal roofs near Cedar Falls, WA

Every marker is a real, anonymized Interlock® aluminum roof completed by an Interlock Installer. Explore verified Interlock® installations near Cedar Falls, Washington, United States on the interactive project map and photo grid — filter by roof profile (Slate, Cedar Shingle, Shake, Mediterranean Tile, Standing Seam, Solid Copper), colour and year of completion.

4.7 / 5 — from 734 verified customer reviews in Washington

What our customers are saying:

★★★★★
Review: May 23, 2019Completion: April 30, 2019

We have already recommended them. We put Ross in touch with our contractor for our contractor's other clients. We really had a great experience and everything went smoothly. The coordination of the project went really well and it was very smooth.

★★★★★
Review: June 10, 2021Completion: May 31, 2021

We had some previous knowledge about the Interlock Roofing system as our neighbor had one installed in 2001. It looks fantastic and has held up beautifully so the decision was fairly easy. We enjoyed having Paul Wright out to give us the low down on the product and is very personable as well. Even my shy pooch gave him much attention & Paul shared plenty of scratches. We were replacing a 20 plus year old roof on a 1935 home. The crew was amazing, it must of been the hottest week in May & they worked many long days the hot roof. We are getting so many compliments on the roof so we know we made the right choice by having this amazing Interlock roof installed! Not at this time Not at this time

★★★★★
Review: January 16, 2024Completion: December 20, 2023

Interlock Roofing-Seattle provided professional service and the people are easy to work with. If there are any issues on your side, they'll take care of it, and also answer your questions. It is a little difficult to interface with the Ukrainian workers, but it worked out using a translation app to communicate. They'll get better as they go, so it's not an issue; everybody needs to work! They have great workers and there were no problems. For composition type roofing, they do need a better magnet to pick up the nails. They could have improved the communication and clean-up pertaining to picking up nails. It was a great experience! They have great crews!

★★★★★
Review: June 17, 2017Completion: May 12, 2017

It would have been nice to know the pricing of the skylights up front. It was very confusing when we were discussing them because there was a lot of back and forth. My house looks beautiful. The job was complicated and they did a great job.

★★★★★
Review: August 31, 2016Completion: June 10, 2016

I don't know that there was anything that could have been done better. It looks beautiful. I have had dozens of compliments. Everything is functioning well during bad weather. I give the entire experience an A+! I have to also add, Jonathan, our sales representative was also very charming, lovely, and easy to work with. Lastly, there was a lovely woman from British Columbia in the office who was very nice. The entire experience was very nice!

★★★★★
Review: April 10, 2019Completion: April 10, 2019

I liked their presentation. They had samples and were very knowledgeable and prepared.

★★★★★
Review: February 28, 2015

I would like to go with them, but I haven't yet because of different things I found on the internet regarding the warranty and how other people's reviews state that the roofs leak and the company doesn't follow through with replacing the roof.

★★★★★
Review: April 17, 2018Completion: April 2, 2018

The crew could have improved a little bit by better communicating their schedule, but every time that we asked them, they certainly told us exactly what was going on because they had some weather complications which were not their fault.

★★★★☆
Completion: December 9, 2015

We had ordered an opening skylight, when it came it did not fit. The roofers put in a non opening one and said they would try to find one that fit. To this date we have not heard from them, or the company regarding that skylight. It seems there should be a refund of the difference in the price between the non-opening one and the opening one. I am happy with the roof, I just want either a skylight that opens or a refund of the difference in the price.

★★★★☆
Review: September 3, 2025Completion: July 31, 2025

see above

★★★★☆
Review: September 13, 2017Completion: August 4, 2017

I used them 10 years ago and I didn't have any problems but this situation is not good. They are not trying to fix the situation. The communication is one place they can improve by calling back their customers. I think they need to give a full disclosure of the products and the materials they used. I haven't been able to get a break down of the materials they used on my project. I just hope they really did my roof properly and didn't leave other pieces of rotten wood up on the roof covered up. I am hoping that the roof is done honorable and I am not having to contact them in 5 years with problems because they didn't put the roof up properly.

★★★★☆
Review: December 9, 2015Completion: November 22, 2015

We had ordered an opening skylight, when it came it did not fit.

Read all Washington metal roofing reviews →

Nearby service areas in King County

Interlock® metal roofing is also installed in these communities near Cedar Falls:

Interlock Metal Roofing (PNW) Inc. also services nearby States

Beyond Cedar Falls, our team installs Interlock® metal roofing across:

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