LIMITED TIME OFFER

Spring Savings Event

3 Months — No Payments, No Interest

Book Your Roof Project this Spring and Save at Least $3350 on the Last Roof You Will Ever Need.

Price + financing discount expires March 31, 2024.

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*Cannot be combined with any other promotional offers or discounts. Offer valid for this promotion only. Discount cannot be applied to previous purchases. Price discounts depend on size and location of your home. Minimum 12 Sq. purchase required for discount offered. Must purchase an Interlock Lifetime Roofing System to qualify. Available only at time of purchase. Offer not valid if contract cancels. Offer does not apply to contract amendments. Offer expires March 31, 2024. Offer only available in Washington and Oregon.

Interlock® Metal Roofing

Lifetime Warranty

Exclusive Installer of the Interlock® Lifetime Metal Roofing System in Seattle, WA.

A Trusted Seattle Metal Roofing Company Since 1997

Interlock Industries, Inc. is proudly celebrating 26 Years in the Pacific Northwest.

Interlock Industries, Inc. is proudly celebrating 25 Years of metal roof installations in Seattle, Washington
NBC Seattle, WA
CBS Seattle, WA
FOX Seattle, WA

Say goodbye to your roofing worries forever with an Interlock Lifetime Roofing System, designed to withstand the demanding weather conditions of the West Coast.

Metal roofing is an ideal option for homeowners seeking a long-lasting and attractive solution that can endure even the harshest weather conditions. With its designer colours, metal roofing can enhance your home's visual appeal while also providing energy efficiency.


All Interlock Lifetime Roofing Systems comes with an exclusive Lifetime Limited Warranty that can be transferred once, giving you peace of mind knowing that your investment is protected. Additionally, metal roofing is perfect for the coastal regions, where traditional steel roofing would corrode.


So, if you're looking for a roofing system that will last for a lifetime, contact us today to learn more about Interlock Lifetime Roofing Systems!

Metal Roofing Seattle

Never Re-Roof Again.® with Washington's Best Roof

Interlock Industries, Inc. services Western Washington including Seattle, Tacoma, Vancouver, Bellevue, Kent, Everett, Renton, Federal Way, and Bellingham.

Choose from five durable metal roof profiles, including Slate, Cedar Shingle, Shake, Mediterranean Tile, and Standing Seam. All profiles are available in heavy gauge aluminum and solid copper. With the addition of solar brackets, all our roofing systems are solar-compatible.

Very pleased with the Interlock Metal Roofing system installed on our home

★★★★★ Posted on Google

Positive: Professionalism, Quality


I am very pleased with the Interlock Metal Roofing system installed on our home. The entire staff was very polite, courteous and professional. The work was performed with quality in mind and done in a timely manner. The installation crew put in 4 long days and worked very hard. They were very meticulous about leaving our property very clean after they had completed the work and spent extra time looking for any small stray hardware that may have fallen into the lawn. I just have to say it was a job well done.


Services: Roof installation, Roof damage repair

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Industry Partnerships

Interlock Metal Roofing is proud to be members ​with the following roofing industry partners​.

Interlock Lifetime Roofing Systems WA
Save at least $3250

Aluminum Roofing engineered for Life on the West Coast.

Trusted for over 26+ years with over 5,545 lifetime roof installations across the Pacific Northwest.

Cedar Shake Roof Tear-Off Replacement
Cape Cod House with Metal Roof Aluminum Shingles
  • Allyn WA Interlock Metal Roofing Tudor Brown Aluminum Slate Roof
  • Langley WA 98260 Interlock Metal Roofing Black Aluminum Slate Roof
  • Alunar Coating System logo
    CRRC Cool Roof Rating Council rated product

    All Interlock Lifetime Metal Roofing Systems are protected with the Alunar® Coating System. The cool roof pigment technology helps reduce heating and cooling costs for your home.

    Alunar Coasting System diagram

    Interlock’s reflective surface actually reduces your attic's temperature during summertime heat, saving you up to 25% on your cooling costs†.


    † As per Cool Roof Rating Council (CRRC) and Oak Ridge National Laboratories (ORNL)

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    Common Questions

    See some common FAQ's below, or call us Toll-Free 1-866-733-5811

    • What are your business hours?

      Monday-Friday 9 AM- 5 PM

      Our crews are available 7 days a week.

      Our Sales Agents are available 7 days a week.


      Please call or inquiry to make an appointment

    • Can I add solar panels to an Interlock Metal Roofing System?

      All our products are solar compatible. Our solar brackets can be installed to house solar crystalline panels.

    • How much does an Interlock Metal Roofing System cost?

      Our product is not an off-the-shelf roofing material. Plus the installation procedures vary from structure to structure. For instance, a home with a 3/12 pitch is easier for our installers to work on; therefore, labour costs will be less expensive. A home with no valleys, chimneys, skylights, or dormers will also be less expensive. Please contact Rachelle for pricing info. 


      Please visit our knowledgebase for more information:

    • Are metal roofs loud?

      Our customers keep telling us that their new Interlock Roof is no noisier than their previous asphalt shingle roof. 


      Please visit our knowledgebase for more information:

    • Do you offer financing?

      Yes! We offer affordable monthly, bi-weekly and weekly payment options for your purchase. Visit our Financing page for more info.

    • Does a metal roof attract lightning?

      No, a metal roof will not make lightning more likely to strike, but it may make a lightning strike less dangerous if it occurs. A conductive metal roof gives lightning a low-resistance path to the earth.

    • Are metal roofs hot?

      All Interlock Metal Roofs are coated with the Alunar® Coating System. The "Cool Roof" ceramic pigment technology in the coating reflects and emits more of the sun's UV rays from entering the attic space. Interlock Metal Roofing Systems are CRRC-rated (Cool Roof Rating Council).

    • Do metal roofs protect against hail?

      All Interlock® Roofs are made from heavy gauge aluminum which has been tested and has surpassed the industry standard measurement for impact resistance: UL 2218 — Standard for Impact Resistance of Prepared Roof Covering Materials.

    • Can you walk on a metal roof?

      While it is safe to walk on, in accordance with manufacturers’ instructions, the low-maintenance Interlock® Roof almost eliminates that need. 

    • What metal is an Interlock Roof made from?

      All Interlock® Roofs are available in heavy gauge aluminum coated with the Alunar® Coating System.


      In addition, solid copper is also available in all profiles.

    • Can I install an Interlock Roof myself?

      While some of us enjoy a good DIY project, to keep the integrity of our Lifetime Limited Warranty we only use certified Interlock crews for installation.

    • Is Interlock Roofing available in my area?

      Interlock Metal Roofing is available in Western Washington and Oregon.

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