About us
The Oregon team behind your last roof.
Interlock Metal Roofing (PNW) Inc. has installed one roofing system on Pacific Northwest homes since 1997. Our Oregon work is run from our Portland office.
1,632
Completed Oregon roofs in our job book
4.8 ★
Across 600 rated Oregon reviews
A+
BBB accredited since November 3, 2011
1997
Founded October 29, 1997
1
Oregon office, in Portland
One product, one promise
We install one thing, and that focus is the point.
We install the Interlock® roofing system: interlocking aluminum panels manufactured by Interlock Roofing. We are not a general roofing company that also offers metal. This system is all we do, and we have done it in the Pacific Northwest since 1997.
West of the Cascades, an Oregon roof spends much of the year wet. The rainy season runs from fall into spring, and moss and lichen take hold on shaded asphalt and cedar. The coast adds salt air and winter storms, the Columbia River Gorge sends east wind and the occasional ice storm toward Portland's east side, and east of the Cascades and in southern Oregon, wildfire season makes the roof the largest surface an ember can land on. Aluminum absorbs no water, contains no iron to rust, gives moss no gritty surface to root in, and locks on four sides with the fasteners covered. Class A Fire Rated Available, as a complete assembly. Every roof carries the manufacturer's Guardian Lifetime Limited Material Warranty, which transfers once when you sell.
Where we stand
One system, installed in the Pacific Northwest since 1997
Since 1997
Interlock Metal Roofing (PNW) Inc. was founded on October 29, 1997, and the Better Business Bureau accredited it on November 3, 2011. The company has installed one roofing system from the start, and the job book lists its completed roofs town by town.
One system
We install the Interlock® roofing system and nothing else: heavy-gauge aluminum panels made by Interlock Roofing, locked on all four edges with the fasteners concealed. We are the certified and exclusive Interlock® installer in Oregon, Washington and Idaho.
Made in North America
The panels are manufactured by Interlock Roofing at its plant in Delta, BC. We sell, install and answer for them from our Portland office, so the people who quote your roof are the company that puts it on.
Oregon
1,632 completed, published Interlock® roofs in Oregon since 1997. The towns with the most are Portland, Salem, Eugene, Hillsboro and Beaverton, and each town page shows the record for that town.
Checkable
Our registrations are public. Oregon Construction Contractors Board (CCB) License #130826, Washington State Contractor Registration (L&I) #INTERMR75406 and Idaho General Contractor Registration (DOPL) #6181938. For renovation work on homes built before 1978 we hold an Oregon CCB Lead-Based Paint Renovation license and a Washington Department of Commerce RRP firm certification. Ask any roofer for the same documents, and check them on the state's own website.
Credentials
Licensed, accredited and accountable, in writing
Every claim on this page can be checked against a public record, a standards body, or the warranty document itself.
Licensed in Oregon, Washington and Idaho
Oregon Construction Contractors Board (CCB) License #130826, Washington State Contractor Registration (L&I) #INTERMR75406 and Idaho General Contractor Registration (DOPL) #6181938. Each one can be looked up on the state's own register: Oregon CCB contractor search, Washington L&I “Verify a Contractor” and Idaho DOPL public license search. For pre-1978 homes we also hold Oregon CCB Lead-Based Paint Renovation license LBPR-130826 and Washington RRP firm certification R7896.
BBB A+, accredited since 2011
Interlock Metal Roofing (PNW) Inc. has been a BBB Accredited Business since November 3, 2011, rated A+. The profile is public and shows every complaint and our response. We are also a Metal Roofing Alliance member and a GuildQuality member, and we received the GuildQuality Guildmaster Award in 2025.
Made in North America
Every Interlock® panel we install is manufactured by Interlock Roofing at its plant in Delta, BC, and installed by our own company from our Portland office. The manufacturer makes the panels and issues the material warranty; we sell, install and service the roof.
One product, described accurately
Aluminum with up to 95% recycled content, roughly 0.4 to 0.7 lb per square foot depending on profile, four-way interlocking panels with concealed fasteners, and the AAMA 2605 Alunar® coating system. Class A Fire Rated Available, as a complete assembly. Minimum 3/12 roof slope on every profile.
Our own proof, nobody else's
Every review on this site is from a Oregon homeowner, 600 of them, and every completed roof in this site's job book is a Oregon roof. Nothing is borrowed from another state or country to make the page look fuller.
A material warranty that transfers
The manufacturer's Guardian Lifetime Limited Material Warranty covers material and finish for the original purchaser while they own the home, and transfers once: the second owner is covered to 50 years from substantial completion. Workmanship is excluded from it. Read the terms and exclusions before you sign.
Offices and local lines
Our Portland office. A line for each state.
Mon–Fri: 9:00 AM – 5:00 PM, Pacific time. Sales visits are by appointment, at your home or on Zoom. Toll-free: 1-866-733-5811.
Licensed in Oregon, Washington and Idaho: Oregon · Washington · Idaho
FAQs
About us, answered directly
Who installs Interlock metal roofs in Oregon?
Interlock Metal Roofing (PNW) Inc., from our Portland office (1355 NW Everett St, Portland, OR 97209). We are the certified and exclusive Interlock® installer in Oregon, Washington and Idaho, in business since 1997, serving Oregon and southwest Washington.
Is Interlock Metal Roofing (PNW) Inc. the same company as the manufacturer?
No. Interlock Roofing manufactures the panels at its plant in Delta, BC, and issues the Guardian material warranty. We are the Pacific Northwest company that sells, installs and services them, from our Portland office.
Are you licensed in my state?
Yes, in all three states we work in. Oregon Construction Contractors Board (CCB) License #130826, Washington State Contractor Registration (L&I) #INTERMR75406 and Idaho General Contractor Registration (DOPL) #6181938. Look each one up yourself on the state's register (Oregon CCB contractor search, Washington L&I “Verify a Contractor” and Idaho DOPL public license search) rather than taking a number on trust, and ask any contractor for a certificate of insurance that comes directly from their insurer.
How long have you been in business?
Since October 29, 1997. Interlock Metal Roofing (PNW) Inc. has been a BBB Accredited Business since November 3, 2011 and holds an A+ rating.
How many roofs have you installed in Oregon?
Our job book lists 1,632 completed, published Interlock® roofs in Oregon since 1997. Portland, Salem, Eugene, Hillsboro and Beaverton have the most. Each town page shows the record for that town, including the profiles and colors chosen there.
Who manufactures the roofing you install?
Interlock Roofing, at its plant in Delta, BC. The panels are aluminum with up to 95% recycled content, interlock on all four edges and carry the Alunar® coating system. The manufacturer publishes its test reports and certifications at interlockroofing.com.
Does an aluminum roof hold up near salt water?
Yes, and that is the main reason we install aluminum near the water. Aluminum contains no iron, so salt air on the Oregon Coast has nothing to rust. The fasteners are concealed, and flashings and trim are checked as part of the roof.
Can you roof a house in a historic district?
Often, but the decision belongs to the city, not to us. Check with your local historic landmarks commission before you sign, because a change of roofing material may need its review. We can supply profile samples, colors and product documents for the application.
Meet us on your roofline.
An on-site assessment, a written price after your roof consultation, and a straight answer about scheduling before you commit to anything.
