Washington roof replacement

What replacing a roof with us involves

It starts with one visit, at your house or on Zoom to begin. We measure the roof, look at the deck and framing where we can, go through profiles and colors with you, and you get a written price after your roof consultation. Anything that needs attention underneath goes into that written quote, not into a change order later.

On install day the Interlock® aluminum system goes on: panels that lock to each other on all four sides with the fasteners concealed, so there is no exposed screw head or loose edge for winter storms and wind-driven rain to work on.

Tear-off or roof-over?

Cedar shakes and shingles, concrete tile and natural slate always come off. A single layer of asphalt shingles can sometimes be roofed over, but only if our inspection finds the roof suitable: no rot, no soft decking, nothing trapped underneath that should come out. Years of moss and wet winters can leave soft decking under an old roof; if the roof isn't suitable, the tear-off and deck repairs are in the written price from the start.

Replacing asphalt, cedar or tile

Much of our work replaces asphalt shingles and cedar shakes on Craftsman, Tudor and mid-century homes, ramblers, and island and waterfront homes. Interlock's Slate, Cedar Shingle, Shake, Mediterranean Tile and Standing Seam profiles give you the look you want at roughly 0.4 to 0.7 lb per square foot, a fraction of the weight of slate or concrete tile. Every profile needs a minimum 3/12 roof slope.

We install one roofing system. We don't install asphalt shingles, so if you're comparing us with an asphalt re-roof, you're comparing a roof you'll replace again with one that shouldn't need it.

In a historic district, check with your local historic landmarks commission before you choose a profile and color. We bring samples and product documents you can take to that review.

Built for Washington weather

Months of rain, moss under the evergreens, salt air along Puget Sound and the coast, wind on exposed shorelines and snow in the Cascade foothills are what wear a roof out here. Aluminum absorbs no water and doesn't rot, so there is nothing in the panel for rain or freeze-thaw to soak or split, and it doesn't rust in salt air. Where snow sliding off would land on an entry, a deck or a walkway, we plan snow guards at the estimate.

Moss can grow on any roof that stays shaded and damp, metal included; Oregon State University Extension says it holds moisture and debris, and on asphalt it can lift shingles so water gets underneath. A smooth, interlocked aluminum roof has no shingle tabs to lift and no wood to rot, but trimming the trees that shade it and keeping the gutters clear are still part of owning it.

Check any roofer before you sign

Washington requires construction contractors to register with the Department of Labor & Industries (L&I) and to be bonded and insured: a $30,000 bond for a general contractor or $15,000 for a specialty contractor (since July 1, 2024), and liability insurance. L&I's "Verify a Contractor" lookup shows whether a registration is active, the workers' comp account, safety violations and lawsuits against the bond. For residential work of $1,000 or more on a home of four or fewer units, the contractor must give you a disclosure statement about its registration, bond and lien rights before work starts (RCW 18.27.114).

Our licenses and registrations: Washington — State Contractor Registration (L&I) #INTERMR75406; Oregon — Construction Contractors Board (CCB) License #130826; Idaho — General Contractor Registration (DOPL) #6181938.

The warranty, in plain language

The manufacturer's Guardian Lifetime Limited Material Warranty covers material and finish for the original purchaser for as long as they own the home, and transfers once: the second owner is covered to 50 years from substantial completion. Workmanship is excluded from that warranty; our 10 Year Limited Labor Warranty covers the installation. Ice damming is a stated exclusion of the material warranty. Read the full terms before you sign.

Wind resistance is warranted to 120 mph when installed to manufacturer specification.