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Blog / Snohomish County

When to Replace Your Roof in Western Washington

By the Larchmont crew · June 2026 · 4 min read

A roof rarely fails all at once. It gives you signs first. In our wet, mossy climate those signs show up sooner than the shingle warranty would suggest. Here is what to watch for.

Age and the shingle warranty

Most asphalt roofs here are rated for a couple of decades, but constant rain and moss age them faster than a dry climate would. If your roof is past the fifteen year mark and you're seeing other signs, it's worth a look.

Curling, bald spots, and grit in the gutter

Shingles that curl at the edges or go bald have lost their protection. A gutter full of granules, the sandy grit off the shingles, is a sign the surface is wearing out. From the ground you can often spot the curl on a sunny day.

Moss and what it hides

Moss is not just ugly here, it holds water against the roof and works into the seams. Under a heavy moss mat there is often soft decking you cannot see. Western Washington roofs collect it on the north side first.

Leaks and daylight in the attic

Stains on the ceiling, or daylight through the attic boards, mean water is already getting in. At that point a repair is a patch on borrowed time. We get on the roof, check the decking, and give you a plain answer, repair or replacement.

Common questions

How long does a roof last in Western Washington?Often a bit less than the shingle rating because of the rain and moss. Many asphalt roofs here are ready between fifteen and twenty-five years, sooner if moss was left to sit.
Can I just repair it instead of replacing?Sometimes, if the damage is small and the decking is sound. We check underneath first and only call for a full replacement when a patch would not hold.
Want a straight verdict on your roof?

Plenty of roofs we climb just need a repair, and when that's true it's what we quote. If yours is done, you'll hear why, with the decking checked and the replacement priced in a free written quote.

Start with a roof check →
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