Common roof problems in Seattle and what the repair costs

Seattle gets 36.5 inches of precipitation a year in the 1991-2020 normals at the Boeing Field station, so the main roof problem here is steady moisture, not impact. Hail is rare: NOAA Storm Prediction Center reports within 15 km put the metro in the Low band among the towns Roofers Hotline tracks. Ice dams are also Low risk, with 3.8 inches of snow and about 30 freezing days a year.

That leaves water getting in slowly through worn flashing, failing sealant around vents and chimneys, and shingles that stay damp. Wind adds to it: 2 thunderstorm-wind reports within 25 km since 2000 are enough to lift a loose shingle or a flashing edge, and the April 2026 declaration included straight-line winds.

Age matters too. In the metro, 54% of homes were built before 1980 (ACS 2019-2023), against 47% county-wide, and the median home dates to 1974. Older roofs and older flashing details are common here.

Start inside. Look at the ceilings below the roof, especially near chimneys, bathroom vents and the lowest corners of the attic. A brown ring, peeling paint or a musty smell tells you water has been getting in for a while. In the attic, check the underside of the roof deck for dark staining and damp insulation.

From the ground, look for shingles that are lifted, curled or missing, and for gutters packed with granules or debris. Moss holding moisture against the surface is common in a wet climate, and so is flashing that has pulled away from a wall or chimney.

Here is how one case goes. After a windy night in March, a homeowner sees a stain the size of a dinner plate on a bedroom ceiling. They check the attic with a flashlight and find wet insulation under a vent pipe. They photograph both, call for roof repair in Seattle and ask for a written estimate before any work starts. The repair is usually a new vent boot and a few replaced shingles, which is far smaller than the job it becomes after another winter of leaking.

Call right away if water is actively dripping, if a ceiling is sagging, or if shingles or flashing have blown off and left the deck exposed. Rain is frequent here, and an open section of roof can soak insulation and drywall within a single storm. Emergency tarping and leak repair are available 24/7 for exactly this.

After a storm like the one declared on April 7, 2026, with straight-line winds, flooding and landslides, check for fallen branches on the roof, gutters pulled from the fascia and any new daylight visible from the attic. Slides and heavy flooding can also damage the ground and structures around a home, so stay off a roof that looks unstable.

A small stain that does not grow can wait for a scheduled visit, but do not let it sit through the wet season. Insurance is a separate matter from the repair itself, and deductibles are never waived or rebated. Washington requires contractors, including roofers, to register with the Department of Labor and Industries (L&I). Look up any license at Washington L&I.