King County
Roofing in Mercer Island, WA
Roof replacement, repair, inspection and moss removal for Mercer Island homes — with 14+ years of experience on Washington roofs behind every job.
Mercer Island is an island in Lake Washington with one of the heaviest tree canopies of anywhere we serve. Its housing runs from mid-century homes to large custom construction, much of it on sloped, wooded lots.
The canopy is the defining condition here. It shapes almost every roofing decision on the island.
What Mercer Island roofs deal with
The heaviest shade of any city we serve
Mature trees cover most of the island. Roofs stay damp, moss establishes fast and grows thick, and slopes that never see direct sun can lose years of service life to organic growth alone.
Constant debris load
Tree cover this dense means valleys and gutters fill continuously, not seasonally. Cleaning schedules that work elsewhere in the region are not frequent enough here.
Overhanging limbs
Branches resting on or near a roof abrade the shingle surface every time the wind moves them, and they give moss a direct bridge onto the roof. On the island this is a routine finding, not an exception.
Available in this area
What we do in Mercer Island
Roof Replacement
A complete new roof when repairs stop being worth it — tear-off, deck inspection, and installation done to manufacturer spec.
Roof Repair
Leaks, wind damage, failed flashing, and missing shingles — fixed properly, so the same spot does not come back next winter.
Roof Inspection
A documented look at the real condition of your roof — for maintenance, a home sale, an insurance claim, or your own peace of mind.
Roof Cleaning
Moss, algae, and organic buildup removed without destroying the shingle — the single highest-value maintenance job in this climate.
Gutter Cleaning
Gutters and downspouts cleared so water leaves the roof and the foundation the way it was designed to.
Gutter Replacement
New gutters and downspouts, sized and pitched so the system actually moves the water your roof sheds.
Need a roofer in Mercer Island?
Tell us what you are seeing and we will come take a look. If it can be repaired, we will say so.