Across King County, ice & water shield is currently landing between $119 and $125 per roofing square (100 sq ft), with most quotes near $125. Roofing is priced by the roofing square (100 sq ft) or by component; pitch, layers, and access change the number. These figures come from real contractor submissions and market data — not a national average — so they reflect Puget Sound labor and material costs. Check your own number free to see whether you're under, in range, or leaving money on the table.
Across King County, ice & water shield is currently landing between $119 and $125 per roofing square (100 sq ft), with most quotes near $125. Roofing is priced by the roofing square (100 sq ft) or by component; pitch, layers, and access change the number. These figures come from real contractor submissions and market data — not a national average — so they reflect Puget Sound labor and material costs. Check your own number free to see whether you're under, in range, or leaving money on the table.
The going rate for ice & water shield in King County is $119–$125 per roofing square (100 sq ft), based on 12+ real local contractor quotes.
Compare it to the live King County range above ($119–$125 per roofing square (100 sq ft)). Below $119 you may be underpriced; above $125 and you'll want to justify the premium. Check your exact number free on The Going Rate.
See all King County trade rates · check any price free
The Going Rate · Independent King County contractor pricing benchmark. Anonymous. Built from real contractor data.