Across King County, mold-affected material demo per sf is currently landing between $1.41 and $1.67 per square foot, with most quotes near $1.55. Mold work is priced by containment, treatment, and affected area, following IICRC practice. 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, mold-affected material demo per sf is currently landing between $1.41 and $1.67 per square foot, with most quotes near $1.55. Mold work is priced by containment, treatment, and affected area, following IICRC practice. 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 mold-affected material demo per sf in King County is $1.41–$1.67 per square foot, based on 16+ real local contractor quotes.
Compare it to the live King County range above ($1.41–$1.67 per square foot). Below $1.41 you may be underpriced; above $1.67 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.