Across King County, smoke + co detector install is currently landing between $270 and $350 per job, with most quotes near $325. Electrical pricing reflects code-compliant work, permits where required, and licensed labor. 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, smoke + co detector install is currently landing between $270 and $350 per job, with most quotes near $325. Electrical pricing reflects code-compliant work, permits where required, and licensed labor. 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 smoke + co detector install in King County is $270–$350 per job, based on 36+ real local contractor quotes.
Compare it to the live King County range above ($270–$350 per job). Below $270 you may be underpriced; above $350 and you'll want to justify the premium. Check your exact number free on The Going Rate.
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The Going Rate · Independent King County contractor pricing benchmark. Anonymous. Built from real contractor data.