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Records copied from Washington State L&I and the Oregon Construction Contractors Board.

Licence classification

Insulation And Acoustical contractors in Washington

Records the state files classify as “Insulation And Acoustical”. The classification is the agency's own, not a category we assigned.

139 records·Washington L&I 139·Oregon CCB 0·WA data as of July 2026

139 total recordsHide expired
Spokane9Puyallup8Seattle5Renton4Vancouver4Mount Vernon3Spanaway3Tacoma3Yakima3Bellingham2Bremerton2Burlington2

Showing 126–139 of 139 records

What this classification means

Washington and Oregon issue different legal instruments. A Washington registration under “Insulation And Acoustical” is a contractor registration with L&I; an Oregon licence under a comparable endorsement is issued by the CCB. They are not the same credential and neither one transfers to the other state — a contractor working both sides of the river needs both. This page reproduces whichever classification the agency recorded, verbatim.

139Records in this classification
139Washington
0Oregon
SpokaneLargest concentration

Insulation And Acoustical contractors by city

Spokane9Puyallup8Seattle5Renton4Vancouver4Mount Vernon3Spanaway3Tacoma3Yakima3Bellingham2Bremerton2Burlington2

Verify any record directly with the issuing agency: WA L&I Verify a Contractor · Oregon CCB licence search

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Published by PNW Contractor Marketing, SeaTac, Washington. This directory reproduces public licence records and is not affiliated with, endorsed by, or operated by any state agency.Washington data as of July 2026. Sources & method