Washington contractor license
A1 PLUMBING LLC
- PC-02 Residential
A1 PLUMBING LLC is a PC-02 Residential contractor in Mount Vernon, licensed in Washington for 1 year (since 2025). As of Oct 28, 2026, the license is active with an expiration date of Oct 6, 2027 on record and a license bond is on file.
A1 PLUMBING LLCPC-02 Residential · checked Oct 28, 2026
ActiveLicense number#A1PLUPL752O2
Licensed sinceOct 6, 2025
Years licensed1 year
Expiration on recordOct 6, 2027
City and countyMount Vernon
License bondOn file
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Source: Washington State Department of Labor & Industries (L&I) contractor records. Last updated Oct 28, 2026. Page refreshed Nov 4, 2026.