Plumbing contractors in Mount Vernon, WA

25 contractors · Updated Sep 27, 2026

Plumbing contractors install and repair the water supply, drain, waste, and vent systems that carry water through a building. Washington currently lists 25 Plumbing contractors registered in Mount Vernon.

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Claimed and verified listings appear first.

A1 Plumbing LLC

Listed

Residential · Mount Vernon, WA

License #A1PLUPL752O2 · $6,000 bond

Absolute Plumbing

Listed

Journey Level · Mount Vernon, WA

License #ABSOLP*799MB · $6,000 bond

All Clear Plumbing LLC

Listed

Residential · Mount Vernon, WA

License #ALLCLCP785RH · $6,000 bond

All Time Plumbing & Htg LLC

Listed

Journey Level · Mount Vernon, WA

License #ALLTITP759LT · $6,000 bond

Barker Drilling LLC

Listed

Domestic Pump · Mount Vernon, WA

License #BARKEDLA682L · $6,000 bond

Booker's Plumbing LLC

Listed

Residential · Mount Vernon, WA

License #BOOKEPL796NQ · $6,000 bond

Delk's Plumbing LLC

Listed

Journey Level · Mount Vernon, WA

License #DELKSPL775BZ · $15,000 bond

Experience Plumbing LLC

Listed

Journey Level · Mount Vernon, WA

License #EXPERPL795PE · $6,000 bond

Frees Plumbing Service LLC

Listed

Journey Level · Mount Vernon, WA

License #FREESPS798OS · $6,000 bond

Hoover Cmrcl Refrigeration INC

Listed

Journey Level · Mount Vernon, WA

License #HOOVECR742OP · $6,000 bond

J & H Plumbing Services INC

Listed

Residential · Mount Vernon, WA

License #JHPLUHP772MF · $6,000 bond

Lowe LLC

Listed

Journey Level · Mount Vernon, WA

License #LOWELL*780O7 · $6,000 bond

Mike's Repair

Listed

Domestic Pump · Mount Vernon, WA

License #MIKESR*782KD · $6,000 bond

NW Custom Plumbing LLC

Listed

Residential · Mount Vernon, WA

License #NWCUSCP791RM · $6,000 bond

Newton's Plumbing

Listed

Journey Level · Mount Vernon, WA

License #NEWTOP*788B7 · $6,000 bond

Rmi Plumbing LLC

Listed

Journey Level · Mount Vernon, WA

License #RMIPLPL769BW · $6,000 bond

Robert's Plbg/HM Impr Svcs INC

Listed

Residential · Mount Vernon, WA

License #ROBERPI773DF · $6,000 bond

Z's Plumbing LLC

Listed

Residential · Mount Vernon, WA

License #ZSPLUPL759O6 · $6,000 bond

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Built from Washington State L&I public records, updated Sep 27, 2026. Subser doesn't do star ratings or reviews — just verified records.