Plumbing contractors in Oak Harbor, WA

12 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 12 Plumbing contractors registered in Oak Harbor.

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Claimed and verified listings appear first.

CK Backflow LLC

Listed

Backflow Specialty · Oak Harbor, WA

License #CKBACBL748BG · $6,000 bond

Golden Plumbing PLLC

Listed

Journey Level · Oak Harbor, WA

License #GOLDEPP799MF · $6,000 bond

Harbor Plumbing South LLC

Listed

Journey Level · Oak Harbor, WA

License #HARBOPS790MG · $6,000 bond

Precision Plmbng & Bckflw Tstg

Listed

Journey Level · Oak Harbor, WA

License #PRECIPB799O9 · $6,000 bond

R And L Plumbing

Listed

Residential · Oak Harbor, WA

License #RLPLULP769DO · $6,000 bond

Rocky Point Plumbing & Maint

Listed

Residential · Oak Harbor, WA

License #ROCKYPP787LP · $6,000 bond

Scottie's Plmbg & Repair INC

Listed

Journey Level · Oak Harbor, WA

License #SCOTTPR793NR · $6,000 bond

Scottie's Plumbing LLC

Listed

Residential · Oak Harbor, WA

License #SCOTTPL743N4 · $6,000 bond

Three Drakes Mech & Plumbing

Listed

Residential · Oak Harbor, WA

License #THREEDM777BE · $6,000 bond

Tubular Plbg/Grn Thmb Grdn Prj

Listed

Journey Level · Oak Harbor, WA

License #TUBULPT791PH · $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.