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Plumbers in Bellingham, WA
28 plumbers with a Bellingham business address are registered with Washington L&I (Whatcom County). Registration means the state holds a bond and proof of liability insurance for each of them. Check any pro below before you hire.
Updated October 16, 2026 from the state register
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Before you hire
28 registered plumbers
L&I register, Oct 16, 2026. A–Z. Listing isn't a recommendation.
Show all 28
Common problems
Other pros in Bellingham
Common questions
How many plumbers are registered in Bellingham?
28 with a Bellingham business address, as of October 16, 2026. Many more from nearby towns also work in Bellingham.
How do I check a plumber's registration?
Ask for their registration number and look it up on Check a contractor or L&I's Verify a Contractor. An active registration means they carry the bond and liability insurance the state requires.
Does Check the Pro send my request to several companies?
No. Each request goes to one registered local pro. If they can't take it, we find another.
Sources
Washington L&I contractor license data · The state's public register, refreshed here daily.
L&I Verify a Contractor · The official lookup, with bond, insurance and lawsuit details.
“Each applicant shall file with the department a surety bond issued by a surety insurer who meets the requirements of chapter 48.28 RCW in the sum of $30,000 if the applicant is a general contractor or $15,000 if the applicant is a specialty contractor.”
“the applicant shall furnish insurance or financial responsibility in the form of an assigned account in the amount of fifty thousand dollars for injury or damages to property, and one hundred thousand dollars for injury or damage including death to any one person, and two hundred thousand dollars for injury or damage including death to more than one person.”
“Contractor includes any person, firm, corporation, or other entity who or which, in the pursuit of an independent business undertakes to, or offers to undertake, or submits a bid to, construct, alter, repair, add to, subtract from, improve, develop, move, wreck, or demolish any building...”