Washington ContractorCheck

Check a Washington contractor's licence, bond and insurance

We list contractors the state shows as active, with a current bond on file and, for construction and plumbing contractors, current liability insurance. Amounts, sureties and expiry dates come straight from Washington L&I's public records.

42,185contractors listed
42,185verified
544cities
2026-09-30last data refresh
Why bond and insurance? Washington requires construction contractors to register with L&I and to file a bond and liability insurance. The bond can be claimed against by customers, suppliers and workers; the insurance covers damage the work causes. We show both as dated facts so you can compare contractors before you sign.

Browse by trade

Electrical contractors4,091 contractorsPlumbing contractors1,829 contractorsHVAC contractors622 contractorsRoofing contractors419 contractorsTree service544 contractorsExcavation & side sewer423 contractorsGeneral contractors & remodelers31,598 contractorsConcrete & masonry915 contractorsSiding & gutters474 contractorsFencing192 contractorsFraming, drywall & insulation702 contractorsGarage doors & gates183 contractorsWindows & glazing193 contractors

Top cities

Seattle, WA2,283 contractorsVancouver, WA1,824 contractorsSpokane, WA1,654 contractorsTacoma, WA1,364 contractorsEverett, WA1,057 contractorsAuburn, WA900 contractorsKent, WA851 contractorsPuyallup, WA769 contractorsBellingham, WA747 contractorsRenton, WA740 contractorsOlympia, WA722 contractorsSnohomish, WA706 contractorsLynnwood, WA690 contractorsKennewick, WA619 contractorsYakima, WA594 contractorsFederal Way, WA574 contractorsBellevue, WA546 contractorsMarysville, WA520 contractorsPasco, WA517 contractorsBothell, WA494 contractorsKirkland, WA442 contractorsBattle Ground, WA406 contractorsSpokane Valley, WA393 contractorsLake Stevens, WA383 contractors

See all 544 cities →

Guides

How to verify a Washington contractor's registration, bond and insuranceRegistration vs licence, the L&I verification tool, what bond and insurance status mean, and why an unregistered contractor cannot sue you for payment.What a Washington contractor's bond and insurance actually protectThe $30,000 and $15,000 bonds, who can claim against them, the minimum liability insurance, the disclosure statement you must be given and how liens and retainage fit in.Hiring a contractor for a roof, tree removal, side sewer, electrical or HVAC job in WashingtonWhich registration or licence to look for on each common job, what to ask, and how the trade categories on this site map to L&I's specialties.Bids, contracts and permits for Washington remodels and ADUsHow to get comparable bids, what to put in a written contract, when a permit is needed and where accessory dwelling units fit.

Where this data comes from

Every listing starts from public records — L&I contractor registrations (data.wa.gov m8qx-ubtq), L&I contractor bond filings (bzff-4fmt), L&I contractor insurance filings (ciwg-agsx), L&I contractor verification tool — not from who paid to be listed. A Licensed, bonded & insured badge means we matched the business to an active public record, dated. Read the methodology →

Common questions

Does a contractor need to be registered in Washington?

Yes. Construction contractors must register with the Department of Labor & Industries under chapter 18.27 RCW, and electrical and plumbing contractors hold their own licences. An unregistered contractor may not sue to collect payment (RCW 18.27.080), and acting as one without registration is a gross misdemeanor.

How much bond do Washington contractors carry?

By law general contractors file a $30,000 bond and specialty contractors $15,000, naming the State of Washington. Electrical contractors file $4,000. The bond is shared by all of the contractor's customers, suppliers and workers, so it may not cover your loss.

What liability insurance is required?

Construction contractors must show at least $50,000 for property damage, $100,000 for injury to one person and $200,000 for injury to more than one person (RCW 18.27.050). Many carry $1 million. If the policy lapses, the registration is suspended until new coverage is filed.

Why are some electricians shown without insurance?

Electrical contractors file a $4,000 bond and proof of workers' compensation with L&I, not a liability policy. Ask for a certificate of insurance and check that a permit is pulled.

What is the disclosure statement?

For residential projects of four or fewer units with a contract of $1,000 or more, RCW 18.27.114 requires the contractor to give you a written statement about registration, the bond, retainage and lien rights before work begins.

Does this site list every Washington contractor?

No. It lists the trades homeowners hire most, and for general contractors those registered in 2023 or earlier with a bond and insurance on file. Check L&I's verify tool for any contractor.