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State files updated Oct 29, 2026
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Washington contractor license

Graham Plumbing/Mechanical Inc

Graham Plumbing/Mechanical Inc of Lynnwood holds Washington license GRAHAPI793O7 (PC-01 Journey Level). The L&I file dated Oct 29, 2026 lists it as active.1 It expires Oct 26, 2027.

Licensed 5 years, longer than 73% of 34 active Lynnwood plumbing contractors.

Active

Graham Plumbing/Mechanical Inc, Lynnwood

License
GRAHAPI793O7
Class
PC-01 Journey Level
Expires
Oct 26, 2027
Bond
$6,000
Liability insurance
$1,000,000 to Jun 2, 2027

L&I file dated Oct 29, 2026

From the L&I file dated Oct 29, 2026. Not a consumer report; check the board before you hire.

What bond, insurance and workers' comp are on file?

Bond
$6,000Nationwide Mutual Ins Co, from Oct 7, 2025, continuous
Liability insurance
$1,000,000Country Mutual Ins Co, from Jun 2, 2021, to Jun 2, 2027
Workers' comp
Not in the L&I fileCheck with the board

What work does this license cover?

License level: Plumbing Contractor. Issued Oct 26, 2021.

What other licenses does this business hold?

Which other Lynnwood businesses hold PC-01 Journey Level?

Washington plumbing contractors

What should you check before hiring?

What to ask before you hire

  1. Get the license number in writing. The name on the license should match the name on your contract and invoice.
  2. Check the class covers the job. A license for one trade doesn't cover another. Washington license classes
  3. Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
  4. Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. The L&I file doesn't record workers' comp, so ask for the certificate.
  5. Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.

If the license is lapsed

  1. Don't sign or pay a deposit until the L&I shows the license active again.
  2. Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the L&I, then check again.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Department of Labor and Industries (L&I).
  4. Check another contractor. Washington license lookup

Sources

  1. L&I contractor license data (data.wa.gov, Oct 29, 2026)
  2. Department of Labor and Industries (L&I)