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State files updated Oct 31, 2026
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Washington contractor license

Sw1 Plumbing & Mechanical LLC

Sw1 Plumbing & Mechanical LLC of Kirkland holds Washington license SW1PLPM797O7 (PC-01 Journey Level). The L&I file dated Oct 31, 2026 lists it as active.1 It expires May 5, 2028.

Licensed 4 years, longer than 52% of 2,012 active Washington plumbing contractors.

Active

Sw1 Plumbing & Mechanical LLC, Kirkland

License
SW1PLPM797O7
Class
PC-01 Journey Level
Expires
May 5, 2028
Bond
$6,000
Liability insurance
$1,000,000 to Mar 18, 2027

L&I file dated Oct 31, 2026

From the L&I file dated Oct 31, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the L&I file dated Oct 31, 2026. Confirm with the board: L&I contractor lookup

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

Bond
$6,000North River Insurance Company The, from Sep 9, 2023, continuous
Liability insurance
$1,000,000Contractors Bonding & Insuranc, from Mar 18, 2026, to Mar 18, 2027
Workers' comp
Not in the L&I fileCheck with the board

What work does this license cover?

License level: Plumbing Contractor. Issued May 5, 2022.

What other licenses does this business hold?

Which other Kirkland 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 31, 2026)
  2. Department of Labor and Industries (L&I)