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Washington contractor license

Dixon Backflow Testing LLC

Dixon Backflow Testing LLC of Seattle holds Washington license DIXONBT751RQ (PC-30 Backflow Specialty). The L&I file dated Nov 1, 2026 lists it as active.1 It expires Dec 12, 2027.

Active

Dixon Backflow Testing LLC, Seattle

License
DIXONBT751RQ
Class
PC-30 Backflow Specialty
Expires
Dec 12, 2027
Bond
$6,000
Liability insurance
$1,000,000 to Oct 10, 2027

L&I file dated Nov 1, 2026

From the L&I file dated Nov 1, 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 Nov 1, 2026. Confirm with the board: L&I contractor lookup

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

Bond
$6,000Western Surety Co, from Oct 22, 2025, continuous
Liability insurance
$1,000,000American Fire & Casualty Co, from Oct 10, 2025, to Oct 10, 2027
Workers' comp
Not in the L&I fileCheck with the board

What work does this license cover?

License level: Plumbing Contractor. Issued Dec 12, 2025.

Which other Seattle businesses hold PC-30 Backflow Specialty?

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, Nov 1, 2026)
  2. Department of Labor and Industries (L&I)