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State files updated Oct 28, 2026
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Washington contractor license

Grassi Services LLC

Grassi Services LLC of Walla Walla holds Washington license GRASSSL756QD (EC-6A Hvac/Rfrg). The L&I file dated Oct 28, 2026 lists it as active.1 It expires Nov 26, 2027.

Active

Grassi Services LLC, Walla Walla

License
GRASSSL756QD
Class
EC-6A Hvac/Rfrg
Expires
Nov 26, 2027
Bond
$4,000

L&I file dated Oct 28, 2026

From the L&I file dated Oct 28, 2026. Not a consumer report; check the board before you hire.

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

Bond
$4,000Merchants National Bonding Inc, from Jul 7, 2025, continuous
Liability insurance
None on file
Workers' comp
Not in the L&I fileCheck with the board

What work does this license cover?

License level: Electrical Contractor. Issued Nov 26, 2025.

Which other Walla Walla businesses hold EC-6A Hvac/Rfrg?

Washington HVAC 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 28, 2026)
  2. Department of Labor and Industries (L&I)