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California contractor license

Silletti William & Associates

Silletti William & Associates of Granada Hills holds California license 518820 (A General Engineering, B General Building, C16 Fire Protection, C36 Plumbing, C53 Swimming Pool, HAZ Hazardous Substance Removal Certification). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Oct 31, 2028.

Licensed 39 years, longer than 95% of 44 active Granada Hills plumbing contractors.

Active

Silletti William & Associates, Granada Hills

License
518820
Class
A General Engineering; B General Building; C16 Fire Protection; C36 Plumbing; C53 Swimming Pool; HAZ Hazardous Substance Removal Certification
Expires
Oct 31, 2028
Bond
$25,000
Workers' comp
Exempt

CSLB file dated Oct 30, 2026

From the CSLB file dated Oct 30, 2026. Not a consumer report; check the board before you hire.

Has the board taken action on this license?

None in the CSLB file dated Oct 30, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000American Contractors Indemnity Company, from Sep 25, 2024, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
Exemptfrom Sep 28, 2026

Who is on this license?

Officer
Nicholas A. SillettiSince Jul 11, 1990
Responsible managing officer, CEO and president
William SillettiSince Oct 6, 1987

What work does this license cover?

Issued Oct 6, 1987. Inactive Nov 1, 2013 to Oct 2, 2020.

The workers' comp exemption means the holder told the CSLB it has no employees. If a crew works on your job, ask for a workers' comp certificate.

Which other Granada Hills businesses hold A General Engineering?

California plumbing contractorsGeneral Contractors in Granada HillsCalifornia general 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. California 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. An exemption on file means the contractor told the CSLB it has no employees.
  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 CSLB 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 CSLB, then check again.
  3. If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
  4. Check another contractor. California license lookup

Sources

  1. CSLB License Master (cslb.ca.gov, Oct 30, 2026)
  2. Contractors State License Board (CSLB)