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California contractor license

Welch Joseph W & Sons

Welch Joseph W & Sons of San Bruno holds California license 975379 (B General Building). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Jul 31, 2028.

Licensed 14 years, longer than 54% of 59 active San Bruno general contractors.

Active

Welch Joseph W & Sons, San Bruno

License
975379
Class
B General Building
Expires
Jul 31, 2028
Bond
$25,000
Workers' comp
Insured to Apr 26, 2027

CSLB file dated Nov 1, 2026

From the CSLB 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 CSLB file dated Nov 1, 2026. Confirm with the board: CSLB license check

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

Bond
$25,000Nationwide Mutual Insurance Company, from Jan 1, 2023, continuous
Liability insurance
Not in the CSLB fileCheck with the board
Workers' comp
InsuredRepublic Indemnity Company Of America, from Apr 26, 2026, to Apr 26, 2027

Who is on this license?

Qualifying partner
Joseph W. WelchSince Jul 28, 2012
General partner
Barry F. WelchSince Jul 28, 2012
General partner
Gregory P. WelchSince Jul 28, 2012

What work does this license cover?

Issued Jul 28, 2012.

Which other San Bruno businesses hold B General Building?

California 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, Nov 1, 2026)
  2. Contractors State License Board (CSLB)