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California contractor license
Grigolla & Sons Construction Co Inc
Grigolla & Sons Construction Co Inc of San Dimas holds California license 514132 (A General Engineering). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Jul 31, 2027.
Licensed 39 years, longer than 96% of 85 active San Dimas general contractors.
Active
Grigolla & Sons Construction Co Inc, San Dimas
- License
- 514132
- Class
- A General Engineering
- Expires
- Jul 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Jan 1, 2027
CSLB file dated Oct 31, 2026
From the CSLB 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 CSLB file dated Oct 31, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredIndemnity Insurance Company Of North America, from Jan 1, 2026, to Jan 1, 2027
Who is on this license?
- Officer
- Raymond L. GrigollaSince Jul 13, 1987
- Responsible managing officer
- David L. GrigollaSince Jul 13, 1987
- CEO and president
- John L. GrigollaSince Jul 13, 1987
What work does this license cover?
Issued Jul 13, 1987.
Which other San Dimas businesses hold A General Engineering?
- Sea West Enterprises IncLicensed since 1986
- Fidelity Construction Plumbing IncLicensed since 1990
- Vacom TechnologiesLicensed since 1992
- Diversfied Construction & Engineering Group IncLicensed since 1999
- Socal Paving CompanyLicensed since 2025
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- 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.
- 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
- Don't sign or pay a deposit until the CSLB shows the license active again.
- 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.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Oct 31, 2026)
- Contractors State License Board (CSLB)