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California contractor license
Z-4 Builders Inc
Z-4 Builders Inc of San Diego holds California license 1096476 (B General Building, C21 Building Moving/Demolition). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Sep 30, 2028.
Active
Z-4 Builders Inc, San Diego
- License
- 1096476
- Class
- B General Building; C21 Building Moving/Demolition
- Expires
- Sep 30, 2028
- Bond
- $25,000
- Workers' comp
- Insured to May 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
- $25,000Platte River Insurance Company, from Jun 29, 2025, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from May 1, 2024, to May 1, 2027
Who is on this license?
- Responsible managing officer, CEO and president
- Sergio G. AcunaSince Sep 12, 2022
What work does this license cover?
Issued Sep 12, 2022.
- B General Building
- C21 Building Moving/Demolition
Which other San Diego businesses hold B General Building?
- Total RenovationLicensed since 2022
- Concept To Creation Development IncLicensed since 2022
- Sunside Homes IncLicensed since 2022
- R G ConstructionLicensed since 2022
- Sabatini Construction IncLicensed since 2022
General Contractors in San DiegoCalifornia general contractors
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)