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California contractor license
Metasilicon Construction Inc
Metasilicon Construction Inc of San Francisco holds California license 1127364 (B General Building, C10 Electrical). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Oct 31, 2028.
Active
Metasilicon Construction Inc, San Francisco
- License
- 1127364
- Class
- B General Building; C10 Electrical
- 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
- $25,000Western Surety Company, from Sep 17, 2025, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- Exemptfrom Sep 3, 2026
Who is on this license?
- Responsible managing officer, CEO and president
- Sunhom S. PaakSince Oct 3, 2024
What work does this license cover?
Issued Oct 3, 2024.
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 San Francisco businesses hold B General Building?
- Hongtu Construction IncLicensed since 2024
- WW Electric And Construction IncLicensed since 2024
- Electrical Bro IncLicensed since 2025
- Rick Electric & Construction IncLicensed since 2025
- Golden A Plus Construction IncLicensed since 2026
Electrical Contractors in San FranciscoCalifornia electrical contractorsGeneral Contractors in San FranciscoCalifornia 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 30, 2026)
- Contractors State License Board (CSLB)