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California contractor license
Kwan Wo Ironworks Inc
Kwan Wo Ironworks Inc of Hayward holds California license 643621 (B General Building, C51 Structural Steel). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Apr 30, 2028.
Licensed 34 years, longer than 90% of 287 active Hayward general contractors.
Active
Kwan Wo Ironworks Inc, Hayward
- License
- 643621
- Class
- B General Building; C51 Structural Steel
- Expires
- Apr 30, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Apr 1, 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
- $25,000Suretec Insurance Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from Apr 1, 2025, to Apr 1, 2027
Who is on this license?
- CEO and president
- Kelvin K. ShumSince Apr 22, 2022
- Responsible managing employee
- Eric K. MaoSince Apr 29, 2022
What work does this license cover?
Issued Apr 29, 1992.
- B General Building
- C51 Structural Steel
Which other Hayward businesses hold B General Building?
- Loza Construction IncLicensed since 1991
- Spectrum Community Services IncLicensed since 1991
- Anning - Johnson CompanyLicensed since 1992
- Landavazo Bros IncLicensed since 1992
- Authentic Restoration And Waterproofing IncLicensed since 1993
General Contractors in HaywardCalifornia 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, Nov 1, 2026)
- Contractors State License Board (CSLB)