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California contractor license
Winfield Construction Company
Winfield Construction Company of Emeryville holds California license 481163 (B General Building, C33 Painting and Decorating). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Oct 31, 2027.
Doing business as Alpha-Winfield Contractors Inc.
Licensed 41 years, longer than 89% of 37 active Emeryville general contractors.
Active
Winfield Construction Company, Emeryville
- License
- 481163
- Class
- B General Building; C33 Painting and Decorating
- Expires
- Oct 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Jan 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
- $25,000Atlantic Specialty Insurance Company, from May 22, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from Jan 1, 2013, to Jan 1, 2027
Who is on this license?
- Officer
- Gregory A. NicholsSince Oct 17, 1985
- Responsible managing officer, CEO and president
- Kenneth J. WinfieldSince Oct 17, 1985
What work does this license cover?
Issued Oct 17, 1985.
- B General Building
- C33 Painting and Decorating
Which other Emeryville businesses hold B General Building?
- Baywood Building & Design IncLicensed since 1978
- Jetton Construction IncLicensed since 1981
- 20/20 BuildersLicensed since 1986
- Gotham Bay Construction CorporationLicensed since 1993
- Tsui Design And ResearchLicensed since 1995
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)