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California contractor license
Cornely Company
Cornely Company of San Francisco holds California license 171203 (C4 Boiler, Hot Water Heating and Steam Fitting, C10 Electrical, C36 Plumbing). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Nov 30, 2028.
Licensed 69 years, longer than 99% of 326 active San Francisco electrical contractors.
Active
Cornely Company, San Francisco
- License
- 171203
- Class
- C4 Boiler, Hot Water Heating and Steam Fitting; C10 Electrical; C36 Plumbing
- Expires
- Nov 30, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Oct 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
- $25,000Western Surety Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from Oct 1, 2022, to Oct 1, 2027
Who is on this license?
- Officer
- Edward F. GreenwoodSince Oct 27, 1966
- Officer
- John W. KraftSince Mar 24, 1988
- Officer
- John J. GraySince Mar 27, 2002
- Officer
- William F. JudgeSince Nov 3, 2004
- Responsible managing officer, CEO and president
- Kevin J. GraySince Mar 27, 2002
What work does this license cover?
Issued Oct 28, 1957.
Which other San Francisco businesses hold C4 Boiler, Hot Water Heating and Steam Fitting?
- Reichel C R Engineering Co IncLicensed since 1957
- Abco Mechanical Contractors IncLicensed since 1962
- Sand Joseph C Co IncLicensed since 1972
- Demakas Plumbing & Heating IncLicensed since 1978
- FMP Mechanical LLCLicensed since 2026
Electrical Contractors in San FranciscoCalifornia electrical contractorsPlumbing Contractors in San FranciscoCalifornia plumbing 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)