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California contractor license
Duhig Construction Inc
Duhig Construction Inc of Napa holds California license 850667 (A General Engineering, HAZ Hazardous Substance Removal Certification). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Mar 31, 2028.
Licensed 21 years, longer than 58% of 204 active Napa general contractors.
Active
Duhig Construction Inc, Napa
- License
- 850667
- Class
- A General Engineering; HAZ Hazardous Substance Removal Certification
- Expires
- Mar 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Apr 5, 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
- $25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredAmtrust Insurance Company, from Apr 5, 2026, to Apr 5, 2027
Who is on this license?
- Officer
- Harvest M. Scaduto-DuhigSince Mar 18, 2014
- Responsible managing officer, CEO and president
- John S. DuhigSince Dec 3, 2004
What work does this license cover?
Issued Dec 3, 2004. Reissued Mar 18, 2014.
- A General Engineering
- HAZ Hazardous Substance Removal Certification
Which other Napa businesses hold A General Engineering?
- Brady Mitchell Construction IncLicensed since 2000
- Duckworth ConstructionLicensed since 2002
- C G G S Backhoe Service IncLicensed since 2005
- B H M Construction LLCLicensed since 2007
- D E S BuildersLicensed since 2007
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)