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California contractor license
Duong's Landscaping
Duong's Landscaping of Elk Grove holds California license 1150556 (C27 Landscaping). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Feb 29, 2028.
Active
Duong's Landscaping, Elk Grove
- Board action on file.
- License
- 1150556
- Class
- C27 Landscaping
- Expires
- Feb 29, 2028
- Bond
- $25,000
- Workers' comp
- Exempt
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?
- Dec 27, 2026 — Pending suspension
From the CSLB file dated Nov 1, 2026. Confirm with the board. CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Nationwide Mutual Insurance Company, from Dec 20, 2025, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- Exemptfrom Dec 20, 2025
Who is on this license?
- CEO and president
- Denny DuongSince Feb 17, 2026
What work does this license cover?
Issued Feb 17, 2026.
- C27 Landscaping
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 Elk Grove businesses hold C27 Landscaping?
- Corona Landscaping IncLicensed since 1998
- N T Landscaping Services LLCLicensed since 2007
- QD LandscapingLicensed since 2024
- Gentil Landscaping Services LLCLicensed since 2025
- Xeric LandscapesLicensed since 2026
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)