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California contractor license
Masterseal Corporation
Masterseal Corporation of San Clemente holds California license 810097 (C27 Landscaping, D12 Synthetic Products). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Jul 31, 2028.
Active
- Workers' comp ends Nov 16, 2026 (16 days)
Masterseal Corporation, San Clemente
- License
- 810097
- Class
- C27 Landscaping; D12 Synthetic Products
- Expires
- Jul 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Nov 16, 2026
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
- $25,000Atlantic Specialty Insurance Company, from Nov 11, 2025, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from Nov 13, 2025, to Nov 16, 2026
Who is on this license?
- Officer
- Yvonne A. di BaggioSince Jul 1, 2002
- Responsible managing officer, CEO and president
- David A. di BaggioSince Jul 1, 2002
What work does this license cover?
Issued Jul 1, 2002.
- C27 Landscaping
- D12 Synthetic Products
Which other San Clemente businesses hold C27 Landscaping?
- Downunder Landscape IncLicensed since 1997
- Barkshire Laser Leveling IncLicensed since 1998
- Oceanswest LandscapeLicensed since 2005
- Oakbrook Landscape And Pool Construction IncLicensed since 2007
- Medlin Landscape Services IncLicensed since 2008
What should you check before hiring?
What to ask before you hire
- Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
- 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)