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California contractor license
Sergios Tree Service
Sergios Tree Service of Rancho Cucamonga holds California license 1056703 (D49 Tree Service). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires Sep 30, 2027.
Doing business as Aldanas Enterprises Inc.
Active
- Workers' comp ends Dec 17, 2026 (49 days)
Sergios Tree Service, Rancho Cucamonga
- License
- 1056703
- Class
- D49 Tree Service
- Expires
- Sep 30, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Dec 17, 2026
CSLB file dated Oct 29, 2026
From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Atlantic Specialty Insurance Company, from Sep 1, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredState Compensation Insurance Fund, from Dec 17, 2023, to Dec 17, 2026
Who is on this license?
- Responsible managing officer, CEO and president
- Sergio E. AldanaSince Aug 6, 2019
What work does this license cover?
Issued Aug 6, 2019. Reissued Sep 2, 2021.
- D49 Tree Service
Which other Rancho Cucamonga businesses hold D49 Tree Service?
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 29, 2026)
- Contractors State License Board (CSLB)