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California contractor license
Resource One Low Voltage Security Inc
Resource One Low Voltage Security Inc of Ontario holds California license 1037327 (C7 Low Voltage Systems). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Mar 31, 2028.
Active
Resource One Low Voltage Security Inc, Ontario
- License
- 1037327
- Class
- C7 Low Voltage Systems
- Expires
- Mar 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Mar 12, 2027
CSLB file dated Oct 30, 2026
From the CSLB file dated Oct 30, 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 30, 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
- InsuredSentinel Insurance Company LTD, from Mar 12, 2021, to Mar 12, 2027
Who is on this license?
- Officer
- Alexander CastroSince Mar 27, 2018
- Responsible managing officer, CEO and president
- Kevin D. WilliamsSince Mar 27, 2018
What work does this license cover?
Issued Mar 27, 2018.
- C7 Low Voltage Systems
Which other Ontario businesses hold C7 Low Voltage Systems?
- Top Rank Communications IncLicensed since 2009
- Custom Professional Electronics IncLicensed since 2010
- Low Volt IncLicensed since 2019
- Alexander Installation & Technology Services LLCLicensed since 2019
- Teleteks IncLicensed since 2019
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 30, 2026)
- Contractors State License Board (CSLB)