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California contractor license
Three Alarm Electrical Systems Inc
Three Alarm Electrical Systems Inc of Livermore holds California license 944907 (C7 Low Voltage Systems, C10 Electrical, C16 Fire Protection). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Mar 31, 2028.
Active
Three Alarm Electrical Systems Inc, Livermore
- License
- 944907
- Class
- C7 Low Voltage Systems; C10 Electrical; C16 Fire Protection
- Expires
- Mar 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Apr 22, 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
- InsuredEastguard Insurance Company, from Apr 22, 2026, to Apr 22, 2027
Who is on this license?
- Officer
- Todd F. BonnerSince Mar 26, 2010
- Responsible managing officer, CEO and president
- Thomas M. LemmonsSince Mar 26, 2010
What work does this license cover?
Issued Mar 26, 2010.
- C7 Low Voltage Systems
- C10 Electrical
- C16 Fire Protection
Which other Livermore businesses hold C7 Low Voltage Systems?
- Three Alarm Fire ProtectionLicensed since 2006
- Professional Telecommunications Services IncLicensed since 2007
- Bay Area Security Specialists IncLicensed since 2010
- Ag Security Services IncLicensed since 2013
- Elb US Inc.Licensed since 2014
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)