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Diablo Telecom & Construction Inc
Diablo Telecom & Construction Inc of Concord holds California license 1097926 (B General Building, C10 Electrical). The CSLB file dated Oct 31, 2026 lists it as active.1 It expires Oct 31, 2028.
Active
Diablo Telecom & Construction Inc, Concord
- License
- 1097926
- Class
- B General Building; C10 Electrical
- Expires
- Oct 31, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Aug 19, 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
- $25,000Merchants Bonding Company (Mutual), from Sep 1, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredBerkshire Hathaway Homestate Insurance Company, from Aug 19, 2026, to Aug 19, 2027
Who is on this license?
- Officer
- Jeffrey A. SartoriSince Oct 20, 2022
- Officer
- Ricardo BarojasSince Oct 20, 2022
- Responsible managing officer
- Justin S. BaloughSince Oct 20, 2022
- CEO and president
- Stephan L. DokkenSince Oct 20, 2022
What work does this license cover?
Issued Oct 20, 2022.
Which other Concord businesses hold B General Building?
- Mares & Dow Construction & Skylights IncLicensed since 1991
- G T Power Construction IncLicensed since 2021
- Green Empire Builder IncLicensed since 2022
- KSG Solar Services IncLicensed since 2023
- SRK Builders LLCLicensed since 2025
California electrical contractorsGeneral Contractors in ConcordCalifornia general contractors
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)