Professional Telecommunications Services Inc
Professional Telecommunications Services Inc is an active, licensed contractor operating in Livermore, CA. Operating under a California contractor license established in 2007. They hold 4 license classifications including C-7 Low Voltage Systems Contractor, C-10 Electrical Contractor, and 2 others. They currently maintain an active contractor bond and workers' compensation insurance. No disciplinary actions have been recorded against this license.
License Information
- License Number
- 900567
- Status
- Active
- Classification(s)
- C-7: Low Voltage Systems Contractor, C-10: Electrical Contractor, C-28: Lock and Security Equipment Contractor, D16: Hardware, Locks and Safes
- Tenure
- Licensed since 2007 (18 years)
- Issue Date
- July 20, 2007
- Expiration Date
- November 30, 2026
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – AMERICAN CONTRACTORS INDEMNITY COMPANY
- Workers’ Compensation
- Workers' Compensation Insurance – SENTINEL INSURANCE COMPANY LTD
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 1799 PORTOLA AVE STE 5
- City
- Livermore, CA
- ZIP Code
- 94551
- Phone
- (925) 447-5100
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About These License Types
C-7: Low Voltage Systems Contractor
Installs, services, and maintains communication and low voltage systems not exceeding 91 volts, including telephone, sound, cable television, closed-circuit video, satellite dish antennas, instrumentation, temperature controls, and low voltage landscape lighting.
Not authorized: Does not include low voltage fire alarm systems or systems exceeding 91 volts (see C-10).
C-10: Electrical Contractor
Places, installs, erects, or connects electrical wires, fixtures, appliances, apparatus, raceways, conduits, solar photovoltaic cells, or any part thereof which generate, transmit, transform, or utilize electrical energy.
Not authorized: Electricians working under a C-10 must be certified per CA Labor Code.
C-28: Lock and Security Equipment Contractor
Evaluates, sets up, installs, maintains, and repairs all doors and door assemblies, gates, locks and locking devices, panic and fire-rated exit devices, gate and door closures, safes and vaults, master key systems, metal window guards, security doors, and card/electronic access control systems.
Not authorized: Fire alarm systems are specifically not included.
D16: Hardware, Locks and Safes
Installs, maintains, and repairs hardware, locks, and safes in construction settings.
Licensing Resources
Workers' comp requirements for California contractors
Deposit and payment rules for California contracts
Home improvement contract requirements
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License data sourced from the California Contractors State License Board. Last data update: April 05, 2026.