Low Voltage Systems Contractor Insurance in California (C-7)

What the C-7 license covers

The CSLB’s definition

“A communication and low voltage contractor installs, services and maintains all types of communication and low voltage systems which are energy limited and do not exceed 91 volts.”

Low-voltage work is lower-risk on the comp side, but the liability is different from other trades. When an alarm, camera or access system fails and a loss follows, the claim can allege your installation caused it, which is closer to a professional error than a slip-and-fall. Ask whether your policy includes errors and omissions coverage for that.

The C-7 coverage stack

General Liability — plus errors and omissions if you design or monitor systems
Workers’ Compensation — usually 5195 for cabling; other systems confirmed by operations
Commercial Auto — service vans with ladders and cable stock
Inland Marine — testers, tools and equipment awaiting installation
CSLB license bond — the $25,000 bond every C-7 license needs
Excess & Umbrella — commercial and institutional contracts

C-7 requirements

What California requires of a C-7 licensee

Requirement	What applies to C-7 low-voltage contractors
Contractor’s license bond	A $25,000 bond is required to activate and keep the license. LLC licensees also need a $100,000 LLC employee/worker bond. How the bond works
Workers’ compensation	Required now if you have even one employee. With no employees you can file a CSLB exemption, but that option ends for every classification on January 1, 2028. Check your requirement
General liability	Required by the CSLB only for LLC licensees (at least $1 million). General contractors and owners require it anyway, usually with additional insured status.

Workers’ comp class code and 2026 rate

Class code	Description	Advisory rate per $100 payroll
5195	Communications cabling within buildings	$2.73

Source: WCIRB California, approved September 1, 2026 advisory pure premium rates and classification descriptions. These are benchmark loss costs, not quotes: each carrier files its own rates, and your experience mod and credits adjust the final premium.

Communications and data cabling inside buildings is code 5195. Alarm, security, AV and other low-voltage work can be assigned different codes depending on the operations, so we confirm your classification against what your crews actually install.

Code 5195

$2.73 per $100 of payroll for cabling in 2026

System failure

liability can look like a professional error

WC by 2028

every C-7 needs a policy, employees or not

Common questions

C-7 coverage, answered

What is the workers’ comp class code for low-voltage contractors in California?

Communications cabling within buildings is code 5195, with a WCIRB 2026 advisory rate of $2.73 per $100 of payroll. Alarm, security and other low-voltage work can be assigned other codes depending on the operations.

Do low-voltage contractors need errors and omissions insurance?

If you design, program or monitor systems, it’s worth having. When a security or alarm system fails and a loss follows, the claim may allege a professional error that general liability alone may not cover.

Is general liability required for a C-7 license?

Only for LLC licensees, at least $1 million. General contractors and building owners will require it.

Do low-voltage contractors need workers’ comp with no employees?

A C-7 with no employees can file the CSLB exemption until January 1, 2028. After that every licensee needs a policy.

Low Voltage Systems Contractor Insurance in California

The CSLB’s definition

The C-7 coverage stack

What California requires of a C-7 licensee

Workers’ comp class code and 2026 rate

C-7 coverage, answered

Get a C-7 quote that fits the work