California Contractor Insurance

Sheet Metal Contractor Insurance in California

Asena Capital Insurance Services — California-licensed insurance brokerage serving contractors statewide. Phone: (858) 925-9555. Email: info@asenainsurance.com.

Sheet Metal contractor insurance in California

C-43 sheet metal contractors fabricate and install ductwork, flashing, gutters and architectural metal. Shop fabrication and field installation are underwritten as two different exposures.

What the C-43 license covers

CSLB's definition: “A sheet metal contractor selects, cuts, shapes, fabricates and installs sheet metal such as cornices, flashings, gutters, leaders, pans, kitchen equipment, duct work (including insulation, patented chimneys, metal flues, metal roofing systems and any other installations requiring sheet metal).” (California Code of Regulations / Business and Professions Code, via cslb.ca.gov).

C-43 licenses in California — CSLB data

CSLB's public license file (September 2026) shows 1,226 current C-43 licenses statewide. 74% have a workers' comp policy on file and 19% are filed exempt. 28% are sole owners, 66% corporations and 5% LLCs; 40 were issued in the last 12 months.

Right now 26 C-43 licenses are suspended for workers' comp and 26 for bond problems — a suspended license cannot legally contract.

Top 10 California cities by active C-43 licenses — CSLB public license file, September 2026.
LicensesWith WC policyExemptNew (12 mo)
Sacramento3275%16%0
Fresno2886%7%2
Santa Rosa2692%0%1
Los Angeles2650%35%2
San Jose2378%22%1
San Francisco2374%17%0
Riverside2162%24%2
Bakersfield1989%5%0
El Cajon1872%22%1
San Diego1782%0%0

Workers' comp rules

Any California contractor with employees must carry workers' comp (Labor Code 3700). A license with no employees can currently file an exemption with CSLB; beginning January 1, 2028 (SB 1455), CSLB will require workers' comp for all active licenses, with joint-venture licenses the only exception.

The carrier assigns the WCIRB class based on shop fabrication vs. field installation.

Risks carriers price for sheet metal contractors

  • Cuts and hand injuries from sheet metal
  • Falls installing gutters, flashing and rooftop ducts
  • Leaks from flashing and gutter work
  • Shop equipment and fabrication injuries
  • Fire from soldering and welding
  • Trucks carrying long materials

General liability

Carriers ask about your shop vs. field split, rooftop work, and whether you do HVAC duct installation, architectural metal or roofing-related flashing.

Contracts commonly require $1 million per occurrence / $2 million aggregate, additional insured status for the GC or owner, primary and non-contributory wording and a waiver of subrogation. We request additional insured endorsements for you when a contract calls for them.

Commercial auto

Sheet metal contractors often run trucks with racks for long material; schedule every work vehicle.

California's private passenger minimums are 30/60/15 (since January 1, 2025); contracts usually require $1 million combined single limit.

License bond and LLC rules

Every active California contractor license needs a $25,000 contractor license bond on file with CSLB (raised from $15,000 on January 1, 2023). For owners with good credit, the bond commonly costs about $140–$250 a year; price depends mainly on credit.

LLC licenses also need a $100,000 employee/worker bond and liability insurance of at least $1 million (plus $100,000 per member over five, up to $5 million).

Get a quote

Asena Capital Insurance Services compares multiple markets for sheet metal contractors and requests additional insured endorsements for you when a contract calls for them. Call (858) 925-9555 or request a quote — only your name, phone and email are required. CA License #6008596.

Frequently asked questions

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