California Contractor Insurance
Asena Capital Insurance Services — California-licensed insurance brokerage serving contractors statewide. Phone: (858) 925-9555. Email: info@asenainsurance.com.
Fontana is home to 100 licensed electrical contractors (C-10, CSLB September 2026), about 13% of the 799 contractor licenses based here.
Nearby in San Bernardino County: Rancho Cucamonga (144), Ontario (133), Chino (96), Upland (95).
21% of Fontana's C-10 licensees hold more than one classification — most often B General Building Contractor (15%), C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor (3%). Extra classifications can change how carriers rate your general liability and workers' comp, so list every license class when you quote.
Business structure: 43% sole owners, 44% corporations, 11% LLCs; median time licensed 10.4 years.
For electricians, underwriters focus first on: shock and electrocution injuries to employees; and falls from ladders and lifts. See the full coverage guide for electrical contractors for limits, endorsements and workers' comp rules.
Asena Capital Insurance Services compares multiple markets for Fontana 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.
100 active C-10 licenses have a business address in Fontana (CSLB, September 2026); 49% carry workers' comp and 50% are filed exempt.
If you have employees, yes — California Labor Code 3700 requires it. With no employees you can currently file an exemption, but beginning January 1, 2028 (SB 1455), CSLB will require workers' comp for all active licenses; only joint-venture licenses remain exempt.