California Contractor Insurance
Asena Capital Insurance Services — California-licensed insurance brokerage serving contractors statewide. Phone: (858) 925-9555. Email: info@asenainsurance.com.
San Jose is home to 375 licensed plumbing contractors (C-36, CSLB September 2026) — #4 in California, about 8% of the 4,970 contractor licenses based here.
Nearby in Santa Clara County: Santa Clara (47), Gilroy (46), Sunnyvale (33), Campbell (27).
36% of San Jose's C-36 licensees hold more than one classification — most often B General Building Contractor (25%), C-10 Electrical Contractor (15%). Extra classifications can change how carriers rate your general liability and workers' comp, so list every license class when you quote.
Business structure: 44% sole owners, 50% corporations, 6% LLCs; median time licensed 10.1 years.
For plumbers, underwriters focus first on: service vans with tools, parts and drain equipment; and water damage from failed fittings, supply lines and water heaters. See the full coverage guide for plumbing contractors for limits, endorsements and workers' comp rules.
Asena Capital Insurance Services compares multiple markets for San Jose 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.
375 active C-36 licenses have a business address in San Jose (CSLB, September 2026); 52% carry workers' comp and 45% are filed exempt.
Yes if you have employees. With no employees you can currently file an exemption; beginning January 1, 2028, CSLB will require workers' comp for all active licenses under SB 1455, except joint ventures.