Plumbing contractors in Concord by the numbers
Concord is home to 66 licensed plumbing contractors (C-36, CSLB September 2026), about 6% of the 1,163 contractor licenses based here.
Nearby in Contra Costa County: Antioch (52), Richmond (42), Brentwood (38), Walnut Creek (35).
47% of Concord's C-36 licensees hold more than one classification — most often B General Building Contractor (26%), C-20 Warm-Air Heating, Ventilating and Air-Conditioning Contractor (18%). Extra classifications can change how carriers rate your general liability and workers' comp, so list every license class when you quote.
Business structure: 47% sole owners, 38% corporations, 11% LLCs; median time licensed 18.1 years.
What carriers look at
For plumbers, underwriters focus first on: water damage from failed fittings, supply lines and water heaters; and mold claims that follow slow leaks. See the full coverage guide for plumbing contractors for limits, endorsements and workers' comp rules.
Get a quote
Asena Capital Insurance Services compares multiple markets for Concord 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
How many licensed plumbing contractors are in Concord?
66 active C-36 licenses have a business address in Concord (CSLB, September 2026); 53% carry workers' comp and 47% are filed exempt.
Does GL cover water damage from my plumbing work?
Property damage your completed work causes is typically a completed-operations question. Some plumbing policies limit water damage or mold, so we compare that wording line by line.