Home / San Diego County
One office, the whole county
Plumbing contractor insurance in San Diego County.
The office is in Chula Vista, at 779 3rd Avenue. It is not a desk in every city, and it is not a plumbing company. A plumbing contractor in the city of San Diego, or elsewhere in the county, calls 619-420-8600. The quote does not require a drive down.
South Bay plumbers who want the street address start on the Chula Vista page. License 0F23572.
What county plumbers actually call about.
- A commercial general contractor asked for additional insured and primary wording before the plumber can start. Send that wording as written.
- A service plumber's van is still on a personal policy, and the jetter trailer was never named. List both.
- Someone read that a solo plumber has needed workers' compensation for years. For a C-36 with no employees, that is wrong until January 1, 2028. The CSLB rule is here.
- A page offered a monthly price. That number is not a quote for payroll in this county. Send payroll and the truck count instead.
There is no second office.
Mainline does not list a San Diego storefront. The address is 779 3rd Avenue, Chula Vista, CA 91910. Plumbers north and east of the South Bay use that office by phone. Weekdays, 9:00 a.m. to 5:00 p.m. Pacific. If you want to come in, the directions are on the Chula Vista page.
The agency provides at least four formal insurance quotes when it shops the risk. It does not promise a named insurance company before the facts are in.
Common questions
Do I have to drive to Chula Vista for a quote?
No. Call 619-420-8600. A certificate for a policy already on file is also a phone call or an email to certs@mainline-ins.com.
Do you publish a San Diego plumber price?
No. Payroll, subcontractors, claims, and the trucks change the number. A range on a national page is not your premium.
Are you Mainline Plumbing?
No. Mainline Insurance Services is the agency. A plumbing company that uses a similar name is a different business.