The certificate was rejected.
The job is waiting. Send the holder, the job, and the wording they wrote.
Chula Vista office · San Diego County plumbers
Plumber insurance in Chula Vista and San Diego County.
This is insurance for plumbing contractors, from the agency at 779 3rd Avenue, Chula Vista. Mainline Insurance Services is not a plumbing company. Call 619-420-8600. Same-day certs when the job needs them.
Independent agency, established in 2006. The office provides at least four formal insurance quotes. California license 0F23572. No price is shown on this page.
Three calls this office can take today.
A solo C-36 was told coverage is required.
With no employees, the CSLB exemption is still open. It ends January 1, 2028.
The truck is on a personal policy.
Name the truck, the trailer, and where they are garaged.
News that matters.
State Farm asked for the plumber before it paid the kitchen.
A hot water pipe was spraying under the floor. The court did not award the claim. It said a jury could find the release was sudden.
The polybutylene settlement closed in 2009.
Gray, blue, or black plastic from 1978 to 1995 is still in walls. One fitting repaired does not make the rest of the system new.
A carrier sued a plumber in its own name.
Fireman's Fund named Plumbing Solutions in Inglewood. The public docket does not describe the pipe. The page does not invent it.
A solo C-36 does not need workers' compensation in 2026.
The certificate rule for every classification starts January 1, 2028. A helper ends the exemption.
Employing workers with no coverage has a new minimum.
$10,000 for a sole owner. $20,000 for an LLC, corporation, or partnership. The tighter test is still a proposal.
Unlicensed-work fines start at $1,500.
That floor took effect July 1, 2026. A helper doing licensed plumbing work is the case that hits the shop.
Where the office works.
One office. Plumbing contractors in Chula Vista, National City, Bonita, Otay Mesa, San Ysidro, Imperial Beach, and Eastlake start on the Chula Vista page. Plumbers in the rest of San Diego County start on the San Diego County page. The phone number is the same.
Reviews already published for this agency.
These are the words on the plumbing site. The trades named are the trades that wrote them.
Certificates of Additionally Insured play a big role in how fast we get paid. My agent has been there for me for many years now and I'm happy he understands too.
I like that fact that my insurance agent takes care of me. Just to have that trust that my General liability policy is always taken care of relieves a lot of stress I don't need. Thanks!
The office.
Mainline Insurance Services, Inc.
779 3rd Avenue, Chula Vista, CA 91910
619-420-8600
Quotes: quotes@mainline-ins.com
Certificates: certs@mainline-ins.com
Monday-Friday, 9:00 a.m. to 5:00 p.m. Pacific
License 0F23572
Markets, depending on the risk.
The agency is independent. It shops markets rather than one carrier. The published list includes Travelers, Hartford, Mercury, Kemper Auto, Progressive, Bamboo, Stillwater, AmTrust, CNA, Employers, BHHC, Berkshire Hathaway Guard, Markel, Chubb, Liberty Mutual, Nationwide, Safeco, Philadelphia, Hanover, Foremost, State Fund, ICW, CompWest, Preferred Employers, Crum & Forster, and Great American. A plumbing contractor is not promised any one of them. The quote says which company will write the risk.
For homeowners, personal auto, and other commercial lines, use mainline-ins.com.
Common questions
Are you a plumbing company?
No. This is the insurance agency at 779 3rd Avenue. Search also shows a plumbing company that uses the word Mainline. That is a different business.
Do you show a monthly price?
No. A range printed on a national page was not built from your payroll, your trucks, or your claims. What the office needs instead is on its own page. Nothing here is a quote.
How fast is a certificate?
Same-day certs when the job needs them, for a policy already on file. This page does not promise a number of minutes. Call 619-420-8600 if the job is waiting.
Where is the office?
779 3rd Avenue, Chula Vista, CA 91910. Weekdays, 9:00 a.m. to 5:00 p.m. Pacific.
License rules on the other pages were checked October 7, 2026. The address matches the agency site.