Updated: Mar 27, 2026
Location
Address
1018 SAN ANTONIO, Fullerton, CA, 92635
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Main plumbing
Main plumbing at 1018 SAN ANTONIO, Fullerton, CA 92635, held a Plumber license (#318762) with the California contractors license board with an expiration date of 06-30-1987. We last verified the license was expired on 03-25-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 336,931 California contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
Main plumbing Services
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Main plumbing Contact Information
Address: 1018 SAN ANTONIO, Fullerton, CA 92635
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Main plumbing License info
Inactive License
| License # | 318762 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed. If this is your business, please update your license status.
Check this license's status for Main plumbing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are Main plumbing, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $5,000 |
Main plumbing Employees
GM
Guenter Mainberger
Sole Owner
GM
Guenter Mainberger
Sole Owner