Updated: May 18, 2026
Location
Address
2218 NEW PORT CT, Byron, CA, 94514
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Harold John Plumber
Harold John at 2218 NEW PORT CT, Byron, CA 94514, held a Plumber license (#326769) with the California contractors license board with an expiration date of 09-30-2000. We last verified the license was expired on 05-17-2026.
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 bidding system to be easily matched to qualified, licensed professionals in your area.
Harold John Services
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Harold John Contact Information
Phone Number: (510) 516-1581
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Address: 2218 NEW PORT CT, Byron, CA 94514
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Harold John License info
Inactive License
| License # | 326769 |
| Status | Inactive |
| State | California |
| Type | Plumbing, Sanitation System |
| 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 Harold John 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 Harold John, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $5,000 |
Harold John Employees
HK
Harold John Kailihiwa
Sole Owner