Updated: Jul 14, 2026
Location and Projects
Address
P O BOX 2721, San Marcos, CA, 92079
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G B 3 Plumber
G B 3 INC, San, Po Box 2721, San Marcos, CA (Employees: Eugene Anthony Grieshaber Jr and Gregory Anthony Grieshaber) holds a Plumbing license and 1 other license according to the California license board.
Their BuildZoom score of 93 ranks in the top 27% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring G B 3 INC, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
G B 3 INC Services
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G B 3 INC Contact Information
Phone Number: (760) 840-7890
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Address: P O BOX 2721, San Marcos, CA 92079
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This is a sample of this contractor's permits. Click here to access their complete permit history.
No-plan - residential - combination mech/elec/plum
2021-08-23
No-plan - residential - combination mech/elec/plum:6122/la pintura
Valuation:
N/A
Permit #:
PMT-3112546
Status:
complete
Fee:
$577
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2015-08-24
Cross street: discovery street description of work: residential pool demolition permit -- note: _ it may not be possible to rebuild. _ the fact that there was an existing structure on your lot does not guarantee that you will be able to replace it if it is demolished. existence of a structure does not grandfather its use if it is removed. please see the zoning counter at the kearny me... see more
Valuation:
N/A
Permit #:
PDS2015-RESALT-007783
Status:
complete
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
Plumbing - adding floor sink - fruitripe ripening & cold storage services
Valuation:
$8,000
Permit #:
17-3931
Status:
final
Fee:
N/A
Permit Type:
Comb
Building Type:
N/A
Gasline riser after meter and regulator leaking
Valuation:
N/A
Permit #:
PMT-3051050
Status:
complete
Fee:
$306
Permit Type:
N/A
Building Type:
N/A
Replace water heater
Valuation:
$1,200
Permit #:
BLDG20-2653
Status:
final
Fee:
$65
Permit Type:
> 3 000 sq ft
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
755200
Status:
complete
Fee:
$441
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
755199
Status:
complete
Fee:
$441
Permit Type:
N/A
Building Type:
N/A
Reroute gas service house
Valuation:
N/A
Permit #:
758902
Status:
complete
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
G B 3 INC License info
Verified License
| License # | 553409 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for G B 3 INC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 553409 |
| Status | Inactive |
| City | Oceanside |
| Type | Contractor |
| Business Type | Corporation |
- According to the City of Oceanside, CA, 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 G B 3 INC at the City of Oceanside, CA.
This is a sample of licensing data; click here to access a complete history.
93
BuildZoom Score
Bonded
| Bonded Agent | Business Alliance Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
6
Permits
- Building permit records show that G B 3 INC has worked on 6 permitted projects.
G B 3 INC Employees
EJ
Eugene Anthony Grieshaber Jr
Rmo / Ceo / Pres
GG
Gregory Anthony Grieshaber
Officer