Updated: Apr 16, 2026
Location and Projects
Address
P O BOX 12422 8861 VILLA LA JOLLA DR, La Jolla, CA, 92037
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Blue Diamond Plumbing and Mechanical Inc
Blue Diamond Plumbing and Mechanical Inc at P O BOX 12422 8861 VILLA LA JOLLA DR, La Jolla, CA 92037, held a HVAC/Mechanical Contractor license (#871969) with the California contractors license board with an expiration date of 02-28-2026. We last verified the license was expired on 04-15-2026.
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.
Blue Diamond Plumbing and Mechanical Inc Services
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Blue Diamond Plumbing and Mechanical Inc Contact Information
Phone Number: (619) 400-7695
Address: P O BOX 12422 8861 VILLA LA JOLLA DR, La Jolla, CA 92037
Building Permits by Blue Diamond Plumbing and Mechanical Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
No-plan - nonresidential/multifamily - plumbing:7441/la jolla
Valuation:
N/A
Permit #:
PMT-3324855
Status:
issued
Fee:
$202
Permit Type:
N/A
Building Type:
N/A
No-plan - nonresidential/multifamily - mechanical
2019-01-22
Sdg&e red tag gas repair/partial repipe
Valuation:
N/A
Permit #:
PMT-3010960
Status:
issued
Fee:
$261
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2015-05-17
Cross street: osage dr description of work: install regulator (otay water district project) project #1002765 -- all fees will be charged to this project number
Valuation:
N/A
Permit #:
PDS2012-1011-20120147
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential alteration or addition - plan check-permit
2012-05-15
Cross street: osage dr description of work: install regulator (otay water district project) project #1002765 -- all fees will be charged to this project number
Valuation:
N/A
Permit #:
PDS2012-1011-20120147
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No-plan - nonresidential/multifamily - mechanical
2019-02-10
Sdg&e red tag gas for laundryroom
Valuation:
N/A
Permit #:
PMT-3012726
Status:
issued
Fee:
$261
Permit Type:
N/A
Building Type:
N/A
Partial gas repipe. gas system leak repair in laundry room (for condo's)
Valuation:
N/A
Permit #:
1825160
Status:
complete
Fee:
$249
Permit Type:
N/A
Building Type:
N/A
Water heater straps and needs to be piped
Valuation:
N/A
Permit #:
1718979
Status:
complete
Fee:
$169
Permit Type:
N/A
Building Type:
N/A
Gas repair/sdg & e shut off
Valuation:
N/A
Permit #:
2067669
Status:
complete
Fee:
$254
Permit Type:
N/A
Building Type:
N/A
Gas leak repair unit #6059 (condo) actual address
Valuation:
N/A
Permit #:
1989767
Status:
complete
Fee:
$254
Permit Type:
N/A
Building Type:
N/A
Gas leak repair (sdg&e lock out) attached cottages 7421 & 7425
Valuation:
N/A
Permit #:
1698866
Status:
complete
Fee:
$181
Permit Type:
N/A
Building Type:
N/A
Water heater replacement - already installed by unlicensed contractor. tenant complaint
Valuation:
N/A
Permit #:
1455339
Status:
complete
Fee:
$169
Permit Type:
N/A
Building Type:
N/A
Repair gas line sdge lockout
Valuation:
N/A
Permit #:
1828218
Status:
complete
Fee:
$249
Permit Type:
N/A
Building Type:
N/A
Gas repipe - sdg & e red tag
Valuation:
N/A
Permit #:
1413533
Status:
complete
Fee:
$355
Permit Type:
Add/alt 3+ no chg du
Building Type:
N/A
Gas repipe - sdg & e red tag
Valuation:
N/A
Permit #:
1413531
Status:
complete
Fee:
$283
Permit Type:
Add/alt 3+ no chg du
Building Type:
N/A
Partial repipe gas line from meter to dewelling
Valuation:
N/A
Permit #:
1199539
Status:
complete
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
Gas leak repair sdg&e shut off
Valuation:
N/A
Permit #:
1309173
Status:
complete
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
Sdge red tag gas lockout
Valuation:
N/A
Permit #:
1670082
Status:
complete
Fee:
$181
Permit Type:
N/A
Building Type:
N/A
Partial gas repipe (red tagged sdg&e)
Valuation:
N/A
Permit #:
1050163
Status:
complete
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
Commercial repipe gasline
Valuation:
N/A
Permit #:
979169
Status:
complete
Fee:
$177
Permit Type:
N/A
Building Type:
N/A
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Blue Diamond Plumbing and Mechanical Inc License info
Inactive License
| License # | 871969 |
| Status | Inactive |
| State | California |
| Type | Plumbing |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Blue Diamond Plumbing and Mechanical Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
17
Permits
- Building permit records show that Blue Diamond Plumbing and Mechanical Inc has worked on 17 permitted projects.
Blue Diamond Plumbing and Mechanical Inc Employees
WW
William David Willets
Rmo/Ceo/Pres