Updated: May 17, 2026
Location and Projects
Address
P O BOX 583, Concord, CA, 94522
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CO CO PLUMBING SYSTEMS
CO CO PLUMBING SYSTEMS at P O BOX 583, Concord, CA 94522, held a Plumber license (#954996) with the California contractors license board with an expiration date of 11-30-2020. We last verified the license was expired on 05-16-2026.
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.
CO CO PLUMBING SYSTEMS Services
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CO CO PLUMBING SYSTEMS Contact Information
Phone Number: (925) 852-4873
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Address: P O BOX 583, Concord, CA 94522
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Building Permits by CO CO PLUMBING SYSTEMS
This is a sample of this contractor's permits. Click here to access their complete permit history.
(rp) plumbing - 1 & 2 unit residential (building)
2019-11-14
Replace existing water heater with same for single family dwelling
Valuation:
N/A
Permit #:
RP1901901
Status:
final
Fee:
$207
Permit Type:
N/A
Building Type:
N/A
Replace existing 50 gallon water heater natural gas in garage
Valuation:
$1,700
Permit #:
B2019-1905
Status:
final
Fee:
$40
Permit Type:
Res-oss
Building Type:
N/A
Replace water heater located in garage
Valuation:
$1,615
Permit #:
20191742
Status:
final
Fee:
$26
Permit Type:
plumbing
Building Type:
N/A
Replace existing 75 gallon water heater
Valuation:
N/A
Permit #:
B19-0768
Status:
final
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
Replace existing 40 gallon water heater
Valuation:
$1,750
Permit #:
201905462
Status:
issued
Fee:
$237
Permit Type:
Water heater permit
Building Type:
N/A
Change out water heater tank like for like
Valuation:
$2,800
Permit #:
P2019-0868
Status:
issued
Fee:
$121
Permit Type:
Water heater
Building Type:
N/A
Replace boiler and water heater
Valuation:
N/A
Permit #:
BIPL19-003244
Status:
final
Fee:
$397
Permit Type:
N/A
Building Type:
N/A
Install gas line to fire bar for water feature
Valuation:
N/A
Permit #:
B16-0217
Status:
final
Fee:
N/A
Permit Type:
plumbing
Building Type:
N/A
Replace water heater same location
Valuation:
$1,275
Permit #:
B1902-0039
Status:
issued
Fee:
$145
Permit Type:
Water heater
Building Type:
N/A
Install 3/4-inch dedicated gas line for 15kbtu cooktop & install earthquake shut off valve at main
Valuation:
$1,600
Permit #:
B161854
Status:
final
Fee:
$133
Permit Type:
N/A
Building Type:
N/A
Replace existing water line supply (within the property only)
Valuation:
$4,600
Permit #:
B160393
Status:
final
Fee:
$139
Permit Type:
N/A
Building Type:
N/A
Replace water line from meter to house 2 pipe @ 2ft deep
Valuation:
N/A
Permit #:
BIPL16-001113
Status:
final
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
Reroute of existing water system within the house
Valuation:
N/A
Permit #:
BIPL16-003891
Status:
final
Fee:
$156
Permit Type:
N/A
Building Type:
N/A
Misc res
Replace water service
Valuation:
$3,900
Permit #:
B1410-0108
Status:
final
Fee:
$111
Permit Type:
Water heater
Building Type:
N/A
Misc res
Replace water heater
Valuation:
$1,000
Permit #:
B1304-0109
Status:
final
Fee:
$79
Permit Type:
Water heater
Building Type:
N/A
Replace water service
Valuation:
$1,000
Permit #:
B1303-0123
Status:
issued
Fee:
$79
Permit Type:
plumbing
Building Type:
N/A
Gas line supply from meter to cooktop
Valuation:
N/A
Permit #:
M161269
Status:
final
Fee:
$365
Permit Type:
N/A
Building Type:
N/A
Replace 50 gallon gas water heater
Valuation:
$1,770
Permit #:
B191820
Status:
final
Fee:
$172
Permit Type:
N/A
Building Type:
N/A
Gas test new fixtures in bathroom washer machine box
Valuation:
$0
Permit #:
PP20130417020
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 100 gal water heater-- in community laundry room
Valuation:
$1,500
Permit #:
BP12002758
Status:
final
Fee:
$265
Permit Type:
N/A
Building Type:
N/A
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CO CO PLUMBING SYSTEMS License info
Inactive License
| License # | 954996 |
| 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 CO CO PLUMBING SYSTEMS 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 CO CO PLUMBING SYSTEMS, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Accredited Surety & Casualty Company Inc |
| Bond Value | $15,000 |
38
Permits
- Building permit records show that CO CO PLUMBING SYSTEMS has worked on 38 permitted projects.
CO CO PLUMBING SYSTEMS Employees
MV
Mark Anthony Vaquera
Owner