Updated: Jan 21, 2026
Location and Projects
Address
P O BOX 968, Union City, CA, 94587
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Qualified Plumbers Services Inc
Qualified Plumbers Services Inc, Union, Po Box 968, Union City, CA (Employee: Ovidio Antonio Valencia) holds a Plumbing, Sanitation System license according to the California license board.
Their BuildZoom score of 107 ranks in the top 6% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Qualified Plumbers Services Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Qualified Plumbers Services Inc Services
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Qualified Plumbers Services Inc Contact Information
Phone Number: (510) 471-2373
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Address: P O BOX 968, Union City, CA 94587
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Qualified Plumbers Services Inc Union City
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Qualified Plumbers Services Inc has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
2 projects
|
2025 |
|
3 projects
|
2024 |
Our building permit records indicate that Qualified Plumbers Services Inc has worked on at least
5.0 projects over the past 2 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Experience
|
5 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Qualified Plumbers Services Inc mostly works on
plumbing project
projects.
Pricing
|
2 projects
|
< $5k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Qualified Plumbers Services Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Replace approximately 40’ of existing water main service from the meter to the house isolation valve with 3/4” copper type
Valuation:
$3,279
Permit #:
BLD2025-00987
Status:
complete
Fee:
$149
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
$750
Permit #:
PLMB2024-0112
Status:
final
Fee:
$91
Permit Type:
Water heater repl...
Building Type:
N/A
Remove section of sidewalk concrete in order to install a backflow next to the building against the wall
Valuation:
N/A
Permit #:
202004738
Status:
issued
Fee:
N/A
Permit Type:
Encroachment - minor
Building Type:
N/A
Replace water heater conventional gas tank
Valuation:
N/A
Permit #:
BL-WH-2024-00121
Status:
complete
Fee:
$239
Permit Type:
N/A
Building Type:
N/A
Replace existing 2 inch backflow
Valuation:
N/A
Permit #:
PW21-00640
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove (e) double check backflow & replace it w pressureresisting backflow above ground w/steel cage;private proprty
Valuation:
$2,900
Permit #:
201906620
Status:
complete
Fee:
$326
Permit Type:
plumbing permit
Building Type:
N/A
Remove (e) double check backflow & replace it w pressureresisting backflow above ground w/steel cage;private proprty
Valuation:
$2,900
Permit #:
201906620
Status:
complete
Fee:
$326
Permit Type:
plumbing permit
Building Type:
N/A
Replace double check backflow with a reduced pressure afterthe meter with new concrete pad & new steel cage
Valuation:
N/A
Permit #:
201905544
Status:
complete
Fee:
$326
Permit Type:
plumbing permit
Building Type:
N/A
Replace irrigation backflow on the meter
Valuation:
$1,200
Permit #:
BLD2022-00201
Status:
complete
Fee:
$154
Permit Type:
Alteration commer...
Building Type:
N/A
Install dedicated 3/4 gas line to garage for gas dryer
Valuation:
$1,300
Permit #:
BLDG-2019-00608
Status:
final
Fee:
$191
Permit Type:
N/A
Building Type:
N/A
Install (n) backflow device
Valuation:
$5,600
Permit #:
202004729
Status:
issued
Fee:
N/A
Permit Type:
plumbing permit
Building Type:
N/A
Caza azteca restaurant: replace waste line from the restooms
Valuation:
$15,000
Permit #:
B-PL17-0377
Status:
final
Fee:
$364
Permit Type:
Cpl-plumbing
Building Type:
N/A
Cap off 1 3 abandoned vent pipe above rstrm & rooftop
Valuation:
N/A
Permit #:
PLMB2017-139
Status:
issued
Fee:
N/A
Permit Type:
Commercial_na
Building Type:
N/A
Replace and upgrade existing backflow device
Valuation:
$2,600
Permit #:
201800522
Status:
complete
Fee:
$326
Permit Type:
plumbing permit
Building Type:
N/A
Replace and upgrade existing backflow device
Valuation:
$2,600
Permit #:
201800522
Status:
complete
Fee:
$326
Permit Type:
plumbing permit
Building Type:
N/A
Upgrade (e) 2 backflow
Valuation:
N/A
Permit #:
PW19-00343
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Repair/replace building sewer on property only. sl & x required beyond pl. overflow device may be needed. call pwa inspection prior to start: 510-238-3651. 4th floor
Valuation:
N/A
Permit #:
SL1303201
Status:
issued
Fee:
$407
Permit Type:
N/A
Building Type:
N/A
Permit value$2.5kmessage contractor replace 2 irrigation backflow preventer same size and location
Valuation:
N/A
Permit #:
P170245
Status:
FINALED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Repair/replace building sewer on property only. sl & x required beyond pl. overflow device may be needed. call pwa inspection prior to start: 510-238-3651. 4th floor
Valuation:
N/A
Permit #:
SL1303201
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace sewer lateral - open trench camera avilable for inspection install property line clean out. for 10 no work in row
Valuation:
N/A
Permit #:
BLD2019-55125
Status:
final
Fee:
$63
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Qualified Plumbers Services Inc License info
Verified License
| License # | 884105 |
| Status | Active |
| State | California |
| Type | Plumbing, Sanitation System |
| Business Type | Corporation |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Qualified Plumbers Services Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | Western Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Security National Insurance Company |
70
Permits
- Building permit records show that Qualified Plumbers Services Inc has worked on 70 permitted projects.
Qualified Plumbers Services Inc Employees
OV
Ovidio Antonio Valencia
Rmo/Ceo/Pres