Updated: Apr 02, 2026
Location and Projects
Address
3826 Anza Way, San Leandro, CA, 94578
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Costello's Plumbing
Plumbing,drain cleaning, gas lines, water lines ,water heaters
From BuildZoom: Costello's Plumbing, 3826 Anza Way, San Leandro, CA (Owned by: Gary Martin Costello Jr) holds a Plumbing 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 Costello's Plumbing, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Costello's Plumbing Services
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Costello's Plumbing Contact Information
Phone Number: (510) 415-0725
Address: 3826 Anza Way, San Leandro, CA 94578
Costello's Plumbing San Leandro
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Costello's Plumbing has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
4 projects
|
2025 |
|
4 projects
|
2024 |
|
5 projects
|
2023 |
Our building permit records indicate that Costello's Plumbing has worked on at least
13.0 projects over the past 3 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
|
11 projects
|
Plumbing projects |
|
6 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that Costello's Plumbing mostly works on
plumbing project
and sewer lateral
projects.
Pricing
|
3 projects
|
$5k-$20k |
|
1 project
|
$20k-$50k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Unit 19: new wiring from the main panel to a new sub-panel new wiring throughout the unit new bathroom fan with smoke damper new kitchen hood with smoke damper and rearrange existing cabinet in kitchen. unit 21: replace bathroom piping to copper
Valuation:
$30,000
Permit #:
B2025-01641
Status:
plancheck
Fee:
$752
Permit Type:
N/A
Building Type:
N/A
Reroute copper hot and cold supply to unit's kitchens above and below unit 8. tee off at laundry room. ( goes through units 6, 15, 17 1 and laundry room)
Valuation:
N/A
Permit #:
B2024-01311
Status:
issued
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
Repipe water lines in home with changeout with (n) 50 gallon water heater in same location in basement
Valuation:
$15,000
Permit #:
BRPLUMB-25-0187
Status:
complete
Fee:
$1,611
Permit Type:
Repipe
Building Type:
N/A
Replace 100 feet sewer line from back yard foundation to house trap in sidewalk. replace house trap
Valuation:
N/A
Permit #:
PP20250605684
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace and reroute all sewer drains addition in half bathroom drains and vents addition in water lines and water heater install and reroute and relocate
Valuation:
N/A
Permit #:
PP20231201276
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install (n) laundry box into (e) closet adjacent to kitchen. drain vent water & gas
Valuation:
N/A
Permit #:
PP20230328187
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new water service hot & cold install new gas line on through addition of home to dryer
Valuation:
N/A
Permit #:
PP20240223466
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace 10ft of sewer from building to house trap and replace house trap
Valuation:
N/A
Permit #:
PP20250605683
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; installing underground sewer and drain for new bathroom addition in basement. one toilet one sink and tiled shower stall. install rough water service for one bathroom in framing
Valuation:
N/A
Permit #:
PW20200504241
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replumbing hot and cold supply to copper in ceiling level of unit and tap on at unit #5
Valuation:
N/A
Permit #:
B2024-01310
Status:
issued
Fee:
$127
Permit Type:
N/A
Building Type:
N/A
Replace 4 existing cast iron plumbing with new at kitchen and bathroom. install new vents. new plumbing for upstairs kitchen installed from below
Valuation:
N/A
Permit #:
PP20190215182
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install (n) sewer lateral from house to city main inbackyard next to creek
Valuation:
$8,000
Permit #:
202100518
Status:
complete
Fee:
N/A
Permit Type:
Sewer replace/rep...
Building Type:
N/A
Work category: 2pa; updating new gas line to 1 inch gas main and earth quake shut off valve to 3 fixtures
Valuation:
N/A
Permit #:
PW20200615131
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace drain sewer in basement floor and under crawl space
Valuation:
N/A
Permit #:
PP20230918051
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install 75 gallon residential water heater in basement
Valuation:
N/A
Permit #:
PP20231130252
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace drain to vent and water service lines
Valuation:
$10,000
Permit #:
BRPLUMB-23-0158
Status:
complete
Fee:
N/A
Permit Type:
Water service
Building Type:
N/A
Replace drain to vent and water service lines
Valuation:
$10,000
Permit #:
BRPLUMB-23-0157
Status:
expired
Fee:
$589
Permit Type:
Drain line
Building Type:
N/A
Replace sewer lateral from house to curb (city trap0
Valuation:
N/A
Permit #:
PP20230817523
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; install laundry set up in living room closet
Valuation:
N/A
Permit #:
PW20200814809
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition gas service to stove 15 ft
Valuation:
N/A
Permit #:
BLD2021-05006
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Costello's Plumbing Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Costello's Plumbing License info
Verified License
| License # | 1018923 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Costello's Plumbing 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 | Mid Century Insurance Company |
33
Permits
- Building permit records show that Costello's Plumbing has worked on 33 permitted projects.
Costello's Plumbing Employees
GJ
Gary Martin Costello Jr
Owner