Updated: May 28, 2026
Location and Projects
Address
1059 SAN MATEO AVENUE, San Bruno, CA, 94066
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Southwood Plumbing Inc
Southwood Plumbing Inc, 1059 San Mateo Ave, San Bruno, CA (Employees: Denis Michael O'halloran, Frank Joseph O'halloran Sr, and Marciana Jane O'halloran) holds a Plumbing, Warm Air Heating, Ventilating And Air Conditioning license and 4 other licenses according to the California license board.
Their BuildZoom score of 102 ranks in the top 11% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Southwood Plumbing Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Southwood Plumbing Inc Services
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Southwood Plumbing Inc Contact Information
Phone Number: (650) 756-5325
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Address: 1059 SAN MATEO AVENUE, San Bruno, CA 94066
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Southwood Plumbing Inc San Bruno
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Southwood Plumbing Inc has a BuildZoom score of 102, which places them above 89% of 336,931 contractors in California.
Activity
|
7 projects
|
2025 |
|
5 projects
|
2024 |
|
7 projects
|
2023 |
Our building permit records indicate that Southwood Plumbing Inc has worked on at least
19.0 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
|
15 projects
|
Plumbing projects |
Analyzing permits over the last 4 years shows that Southwood Plumbing Inc mostly works on
plumbing project
projects.
Pricing
|
5 projects
|
< $5k |
|
1 project
|
$5k-$20k |
The typical size of their permits is approximately $4,000. This graph shows the distribution of these job values.
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 Southwood Plumbing Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove existing 40 gallon water heater and install new 40 gallon bradford white water heater
Valuation:
N/A
Permit #:
BLD-2025-168
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Supplemental to permit 23044-90000-24419 to correct address is 313 s vermont ave
Valuation:
N/A
Permit #:
23044-40001-24419
Status:
final
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Remove and replace furnace
Valuation:
N/A
Permit #:
BLD-2025-397
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace sewer from back of house to easement at fence in backyard via open trench. approx 40 feet
Valuation:
$12,500
Permit #:
MEP-2024-292844
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace water heater
Valuation:
$1,708
Permit #:
B25-0992
Status:
final
Fee:
$204
Permit Type:
Residential
Building Type:
N/A
Replace 1 40 gallon gas water heater in apartment 6. replace 1 30 gallon water heater in laundry room
Valuation:
N/A
Permit #:
23042-90000-06833
Status:
issued
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Replace existing tank water heater with new tank less type water heater
Valuation:
N/A
Permit #:
21042-90000-85418
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Excavate in front of unit a5 replace 4 backwater valve install access box and backfill sewer inspections 650-738-4660 or 738-7472
Valuation:
$2,500
Permit #:
52098-20
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove sidewalk squares excavate to trap at 4'-6 depth install new trap and vent
Valuation:
N/A
Permit #:
PP20231229626
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace bradford white 50 gallon direct vent water heater
Valuation:
$3,000
Permit #:
B24-0291
Status:
final
Fee:
$174
Permit Type:
Residential
Building Type:
N/A
Separate lateral from 323 and 321 acacia - see notes
Valuation:
N/A
Permit #:
B22-0031
Status:
issued
Fee:
$568
Permit Type:
Alterations
Building Type:
N/A
Public works - encroachment permits (general construction)
2025-01-09
Replace failed water service from meter to house
Valuation:
N/A
Permit #:
EP-2024-000009
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install seismic valve
Valuation:
N/A
Permit #:
23042-90000-10037
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Replace gas line
Valuation:
$5,000
Permit #:
B23-0743
Status:
issued
Fee:
$184
Permit Type:
Alterations
Building Type:
N/A
Public works - encroachment permits (general construction)
2025-02-26
Replace sewer lateral in rear easement
Valuation:
$12,500
Permit #:
EP-2024-000145
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; replace sewer from trap to garage
Valuation:
N/A
Permit #:
PW20210106628
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace failed water service from meter to house. ep-2024-000009
Valuation:
$5,000
Permit #:
MEP-2023-292363
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Repair upper lateral & install building & sidewalk co
Valuation:
$4,000
Permit #:
B23-1980
Status:
issued
Fee:
$389
Permit Type:
Alterations
Building Type:
N/A
Pull permit for reinstalling existing gravity wall furnace that was removed
Valuation:
N/A
Permit #:
19044-90000-13956
Status:
triage
Fee:
N/A
Permit Type:
Apartment
Building Type:
N/A
Replace p trap at backyard fence
Valuation:
N/A
Permit #:
PP20240320916
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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BZ Score
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Projects
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Verified License
BuildZoom confirmed this contractor's license
Southwood Plumbing Inc License info
Verified License
| License # | 818070 |
| Status | Active |
| State | California |
| Type | Plumbing, Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Southwood Plumbing Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 770065 |
| Status | Active |
| State | California |
| Type | Plumbing, Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Southwood Plumbing 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 # | 753809 |
| 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. If this is your business, please update your license status.
Check this license's status for Southwood Plumbing 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 # | 651357 |
| 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. If this is your business, please update your license status.
Check this license's status for Southwood Plumbing 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 # | 616778 |
| Status | Inactive |
| State | California |
| Type | Plumbing, Warm Air Heating, Ventilating And Air Conditioning |
| 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. If this is your business, please update your license status.
Check this license's status for Southwood Plumbing Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
440
Permits
- Building permit records show that Southwood Plumbing Inc has worked on 440 permitted projects.
Southwood Plumbing Inc Employees
DO
Denis Michael O'halloran
Sole Owner
FS
Frank Joseph O'halloran Sr
General Partner
MO
Marciana Jane O'halloran
Officer
SS
Santos Sanchez
Sole Owner
SS
Santos Sanchez
Rmo / Ceo / Pres