Updated: Feb 21, 2026
Location and Projects
Address
PO BOX 1057, Petaluma, CA, 94953
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O'CALLAGHAN PLUMBING INC
O'CALLAGHAN PLUMBING INC at PO BOX 1057, Petaluma, CA 94953, held a Plumber license (#993035) with the California contractors license board with an expiration date of 04-01-2025. We last verified the license was inactive on 02-20-2026.
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.
O'CALLAGHAN PLUMBING INC Services
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O'CALLAGHAN PLUMBING INC Contact Information
Phone Number: (707) 788-6999
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Address: PO BOX 1057, Petaluma, CA 94953
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O'CALLAGHAN PLUMBING INC Petaluma
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are O'CALLAGHAN PLUMBING INC, click “This is My Business” to update your information.
Activity
|
1 project
|
2025 |
Our building permit records indicate that O'CALLAGHAN PLUMBING INC has worked on at least
1.0 project over the past year.
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.
Pricing
|
1 project
|
< $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 O'CALLAGHAN PLUMBING INC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition underground gas from meter to pool pad for heater 2 firepit location and bbq. total 200 of piping yellow poly pipe socket fusion with risers
Valuation:
$4,000
Permit #:
B30893
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
40 gallon water heater replacement domestic 3/4 water main from meter to house new domestic water piping trough out house
Valuation:
N/A
Permit #:
BLD22-5426
Status:
issued
Fee:
$305
Permit Type:
N/A
Building Type:
N/A
Encroachment - sidewalk sewer water monitoring wells misc
2022-10-28
Remove piece of sidewalk repair collapsed lateral sewer 2 in depth replace section of sidewalk
Valuation:
N/A
Permit #:
PWEP-2022-0480
Status:
complete
Fee:
$362
Permit Type:
N/A
Building Type:
N/A
Addition underground gas line to new fire pit and bbq
Valuation:
$2,750
Permit #:
PLMR-2023-0120
Status:
expired
Fee:
$170
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; moved and replaced gas line for range moved kitchen sink approx. 12 added refrigerator line
Valuation:
N/A
Permit #:
PW20190529366
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; new copper water lines through out home where accessable. move kitchen sink a location. move gas for new range location
Valuation:
N/A
Permit #:
PW20180104357
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace domestic water line from meter to house. upsizing from 3/4 to 1: soft copper - leaking 2000
Valuation:
$6,000
Permit #:
B2022-0037
Status:
expired
Fee:
$162
Permit Type:
Residential
Building Type:
N/A
Laundry box installed move gas for range move hose bib stub outs for lavy & kitchen sink
Valuation:
N/A
Permit #:
PP20160428014
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace water heater; gas line for new range
Valuation:
N/A
Permit #:
P1603-079
Status:
final
Fee:
$102
Permit Type:
Alter-sfd
Building Type:
N/A
Work category: 2pa; addition laundry drain and hot and cold domestic water supply to unit
Valuation:
N/A
Permit #:
PW20200825121
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace damaged water main
Valuation:
$4,500
Permit #:
B2016-0131
Status:
final
Fee:
$145
Permit Type:
Res-oss
Building Type:
N/A
Moving kitchen waste vent domestic water remove all removing wet bar
Valuation:
N/A
Permit #:
PP20150403391
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace water heater
Valuation:
N/A
Permit #:
P1603-080
Status:
final
Fee:
$102
Permit Type:
Alter-sfd
Building Type:
N/A
Water heater
Valuation:
N/A
Permit #:
P1704-069
Status:
final
Fee:
$102
Permit Type:
Alter-sfd
Building Type:
N/A
Units 1035/1037/1039 union street: reroute gas lines
Valuation:
N/A
Permit #:
PP20160208740
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Plumbing for interior remodel
Valuation:
N/A
Permit #:
RP1401490
Status:
final
Fee:
$382
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; supply gas to new dryer location
Valuation:
N/A
Permit #:
PW20200908403
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sewer lateral
Valuation:
N/A
Permit #:
P1410-059
Status:
final
Fee:
$102
Permit Type:
Alter-sfd
Building Type:
N/A
Plumbing for interior remodel
Valuation:
N/A
Permit #:
RP1401490
Status:
PERMIT ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; 40 gallon water heater replacement
Valuation:
N/A
Permit #:
PW20200615167
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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O'CALLAGHAN PLUMBING INC Reviews
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O'CALLAGHAN PLUMBING INC License info
Inactive License
| License # | 993035 |
| 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 O'CALLAGHAN PLUMBING INC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
- How the BuildZoom Score works
- *No active license on file. If you are O'CALLAGHAN PLUMBING INC, click “This is My Business” to update your information.
Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Hartford Underwriters Insurance Company |
18
Permits
- Building permit records show that O'CALLAGHAN PLUMBING INC has worked on 18 permitted projects.
O'CALLAGHAN PLUMBING INC Employees
JO
Jacob Richard O'callaghan
RMO / CEO / PRES