Updated: Jul 23, 2026
Location and Projects
Address
725 33RD AVE, San Francisco, CA, 94121
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Ping S Plumbing
Ping S Plumbing, 725-33 Rd Ave, San Francisco, CA (Owned by: Zhan Ping Zhou) holds a Plumbing license and 1 other license according to the California license board.
Their BuildZoom score of 104 ranks in the top 9% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Ping S Plumbing, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Ping S Plumbing Services
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Ping S Plumbing Contact Information
Phone Number: (415) 812-2034
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Address: 725 33RD AVE, San Francisco, CA 94121
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Work category: 5p; construct plumbing waste vent and water supply system on 2nd floor for 5 hand sinks & 3rd floor for 2 bathrooms and connect to existing plumbing system as per plumbing plans
Valuation:
N/A
Permit #:
PW20251001480
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
This pays for inspections related to original permit # pw20230303173 filed 3/3/2023. dow: work category: 2pb; revision to pa # pw20230303173 to install water pipe from water meter to the house and otain inspection for shower water proofing
Valuation:
N/A
Permit #:
PW20230614808
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; change two bathtubs to showers. replace two toilets and two bathroom vanities. addition plumbing box for laundry. addition condensate drains for 5 wall mount heat pumps
Valuation:
N/A
Permit #:
PW20240822065
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 5p; install replace plumbing systems for acupuncture dental offfices and common area bathrooms as per approved plumbing plans
Valuation:
N/A
Permit #:
PW20220219995
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Decommision 3x boilers- 1) pto 140065 sn# 57749 2) pto 139417 sn# ma93 0258682920 and 3) pto 139418 sn# mk90 0181477 880
Valuation:
N/A
Permit #:
PP20240627592
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 3pa; 3rd floor partial tenant improvement to replace 20 sinks install 1 drinking fountain and connect to existing plumbing system
Valuation:
N/A
Permit #:
PW20231022040
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; replace install 2 hand sinks 1 mop sink and 1 ada bathroom with 1 toilet & 1 sink per approved plumbing plans
Valuation:
N/A
Permit #:
PW20220812017
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; installing 1 toilet 1 map sink 3 hand sinks and 1 20-gal water heater as per approval plumbing plans
Valuation:
N/A
Permit #:
PW20220103663
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 6pb; install replace plumbing system as per approval plumbing plans
Valuation:
N/A
Permit #:
PW20230110839
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; to file a permit extension. continue work for the plumbing permit: pw20200821995
Valuation:
N/A
Permit #:
PW20210903439
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; install additional 1 mop sink and 1 20-gal water heater reference to the permit # pw20220812017
Valuation:
N/A
Permit #:
PW20231012831
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1p; replace plumbing pipes for kitchen and bathrooms
Valuation:
N/A
Permit #:
PW20230303173
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; install replace plumbing system for clinics-medic dental office
Valuation:
N/A
Permit #:
PW20240227922
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; install construct plumbing system as per approved plumbing plans
Valuation:
N/A
Permit #:
PW20220515474
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; replace ~10-ft water supply pipe from water meter to building
Valuation:
N/A
Permit #:
PW20220701847
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; replace toilets & sinks and relocate gas line to new location in the 2 residential units
Valuation:
N/A
Permit #:
PW20211012589
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; extend plumbing permit # pw20210922966 for final plumbing inspection
Valuation:
N/A
Permit #:
PW20230716524
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; re-open plumbing permit: pw20190924150 for final plumbing inspection
Valuation:
N/A
Permit #:
PW20210318706
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; shower pan waterproofing for 5 bathrooms
Valuation:
N/A
Permit #:
PW20210106632
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove unpermited plumbing lines to comply with nov# 202315150
Valuation:
N/A
Permit #:
PP20231128206
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Ping S Plumbing License info
Verified License
| License # | 1030547 |
| Status | Active |
| State | California |
| Type | Plumbing |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Ping S Plumbing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 874923 |
| 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 Ping S Plumbing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
48
Permits
- Building permit records show that Ping S Plumbing has worked on 48 permitted projects.
Ping S Plumbing Employees
WC
Wai Yin Cheung
Officer
ZZ
Zhan Ping Zhou
Rmo / Ceo / Pres
ZZ
Zhan Ping Zhou
Owner