License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
WC exempt
No employees — exempt from requirement
Clean record
No complaints or disciplinary actions
Hiring this contractor?
Get alerts if their license status changes.
You're monitoring this license!
We'll email you if the license status, bond, or complaint history changes.
Something went wrong
Is this your business?
Claim your profile to manage your listing.
Claim request submitted!
We'll be in touch at the email you provided to verify your identity.
Something went wrong
A PLUMBING COMPANY
- License Number
- 867118
- State
- California
- Status
- active
- Business Type
- Sole Owner
- Address
- 21 CUTLER AVENUE SAN FRANCISCO, CA, 94116 San Francisco County
- Phone
- (415) 713 3186
License Dates
Issued
11/05/2005
Expires
03/31/2027
Expires in 12 months
Inactivated
12/01/2015
Reactivated
03/11/2019
CSLB Last Updated
03/05/2026
License Classifications
Personnel & Officers
ZHANG GUAN DONG
Sole Owner
Contractor Bond
Amount: $25,000
Company: AMERICAN CONTRACTORS INDEMNITY COMPANY
Bond #100541739
Effective: 01/01/2023
Cancelled: 04/03/2026
Workers' Compensation
Owner/officer with no employees — exempt from WC requirement
CSLB designation: Exempt
Complaints & Disciplinary History
This reflects CSLB's bulk license data. For detailed complaint history including pending investigations, check the official CSLB record.
Building Permits
Source: LA City Open Data (LADBS)
otc alterations permit
2774 Mcallister St, 94118
due to remodel 2 baths on kitchen & basement and bath on 1st floor, therefore to fully sprinkler the basement.
otc alterations permit
1893 Oakdale Av, 94124
install fire sprinkler system for entire bld per nfpa 13 under pa 201307222452 s1
$10,000
2019-08-21
additions alterations or repairs
150 Randall St, 94131
install new fire sprinkler system through out building per nfpa 13r total (58), sprinkler heads and 2" underground service. ref pa #2017-1218-6762. nfpa 13 in garage sprinkler monitoring sep permit. n
$26,000
2018-12-20
Verify this record on the official state licensing board
View on Contractors State License Board (CSLB) →Learn how to verify contractor licenses in California
California licensing guide →Data sourced from official state licensing board records. Always confirm critical information directly with the state board.
Verify Another Contractor
Homeowner Resources
Other Licensed C16| C36 in SAN FRANCISCO
H & L CONSTRUCTION INC
License #1018299 · CA
WESTEC INVESTMENT AND CONSTRUCTION INC
License #1086326 · CA
KWAN CHOK KEE INC
License #1087358 · CA
J & J PROFESSIONAL PLUMBING INC
License #1134496 · CA
PRO PLUMBING & FIRE SPRINKLER INC
License #1004754 · CA