Updated: Mar 29, 2026
Location and Projects
Address
1660 JERROLD AVE #B, San Francisco, CA, 94124
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D&S Leong Associates Plumber
D&S Leong Associates Inc, 1660 Jerrold Ave, San Francisco, CA (Employees: David See Hoon Leong, Elaine Chan, and Elaine Chan) holds a General Building, Fire Protection, Plumbing, Boiler, Hot Water Heating And Steam Fitting license according to the California license board.
Their BuildZoom score of 115 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring D&S Leong Associates Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
D&S Leong Associates Inc Services
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D&S Leong Associates Inc Contact Information
Phone Number: (415) 221-3838
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Address: 1660 JERROLD AVE #B, San Francisco, CA 94124
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D&S Leong Associates Inc San Francisco
Quality
115
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
D&S Leong Associates Inc has a BuildZoom score of 115, which places them above 98% of 336,931 contractors in California.
Activity
|
14 projects
|
2025 |
|
14 projects
|
2024 |
|
21 projects
|
2023 |
Our building permit records indicate that D&S Leong Associates Inc has worked on at least
49.0 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
|
4 projects
|
Commercial Renovations |
|
45 projects
|
Plumbing projects |
|
3 projects
|
Sewer laterals |
Analyzing permits over the last 4 years shows that D&S Leong Associates Inc mostly works on
plumbing project
and commercial renovation
projects.
Pricing
|
4 projects
|
< $5k |
|
4 projects
|
$5k-$20k |
|
4 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
2 projects
|
$100k-$250k |
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 D&S Leong Associates Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Work category: 2pb; plumbing for remodel 3 bathrooms laundry room sink washer/dryer catch base floor drains hose trap replacement roofing drain kitchen sink new water heater and new water service and gas line for all appliances
Valuation:
N/A
Permit #:
PW20250113283
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1p; remove all existing fire sprinkler heads and piping at elevator's machine rooms (for elevator 1 to 6 and 10 to 11 elevator) ref to building permit #202108236905 #202501037676
Valuation:
N/A
Permit #:
PW20250107147
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pb; plumbing work for 4 bathrooms kitchen sink washer/dryer gas line for stove and appliance install condensing water heater storage tank and 7 units of heating coils
Valuation:
N/A
Permit #:
PW20250316803
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remove all existing fire sprinkler heads and piping at elevator's machine rooms #s: 4 5 6 10 & 11 per d.r.w. ref permit building permit #202108236905
Valuation:
$2,500
Permit #:
202501037676
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
10 - office
Work category: 8p; demolish and remove existing boiler serial no: c06177118 replace with new laars hot water boiler at same location
Valuation:
N/A
Permit #:
PW20250330161
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace front window with wood aluminum craft casement window in kind.u factor 0.3 max. repair and replace front stucco. replace 8 non visible windows in kind along lightwell and rear building. u factor 0.3 max
Valuation:
$25,000
Permit #:
202402296853
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
1461 17th av: 2/f: renovate (e) bathroom and kitchen in0-kind. covert (e) office into 2 new bathrooms. all work on 2/f only. remodel living, dining and bedroom relocate (e) laundry. replace rear windows non street visiable and along lightwell. u-factor 0.30 or better
Valuation:
$48,000
Permit #:
202201075597
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
Work category: 4pa; relocate sprinkler head and install new head at bedroom and closet as per # permit #202505055808
Valuation:
N/A
Permit #:
PW20250513230
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
4/f & 6/f: tenant improvements - existing fire sprinkler system. added 21 and relocate 12 sprinklers. ref pa 201707283265 (work to be permoformed on lots: 201, 202, 203, 206, 210, 212, 213, 214, 217, 218, 219, 221, 222, 225, 226, 228, 229, 231)
Valuation:
$16,500
Permit #:
202110059795
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
92 - artist live/...
4/f: tenant improvements - existing fire sprinkler system 12 added sprinklers. original sprinkler pa 200902202506. (work to be performed on lots: 289, 290, 091, 292, 295, 296, 297, 298, 299, 300, 301, 302, 304, 305, 306, 310, 311, 312, 313)
Valuation:
$6,000
Permit #:
202110059789
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
24 - apartments
Fire permit - fire sprinkler - residence - single family dwelling duplex
2023-12-12
Install fire sprinkler system throughout building per nfpa13d 24 heads jj
Valuation:
$215,407
Permit #:
FR-2023-289599
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Front building - interior remodel of (e) single family dwelling; infill below 2nd fl a total of 10 sf; no change to front facade; no change to building height or depth; repair (e) foundation
Valuation:
$228,000
Permit #:
202110150530
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Addition 57 new pendent below new t-bar/dropped cieling per nfpa#13. addition 2 new dry pendent head per nfpa#13. ref pa #202212309578
Valuation:
$15,000
Permit #:
202508042211
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
91 - social care ...
Work category: 2pa; install combi boiler storage tank radiant heating system and pvc flue pipe
Valuation:
N/A
Permit #:
PW20250414522
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install (218) sprinklers throughout per nfpa#13. underground per nfpa# 24 & relocate (1) existing fire department connection to front lawn b.a.# 2019-0506-9853
Valuation:
$142,100
Permit #:
202102255402
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
-
Unit 1459: top floor replace rear yard facing 6 windows in kind: 4 windows along larger lightwell in kind and 2 windows in the smaller lightwell in kind. all windows are non visible to the street.u-factor 0.30 or better
Valuation:
$11,000
Permit #:
202201115804
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
28 - 2 family dwe...
This pays for inspections related to original permit # pw20210921945 filed 9/21/2021. dow: work category: 4pb; install fire sprinkler system per approved application #202102255402 for entire building and underground service
Valuation:
N/A
Permit #:
PW20210928149
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1p; replace broken house trap and section of sewer line to building line
Valuation:
N/A
Permit #:
PW20250219195
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 2pa; plumbing work for interior two bathrooms and kitchen remodel
Valuation:
N/A
Permit #:
PW20250101043
Status:
expired
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 11p; decommission and demolish peerless steam boiler serial number 61-88067-0797 and remove backflow device model febco serial number: ab222
Valuation:
N/A
Permit #:
PW20230417311
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
D&S Leong Associates Inc License info
Verified License
| License # | 618294 |
| Status | Active |
| State | California |
| Type | General Building, Fire Protection, Plumbing, Boiler, Hot Water Heating And Steam Fitting |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for D&S Leong Associates Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
115
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
838
Permits
- Building permit records show that D&S Leong Associates Inc has worked on 838 permitted projects.
D&S Leong Associates Inc Employees
DL
David See Hoon Leong
Rmo / Ceo / Pres
EC
Elaine Chan
Officer
EC
Elaine Chan
Officer
KL
Kenneth Z Liang
Officer