Updated: Apr 29, 2026
Location and Projects
Address
P O BOX 5300, South San Francisco, CA, 94083
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Winnie Wong Engineer
Winnie Wong, S San, Po Box 5300, South San Francisco, CA (Employee: Winnie Wong) holds a General Engineering, General Building license and 1 other license according to the California license board.
Their BuildZoom score of 96 ranks in the top 20% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Winnie Wong, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Winnie Wong Contact Information
Phone Number: (415) 812-8300
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Address: P O BOX 5300, South San Francisco, CA 94083
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Winnie Wong South San Francisco
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Winnie Wong has a BuildZoom score of 96, which places them above 80% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
Our building permit records indicate that Winnie Wong 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
|
$250k-$500k |
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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Lower fl: lower sub fl for ceiling height addition two bedrooms media/entertainment laundry mechanical room two 3-fixture bathrooms. install mini split hvac tankless water heater relocate stairs. upper fl: reconfigure for 2 bedrooms two baths walk in closet kitchen dining living room new furnace
Valuation:
$350,000
Permit #:
202502240896
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
27 - 1 family dwe...
Lower fl: lower sub fl for ceiling height addition two bedrooms media/entertainment laundry mechanical room two 3-fixture bathrooms. install mini split hvac tankless water heater relocate stairs. upper fl: reconfigure for 2 bedrooms two baths walk in closet kitchen dining living room new furnace. addition a subpanel on 2/f. upgrade service 200 amp
Valuation:
N/A
Permit #:
E20250311862
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Lower fl: lower sub fl for ceiling height addition two bedrooms media/entertainment laundry mechanical room two 3-fixture bathrooms. install mini split hvac tankless water heater relocate stairs. upper fl: reconfigure for 2 bedrooms two baths walk in closet kitchen dining living room. 4 shower pan with underground work
Valuation:
N/A
Permit #:
PP20250311023
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Relocate furance to ceiling install mini split on lower floor
Valuation:
N/A
Permit #:
PM20250311024
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Zoning permit for vacation rental request for a zoning permit to designate an existing primary dwelling as a vacation rental with four (4) guest rooms and overnight occupancy of ten (10) people maximum. 24-hour complaint response contact (360-317-4878)
Valuation:
$0
Permit #:
ZPE15-0013
Status:
PAID
Fee:
$352
Permit Type:
N/A
Building Type:
N/A
Legalize existing 10 x 20 storage area
Valuation:
$4,300
Permit #:
BLDG980075
Status:
final
Fee:
$233
Permit Type:
N/A
Building Type:
N/A
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Winnie Wong Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Winnie Wong License info
Verified License
| License # | 1119231 |
| Status | Active |
| State | California |
| Type | General Engineering, General Building |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Winnie Wong at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 6382 |
| Status | Active |
| State | California |
| Type | Interior Designer |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Winnie Wong at the California Council for Interior Design Certification.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
Bonded
| Bonded Agent | North River Insurance Company (The) |
| Bond Value | $25,000 |
Winnie Wong Employees
WW
Winnie Wong
Sole Owner