Updated: Jun 06, 2026
Location and Projects
Address
2711 20TH STREET, San Francisco, CA, 94110
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Gabriel F Yu HVAC/Mechanical Contractor
Gabriel F Yu at 2711 20TH STREET, San Francisco, CA 94110, held a HVAC/Mechanical Contractor license (#656322) with the California contractors license board with an expiration date of 10-31-2010. We last verified the license was expired on 06-05-2026.
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 bidding system to be easily matched to qualified, licensed professionals in your area.
Gabriel F Yu Contact Information
Phone Number: (415) 490-8618
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Address: 2711 20TH STREET, San Francisco, CA 94110
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Install new toilet and shower relocate water heater and reroute ductwork for existing furnace
Valuation:
N/A
Permit #:
420943
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replces with forced air gas furnaces including ductwork - amendment to permit no. 385262
Valuation:
N/A
Permit #:
386417
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install furnace for additional remodeling portion including ductwork
Valuation:
N/A
Permit #:
388338
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace old furnace with new one and hook up to the same flue
Valuation:
N/A
Permit #:
445282
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new flue vent for existing furnace and water heaters
Valuation:
N/A
Permit #:
414689
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing gravity furnace with forced air gas furnace
Valuation:
N/A
Permit #:
347904
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing gravity furnace with forced air gas furnace
Valuation:
N/A
Permit #:
347665
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace a new furnace and connect flue to the existing
Valuation:
N/A
Permit #:
446788
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace existing gravity furnace with forced air furnace
Valuation:
N/A
Permit #:
383884
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install a upflow furnace in garage including ductwork
Valuation:
N/A
Permit #:
323516
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace old furnace with high efficiency furnace
Valuation:
N/A
Permit #:
444862
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install three heating systems including duct works
Valuation:
N/A
Permit #:
396376
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Final inspection - amendment to permit no. 352632
Valuation:
N/A
Permit #:
358856
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install of two heating systems including duct work
Valuation:
N/A
Permit #:
347666
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install forced air gas furnace including ductwork
Valuation:
N/A
Permit #:
333674
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install two furnaces with air conditioning system
Valuation:
N/A
Permit #:
345496
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new flue for furnaces & water heaters
Valuation:
N/A
Permit #:
457767
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Replace new flue for furnace and water heater
Valuation:
N/A
Permit #:
448422
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install new furnace attached to existing flue
Valuation:
N/A
Permit #:
440635
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installing heating system including ductwork
Valuation:
N/A
Permit #:
414687
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Gabriel F Yu License info
Inactive License
| License # | 656322 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| 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 Gabriel F Yu at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
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BuildZoom Score
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- *No active license on file. If you are Gabriel F Yu, click “This is My Business” to update your information.
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $12,500 |
65
Permits
- Building permit records show that Gabriel F Yu has worked on 65 permitted projects.
Gabriel F Yu Employees
GY
Gabriel Fat Yu
Sole Owner