Updated: May 14, 2026
Location and Projects
Address
3740 San Leandro St, Oakland, CA, 94601
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Orson Mechanical Co Inc
Orson Mechanical Co Inc at 3740 San Leandro St, Oakland, CA 94601, held a HVAC/Mechanical Contractor license (#620313) with the California contractors license board with an expiration date of 05-08-2023. We last verified the license was inactive on 05-13-2026.
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.
Orson Mechanical Co Inc Contact Information
Phone Number: (510) 714-7428
Address: 3740 San Leandro St, Oakland, CA 94601
Building Permits by Orson Mechanical Co Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Work category: 1m; install a ductless mini split heat pump unit
Valuation:
N/A
Permit #:
PMW20210715080
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work category: 1m; installation of furnace ducting vents
Valuation:
N/A
Permit #:
PMW20210330023
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of bathroom vents dryer vents kitchen hood vents and ductless split air-conditionings
Valuation:
N/A
Permit #:
PM20190327368
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install (2) central heating systems bathroom and kitchen hoods exhaust
Valuation:
N/A
Permit #:
PM20190717599
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Installation of 2 split heat pumps
Valuation:
N/A
Permit #:
PM20191227271
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert warehouse to furniture warehouse; add 2 ac units w/ 2 separate low pressure duct systems; 2 condensate drains. note: there's a separate mechanical permit for bathrms only.
Valuation:
$0
Permit #:
M0001899
Status:
Expired
Fee:
$159
Permit Type:
N/A
Building Type:
N/A
7, 467 sf. spec interior finish to create a total of 8 tenant spaces at vacant 2nd floor of existing building
Valuation:
$142,648
Permit #:
2002 044280 CI
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Hvac convert warehouse to furniture warehouse; addition 2 air conditioning units w 2 separate low pressure duct systems; 2 condensate drains. note: there's a separate mechanical permit for bathrms only
Valuation:
N/A
Permit #:
M0001899
Status:
EXPIRED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical for office space 3,392 sq. ft. work includes bldg. partitions, interior finishes, plbg. elec. & hvac insulation on 4th fl.
Valuation:
$0
Permit #:
M0001602
Status:
Final
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Two new 7, 467 sf. spec interior finish to create a total of 8 tenant spaces at vacant 2nd floor of existing building
Valuation:
$0
Permit #:
2002 051270 CI
Status:
Finaled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install three central heating system including new duct work & flue vents 1345, 1347, 1349 page street
Valuation:
$0
Permit #:
PP20070719688
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Cw foothill inc. -
Valuation:
N/A
Permit #:
BI-2008-0630
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Cw foothill inc. -
Valuation:
N/A
Permit #:
BI-2008-0631
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Work @ 6th floor. install new split heat pump systems bathroom exhaust kitchen exhaust
Valuation:
$0
Permit #:
PM20090630356
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical for ventilation sysytem, t.i. (basement, 1st, 2nd, 3rd, 4th, and 10th floors.)
Valuation:
$0
Permit #:
M0100187
Status:
Expired
Fee:
$235
Permit Type:
N/A
Building Type:
N/A
2 new furnaces (1 furnace on 1st floor & 1 furnace on 2nd floor) duct work and flue vents. ref building. permit application #200808078635
Valuation:
N/A
Permit #:
PM20081205212
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Moving house approximately 20-30 feet new foundation; adding room
Valuation:
$40,000
Permit #:
B1995-02833
Status:
Closed Complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Existing furnace replacement
Valuation:
$0
Permit #:
PM20120229803
Status:
COMPLETED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Mechanical t.i. - subdivision of existing ground floor into five retail spaces
Valuation:
$0
Permit #:
M9700204
Status:
Final
Fee:
$83
Permit Type:
N/A
Building Type:
N/A
Install two heating system including new furnaces ducktwork flues
Valuation:
$0
Permit #:
PM20080926287
Status:
COMPLETED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Orson Mechanical Co Inc License info
Inactive License
| License # | 620313 |
| Status | Inactive |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning |
| Business Type | Corporation |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Orson Mechanical Co Inc 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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Bonded
| Bonded Agent | Wesco Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Mid Century Insurance Company |
233
Permits
- Building permit records show that Orson Mechanical Co Inc has worked on 233 permitted projects.
Orson Mechanical Co Inc Employees
OP
Orson Kwok-Bong Poon
Rmo / Ceo / Pres