License is active
Source: Contractors State License Board (CSLB)
Licensed
Current and in good standing
Bonded
$25,000 surety bond
Insured
Workers' comp coverage on file
Clean record
No complaints or disciplinary actions
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MASTER ROOFING COMPANY
DBA: SAMJIN CONSTRUCTION INC
- License Number
- 921058
- State
- California
- Status
- active
- Business Type
- Corporation
- Address
- 2250 E 12TH STREET OAKLAND, CA, 94606 Alameda County
- Phone
- (510) 532 3482
License Dates
Issued
08/20/2008
Expires
08/31/2026
Expires in 5 months — verify renewal before long contracts
CSLB Last Updated
05/16/2025
License Classifications
Personnel & Officers
LEE DANIEL SUNG| LEE DAE SUNG
Responsible Managing Employee
Qualifier bond: PLATTE RIVER INSURANCE COMPANY
KWON SOON IL
Responsible Managing Officer
AU MASON MYOUNGSUN
Chief Executive Officer/President
CHUN SANG CHO
Responsible Managing Officer
AU NANJOO LEE| AU NANJOO
Officer
AU DIANA YOUNG
Officer
Contractor Bond
Amount: $25,000
Company: MERCHANTS BONDING COMPANY (MUTUAL)
Bond #101233146
Effective: 08/15/2024
Workers' Compensation
Carrier: STATE COMPENSATION INSURANCE FUND
Policy #9098246
Effective: 06/01/2014
Expires: 06/01/2026
CSLB designation: Workers' Compensation Insurance
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
500 Church St, 94114
reroofing hot works
$25,000
2025-12-03
otc alterations permit
8 Samoset St, 94110
re-roofing: remove and replace roofing material / existing roofing material (in-kind)
$8,750
2025-08-21
otc alterations permit
1016 Washington St, 94108
re-roofing with hot work
$10,000
2025-02-19
otc alterations permit
154 04th Av, 94118
reroofing
$24,500
2023-04-28
otc alterations permit
881 Pacheco St, 94116
reroofing
$11,500
2020-02-28
otc alterations permit
1718 36th Av, 94122
re-roofing
$12,250
2019-11-12
otc alterations permit
945 Shotwell St, 94110
reroofing
$21,500
2019-10-07
otc alterations permit
346 Arleta Av, 94134
reroofing
$8,000
2016-03-16
otc alterations permit
2434 California St, 94115
remodeling (e) vacant fitness center into a hair salon on the 1st floor to include new partitions, lighting, electrical & plumbing
$56,576
2010-04-29
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.
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