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Electrical contractorWest Covina, CA

Tang Ly Duong

Licensed since 1996 · Sole Owner · 4 building permits on record

CSLB #720921 · ActiveWorkers' comp insuredBonded $25,000
License classes
B General BuildingC-10 ElectricalC-20 HVACC-36 Plumbing
4
Permits on record
2 jurisdictions
0
Permits in 3 years
last Jun 30, 2021

Work history

Building permits: City of Los Angeles, City of Anaheim

Permits by year

3202012021
Data covers City of Los Angeles 2006–Oct 2026; City of Anaheim 1999–Sep 2026.

What they build

HVAC
3
Remodel / addition
1

Most recent permits

IssuedWorkJurisdictionZIP
Jun 30, 2021Remodel / additionCity of Anaheim—
Mar 16, 2020HVACCity of Los Angeles90031
Mar 16, 2020HVACCity of Los Angeles90031
Mar 16, 2020HVACCity of Los Angeles90031
Only the type of work, date and ZIP are shown — never homeowner names or street addresses.
Permits are matched to this contractor by CSLB license number on the permit

Where they work

Building permits

Jurisdictions

Los Angeles
3
Anaheim
1

Top ZIP codes

  • ZIP 900313
Area is where permits were issued, not the office address

License, bond & insurance

California Contractors State License Board
  • CSLB license#720921 · Active
  • Business typeSole Owner
  • Issued · expiresApr 4, 1996 · Apr 30, 2028
  • OfficeWest Covina, CA 91790
  • CSLB record updatedAug 28, 2026
  • Contractor bond$25,000 · since Aug 25, 2026
  • Bond companyAtlantic Specialty Insurance Company
  • Workers' compensationWorkers' Compensation Insurance · until Apr 24, 2027
  • InsurerState Compensation Insurance Fund

License classes

B General BuildingC-10 ElectricalC-20 HVACC-36 Plumbing
Always confirm a license on cslb.ca.gov before signingCheck another license

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Questions & answers

Is Tang Ly Duong licensed?
CSLB license #720921 is active, issued Apr 4, 1996 and valid through Apr 30, 2028, with classes B, C-10, C-20, C-36.
Is Tang Ly Duong insured and bonded?
CSLB lists workers' compensation insurance with State Compensation Insurance Fund until Apr 24, 2027 and a $25,000 contractor bond with Atlantic Specialty Insurance Company.
How many jobs has Tang Ly Duong done?
Building permits name the company on 4 jobs, including 3 hvac, 1 remodel / addition.
Where does Tang Ly Duong work?
Most permits are in City of Los Angeles, City of Anaheim.

Sources

  1. Contractors State License Board — license, bond and workers' comp records (Aug 28, 2026).
  2. Building permits — City of Los Angeles, City of Anaheim.
Answers use only the facts on this pageIs this your business? Update listing