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Electrical contractorNorco, CA

Tier One

Licensed since 1993 · Corporation · 17 building permits on record

CSLB #669871 · ActiveWorkers' comp insuredBonded $25,000
License classes
B General BuildingC-10 Electrical
17
Permits on record
2 jurisdictions
1
Permits in 3 years
last Mar 17, 2025

Work history

Building permits: City of Los Angeles, City of Anaheim

Permits by year

72021820221202312025
Data covers City of Los Angeles 2006–Oct 2026; City of Anaheim 1999–Sep 2026.

What they build

Electrical
6
Remodel / addition
3
Plumbing
3
HVAC
3
Other building work
2

Most recent permits

IssuedWorkJurisdictionZIP
Mar 17, 2025ElectricalCity of Anaheim—
Mar 29, 2023ElectricalCity of Los Angeles90744
Aug 28, 2022ElectricalCity of Anaheim—
Jul 7, 2022HVACCity of Los Angeles90018
Apr 13, 2022ElectricalCity of Los Angeles90018
Mar 16, 2022PlumbingCity of Los Angeles90037
Jan 31, 2022PlumbingCity of Los Angeles90018
Jan 31, 2022HVACCity of Los Angeles90018
Jan 31, 2022Other building workCity of Los Angeles90018
Jan 26, 2022ElectricalCity of Los Angeles90037
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
13
Anaheim
4

Top ZIP codes

  • ZIP 900186
  • ZIP 900376
  • ZIP 907441
Area is where permits were issued, not the office address

License, bond & insurance

California Contractors State License Board
  • CSLB license#669871 · Active
  • Business typeCorporation
  • Issued · expiresApr 22, 1993 · Apr 30, 2027
  • OfficeNorco, CA 92860
  • CSLB record updatedJun 12, 2026
  • Contractor bond$25,000 · since Jan 1, 2023
  • Bond companyTravelers Casualty And Surety Company Of America
  • Workers' compensationWorkers' Compensation Insurance · until Jun 12, 2027
  • InsurerInsurance Company Of The West

License classes

B General BuildingC-10 Electrical
Always confirm a license on cslb.ca.gov before signingCheck another license

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Questions & answers

Is Tier One licensed?
CSLB license #669871 is active, issued Apr 22, 1993 and valid through Apr 30, 2027, with classes B, C-10.
Is Tier One insured and bonded?
CSLB lists workers' compensation insurance with Insurance Company Of The West until Jun 12, 2027 and a $25,000 contractor bond with Travelers Casualty And Surety Company Of America.
How many jobs has Tier One done?
Building permits name the company on 17 jobs, including 6 electrical, 3 remodel / addition, 3 plumbing.
Where does Tier One work?
Most permits are in City of Los Angeles, City of Anaheim.

Sources

  1. Contractors State License Board — license, bond and workers' comp records (Jun 12, 2026).
  2. Building permits — City of Los Angeles, City of Anaheim.
Answers use only the facts on this pageIs this your business? Update listing