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Electrical contractorConcord, CA

Cornerstone Environmental Contractors Inc

Licensed since 1996 · Corporation · 9 building permits on record

CSLB #722253 · ActiveWorkers' comp insuredBonded $25,000
License classes
A General EngineeringC-10 ElectricalD-21HAZ Hazardous Substance Removal
9
Permits on record
2 jurisdictions
0
Permits in 3 years
last Dec 13, 2019

Work history

Building permits: City of Anaheim, City of Los Angeles

Permits by year

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

What they build

Remodel / addition
4
Electrical
3
Other building work
2

Most recent permits

IssuedWorkJurisdictionZIP
Dec 13, 2019Other building workCity of Los Angeles91311
Nov 21, 2019Other building workCity of Los Angeles90045
Nov 18, 2019ElectricalCity of Los Angeles91311
Aug 21, 2019ElectricalCity of Los Angeles91311
Jan 21, 2003ElectricalCity of Anaheim—
Feb 4, 2001Remodel / additionCity of Anaheim—
Jan 3, 2001Remodel / additionCity of Anaheim—
Jun 18, 2000Remodel / additionCity of Anaheim—
Jun 18, 2000Remodel / additionCity of Anaheim—
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

Anaheim
5
Los Angeles
4

Top ZIP codes

  • ZIP 913113
  • ZIP 900451
Area is where permits were issued, not the office address

License, bond & insurance

California Contractors State License Board
  • CSLB license#722253 · Active
  • Business typeCorporation
  • Issued · expiresMay 2, 1996 · May 31, 2028
  • OfficeConcord, CA 94524
  • CSLB record updatedSep 17, 2026
  • Contractor bond$25,000 · since Jan 1, 2023
  • Bond companyAmerican Contractors Indemnity Company
  • Workers' compensationWorkers' Compensation Insurance · until Mar 29, 2027
  • InsurerOak River Insurance Company

License classes

A General EngineeringC-10 ElectricalD-21HAZ Hazardous Substance Removal
Always confirm a license on cslb.ca.gov before signingCheck another license

Questions & answers

Is Cornerstone Environmental Contractors Inc licensed?
CSLB license #722253 is active, issued May 2, 1996 and valid through May 31, 2028, with classes A, C-10, D-21, HAZ.
Is Cornerstone Environmental Contractors Inc insured and bonded?
CSLB lists workers' compensation insurance with Oak River Insurance Company until Mar 29, 2027 and a $25,000 contractor bond with American Contractors Indemnity Company.
How many jobs has Cornerstone Environmental Contractors Inc done?
Building permits name the company on 9 jobs, including 4 remodel / addition, 3 electrical, 2 other building work.
Where does Cornerstone Environmental Contractors Inc work?
Most permits are in City of Anaheim, City of Los Angeles.

Sources

  1. Contractors State License Board — license, bond and workers' comp records (Sep 17, 2026).
  2. Building permits — City of Anaheim, City of Los Angeles.
Answers use only the facts on this pageIs this your business? Update listing