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Licensed Electricians in Castro Valley, California

Updated November 1, 2026 from CSLB's public license file · C-10 Electrical Contractor

  • 50licensed electricians
  • 50active (Clear)
  • 0%with a suspension
  • 64%workers' comp exempt
  • 16.5 yrsmedian time licensed
  • 40%corp / LLC / partnership (60% sole owner)
  • 3new in the last 12 months
  • —change tracking began November 1, 2026

CSLB's public data lists 50 electricians with a mailing address in Castro Valley, and 50 of them (100%) show a Clear primary status.

64% report a workers' comp exemption, 12.7 points higher than the statewide figure for electricians (51.3%), so many of these businesses say they have no employees. The share with a suspension, 0%, is 3.6 points lower than the Alameda County rate for the same license (3.6%).

3 of these licenses are less than a year old, while 62% have been held for 10 years or more. The median is 16.5 years.

In California this work generally calls for the C-10 Electrical Contractor license (or a B license when it is part of a larger multi-trade job). See the C-10 Electrical Contractor guide for what the license covers.

How to check an electrician's license in Castro Valley

  1. Find the business in the list below, or search all 50 Castro Valley listings, and open its profile. You want a Clear status and the C-10 classification (a B license can also cover it as part of a multi-trade job).
  2. Re-check the same number on CSLB's Instant License Check the day you sign; our copy is refreshed weekly and 0% of Castro Valley listings here already show a suspension.
  3. Match the license holder's name to the name on the written contract and the person you meet. Since 64% of Castro Valley electricians claim a workers' comp exemption, ask who will actually do the work. Hiring checklist.

All 50 electricians in Castro Valley

Castro Valley electricians sorted with Clear licenses first, then by years licensed. Badges reflect CSLB's file dated November 1, 2026, not a rating of anyone's work.

Licensed electricians in Castro Valley
Business nameLicense #StatusYearsWorkers' compBond
Paragon Electric 261291 Clear 56 Exempt On file
Croll Edwin T 368028 Clear 47 Exempt On file
Layne Electrical Ent 380217 Clear 47 Exempt On file
Mc Donagh John Builders and Energy Systems 422946 Clear 44 Exempt On file
Harvey Electric 457858 Clear 42 Insured On file
Merkouris Construction INC 464532 Clear 42 Insured On file
Mardigras Electric CO 504106 Clear 39 Exempt On file
Stanley Sound 508687 Clear 39 Exempt On file
Bay Electric CO 578212 Clear 37 Exempt On file
C A M Electric 611854 Clear 35 Exempt On file
Tang's Electric 661361 Clear 33 Exempt On file
J R S Electric 763900 Clear 27 Exempt On file
Big World Electric Company 770416 Clear 27 Exempt On file
Eastbay Electric 787116 Clear 26 Exempt On file
Wright Electrical Contractor the 826446 Clear 23 Exempt On file
Gibbs David Dean Builder 845636 Clear 22 Exempt On file
Bisimwa Electric 876478 Clear 20 Exempt On file
M L Electric 878028 Clear 20 Insured On file
A P C Construction 880085 Clear 20 Exempt On file
Neil Electric 882448 Clear 20 Exempt On file
Property Pros Construction INC 889146 Clear 19 Insured On file
Cisco Electric 908222 Clear 18 Exempt On file
Van Electric 911148 Clear 18 Exempt On file
Boulder Electric 917668 Clear 18 Exempt On file
Accel Electric 944497 Clear 16 Exempt On file
Castro Valley Electrical INC 949950 Clear 16 Exempt On file
Environmental In Ovations Corporation 955826 Clear 15 Exempt On file
Allied Controls 956704 Clear 15 Exempt On file
Mopia Electric LLC 957769 Clear 15 Insured On file
California Builders 988161 Clear 13 Insured On file
Buchmann INC 1004484 Clear 11 Insured On file
G R V Homeimprovement 1025118 Clear 9 Exempt On file
T V R Electric INC 1026571 Clear 9 Insured On file
Cota Electric INC 1029993 Clear 9 Insured On file
Voltron Electric INC 1030181 Clear 9 Insured On file
L E Electric INC 1063050 Clear 6 Insured On file
Electric AC Dc 1065330 Clear 6 Insured On file
Vonnegut Electric & Solar 1080386 Clear 5 Exempt On file
Russell Electric Corporation 1106773 Clear 3 Insured On file
Bay Design Electric 1112910 Clear 3 Exempt On file
Electricali 1116286 Clear 2 Exempt On file
Lee Jae 1118208 Clear 2 Exempt On file
Sigma HVAC & Electric INC 1128583 Clear 2 Insured On file
Field Knowledge Electric 1130987 Clear 1 Insured On file
Eco Solar Energy LLC 1141597 Clear 1 Insured On file
Ten Nine Construction 1142427 Clear 1 Exempt On file
Various Energy 1145723 Clear 1 Insured On file
Source Energy LLC 1147405 Clear <1 Exempt On file
Electrical Ministries 1151302 Clear <1 Insured On file
C W Electric 1155572 Clear <1 Exempt On file

Source: CSLB public data · Updated November 1, 2026 Status can change at any time. Verify on CSLB's Instant License Check.

Frequently asked questions

How many licensed electricians are in Castro Valley?

CSLB's current public file lists 50 electricians with a Castro Valley mailing address. 50 have a Clear status, and 90% show no issues at all in the file (no suspension, no pending action, bond on file, not near expiration).

What license does an electrician need in California?

Look for C-10 on the license. 50 businesses in Castro Valley hold it. Small jobs under $1,000 with no permit and no employees are exempt; everything else needs a license (details).

How do I check an electrician's workers' comp?

Each profile shows the workers' comp type, insurer and policy dates from CSLB's file. Among Castro Valley electricians, 64% are exempt (no employees), 36% insured and 0% without current coverage. Verify a policy with CSLB's insurer search (step by step).

Related

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Guides