Updated: Apr 17, 2026
Location and Projects
Address
P O BOX 6773, Concord, CA, 94524
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Cal Tec Electrical Systems
Cal Tec Electrical Systems, Concord, Po Box 6773, Concord, CA (Employee: Justin William Keesler) holds a Electrical license according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cal Tec Electrical Systems, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Cal Tec Electrical Systems Contact Information
Phone Number: (925) 354-2256
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Address: P O BOX 6773, Concord, CA 94524
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Cal Tec Electrical Systems Concord
Quality
95
78th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cal Tec Electrical Systems has a BuildZoom score of 95, which places them above 78% of 336,931 contractors in California.
Activity
|
1 project
|
2023 |
Our building permit records indicate that Cal Tec Electrical Systems has worked on at least
1.0 project over the past 3 years.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.
Pricing
|
1 project
|
< $5k |
Pro tip:
For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.
Building Permits by Cal Tec Electrical Systems
This is a sample of this contractor's permits. Click here to access their complete permit history.
Change out sub panel like for like in garage
Valuation:
$2,500
Permit #:
B2301-0006
Status:
final
Fee:
$183
Permit Type:
Electrical
Building Type:
N/A
Electrical service upgrade overhead from 100 amp to 200 amp replace sub panel at existing location and replace sub feed
Valuation:
$6,500
Permit #:
B201848
Status:
final
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
Upgrade main panel to 400 amp. recd aic letter from pg&e. (pg&e pm # 35079860)
Valuation:
N/A
Permit #:
BIE19-010014
Status:
final
Fee:
$300
Permit Type:
N/A
Building Type:
N/A
Main service panel upgrade and relocation 125 amps. sub panel change/ relocation in garage.
2 new lighting circuits and 1 kitchen gfci circuit and 2 bathroom outlet circuits
Valuation:
$4,000
Permit #:
B162592
Status:
final
Fee:
$169
Permit Type:
N/A
Building Type:
N/A
Service change and relocation of electrical service panel will be relocated about 100 ft closer to the street and on a different building on same property using the existing 200 amps
Valuation:
N/A
Permit #:
BIE15-001578
Status:
final
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
Replace existin goutdated sub-panel at electrical room with new sub-panel (with all new breakers) and clean up wiring entering panel. install 4 switches for main lighting *** no increase to electrial loads per contractor ***
Valuation:
N/A
Permit #:
BIEC11-008786
Status:
final
Fee:
$155
Permit Type:
N/A
Building Type:
N/A
Relocate and install new sub panel from hall closet to adjacent bedroom
Valuation:
N/A
Permit #:
BIE15-010574
Status:
final
Fee:
$142
Permit Type:
N/A
Building Type:
N/A
Upgrading electric service meter main from 100 amp to 200 amp in the same location
Valuation:
N/A
Permit #:
E13-088
Status:
final
Fee:
$146
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BI-2013-0370
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Electrical service upgrade from 100 to 200 amps at existing location
Valuation:
N/A
Permit #:
BIE14-002292
Status:
final
Fee:
$131
Permit Type:
N/A
Building Type:
N/A
Upgrade two subpanels subpanel in closet will be relocated to laundry room. addition ground rods to main panel and install gfci throughout the house
Valuation:
$1,500
Permit #:
BIE11-001576
Status:
final
Fee:
$141
Permit Type:
N/A
Building Type:
N/A
New meter main panel upgrading from existing. 125 amp panel. also from panel to well pump running new underground circuit
Valuation:
N/A
Permit #:
BI396210
Status:
final
Fee:
$78
Permit Type:
N/A
Building Type:
N/A
200a elect service upgrade; misc interior wiring; ground or gfi all outlets; addition 20a gfi circiut
Valuation:
$2,500
Permit #:
BP09001347
Status:
final
Fee:
$96
Permit Type:
N/A
Building Type:
N/A
Electrical service change to 200 amp; sub-panel upgrade
Valuation:
$3,300
Permit #:
BP06003167
Status:
final
Fee:
$201
Permit Type:
N/A
Building Type:
N/A
Full kitchen remodel per plans
Valuation:
N/A
Permit #:
BI398322
Status:
final
Fee:
$329
Permit Type:
N/A
Building Type:
N/A
Replace sub-panel
Valuation:
$1,200
Permit #:
BP06003278
Status:
final
Fee:
$80
Permit Type:
N/A
Building Type:
N/A
Upgrade existing service to 200 amps & relocate subpanel
Valuation:
$2,900
Permit #:
BD12-0113
Status:
final
Fee:
$205
Permit Type:
Repair
Building Type:
N/A
Installation of a fire alarm monitoring system for ulta
Valuation:
N/A
Permit #:
13-00193
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
No Description Available
Valuation:
N/A
Permit #:
BI-2013-0370
Status:
complete
Fee:
N/A
Permit Type:
Electrical permit...
Building Type:
N/A
Change out fuse box in nursery to subpanel change out f.p.e panel board to new updated subpanel/panel board. no new load added. using all existing circuits
Valuation:
N/A
Permit #:
BIEC15-006824
Status:
expired
Fee:
$192
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Cal Tec Electrical Systems License info
Verified License
| License # | 874850 |
| Status | Active |
| State | California |
| Type | Electrical |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Cal Tec Electrical Systems at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
20
Permits
- Building permit records show that Cal Tec Electrical Systems has worked on 20 permitted projects.
Cal Tec Electrical Systems Employees
JK
Justin William Keesler
Sole Owner