Updated: Feb 20, 2026
Location and Projects
Address
3201 DIABLO AVE, Hayward, CA, 94545
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Backyard Builders Electrician
Backyard Builders Inc, 3201 Diablo Ave, Hayward, CA (Employees: Joseph Stephen Johnston and Nicholas Lee Werho) holds a General Building, Electrical license according to the California license board.
Their BuildZoom score of 107 ranks in the top 6% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Backyard Builders Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Backyard Builders Inc Contact Information
Phone Number: (510) 791-7433
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Address: 3201 DIABLO AVE, Hayward, CA 94545
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Backyard Builders Inc Hayward
Quality
107
94th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Backyard Builders Inc has a BuildZoom score of 107, which places them above 94% of 336,931 contractors in California.
Activity
|
5 projects
|
2025 |
|
14 projects
|
2024 |
|
9 projects
|
2023 |
Our building permit records indicate that Backyard Builders Inc has worked on at least
28.0 projects 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.
Experience
|
25 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Backyard Builders Inc mostly works on
electrical project
projects.
Pricing
|
14 projects
|
< $5k |
|
2 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
4 projects
|
$50k-$100k |
The typical size of their permits is approximately $3,865. This graph shows the distribution of these job values.
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 Backyard Builders Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Building 154 s.f. accessory structure with single 120 volt 20 amp electrical circuit. circuit consists of 6 led ceiling lights 6 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$49,190
Permit #:
B2024-01914
Status:
issued
Fee:
$1,058
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 5 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$4,500
Permit #:
BL-ELER-2024-00331
Status:
complete
Fee:
$423
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 2 motion/photo sensing exterior light. structure is not for habitation
Valuation:
N/A
Permit #:
E24-133
Status:
final
Fee:
$127
Permit Type:
N/A
Building Type:
Dwellings
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 2 motion/photo sensing exterior light. structure is not for habitation
Valuation:
N/A
Permit #:
PRE24-00600
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$4,016
Permit #:
B24-1275
Status:
final
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$4,016
Permit #:
B24-1246
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20-amp multi-wire branch circuit to new exempt 120 sf accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$3,733
Permit #:
BLD24-00725
Status:
final
Fee:
$574
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$3,865
Permit #:
B24-0553
Status:
final
Fee:
$126
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$3,865
Permit #:
B24-0482
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
(n) 168 sf accessory structure with single 120 volt 20 amp multi-wire branch circuit. structure is not for habitation
Valuation:
$52,000
Permit #:
BLD2025-04730
Status:
complete
Fee:
$2,631
Permit Type:
Other
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 gfci protected exterior receptacle 1 motion/photo sensing exterior light
Valuation:
N/A
Permit #:
DEV23-1779
Status:
final
Fee:
$170
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 7 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$36,500
Permit #:
E24-206
Status:
final
Fee:
$118
Permit Type:
N/A
Building Type:
Dwellings
Install single 120 volt 20 amp multi-wire branch circuit to exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 7 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
N/A
Permit #:
PRE24-01175
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp electrical circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$2,600
Permit #:
BIE24-002488
Status:
applied
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp electrical circuit to new exempt 100 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$3,400
Permit #:
B23-0848
Status:
final
Fee:
$121
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp electrical circuit to new 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$2,395
Permit #:
BLD23-69163
Status:
final
Fee:
$807
Permit Type:
N/A
Building Type:
N/A
***scope clarification - this is permitted as a workshop versus a shed because of the electrical (10-28-21-dd)*** install 120 sq ft shed single 120volt 20amp electrical circuit. circuit consists of 4 led ceiling lights (4) gfci protected receptacles (1) motion/photo sesing exterior light. structure is not for habitation (bldg/elec)
Valuation:
$34,000
Permit #:
CB21-0547
Status:
final
Fee:
$3,030
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp electrical circuit to new accessory structure (120sf height: 9'9"). circuit consists of (4) led ceiling lights (4) gfci protected receptacles (1) motion/photo sensing exterior light. structure is not for habitation. accessory structure must conform to setbacks/zoning requirements
Valuation:
$3,800
Permit #:
BLD2022-08366
Status:
complete
Fee:
$314
Permit Type:
New accessory str...
Building Type:
N/A
Install single 120 volt 20 amp multi-wire branch circuit to new exempt 120 s.f. accessory structure. circuit consists of 4 led ceiling lights 4 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$3,400
Permit #:
BLD2024-02142
Status:
complete
Fee:
$154
Permit Type:
N/A
Building Type:
N/A
Install single 120 volt 20 amp multi wire branch circuit to new exempt 96 s.f. accessory structure. circuit consists of 4 led ceiling lights 5 gfci protected receptacles 1 motion/photo sensing exterior light. structure is not for habitation
Valuation:
$3,270
Permit #:
B23-3279
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Backyard Builders Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Backyard Builders Inc License info
Verified License
| License # | 1062810 |
| Status | Active |
| State | California |
| Type | General Building, Electrical |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Backyard Builders Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
107
BuildZoom Score
Bonded
| Bonded Agent | Suretec Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Department Of Industrial Relations |
73
Permits
- Building permit records show that Backyard Builders Inc has worked on 73 permitted projects.
Backyard Builders Inc Employees
JJ
Joseph Stephen Johnston
Rme
NW
Nicholas Lee Werho
Rmo / Ceo / Pres