Updated: May 09, 2026
Location and Projects
Address
1221 S NEFF AVE, West Covina, CA, 91790
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Ultimax Electric Corp
Ultimax Electric Corp, 1221 S Neff Ave, West Covina, CA (Employees: Ming Li Zhang and Wenfan Xu) holds a Electrical license according to the California license board.
Their BuildZoom score of 108 ranks in the top 5% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Ultimax Electric Corp, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Ultimax Electric Corp Contact Information
Phone Number: (626) 708-8686
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Address: 1221 S NEFF AVE, West Covina, CA 91790
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Ultimax Electric Corp West Covina
Quality
108
95th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Ultimax Electric Corp has a BuildZoom score of 108, which places them above 95% of 336,931 contractors in California.
Activity
|
2 projects
|
2026 |
|
74 projects
|
2025 |
Our building permit records indicate that Ultimax Electric Corp has worked on at least
76.0 projects over the past year.
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
|
76 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Ultimax Electric Corp mostly works on
electrical project
projects.
Pricing
|
26 projects
|
< $5k |
|
1 project
|
$500k-$1mil |
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 Ultimax Electric Corp
This is a sample of this contractor's permits. Click here to access their complete permit history.
Wmsr-08: [new/replace] panel/switchbrd | wmsr-09: [new] power apparatus_kw/hp/kva | additional details: upgrade existing 100a main panel to 200a panel. install new 240v nema 14-50 outlet for ev charging. new circuit rated at 50a with gfci protection
Valuation:
N/A
Permit #:
00962066-WMSR
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Wmsr-01: [new/replace] lights/outlets/switches | wmsr-08: [new/replace] panel/switchbrd | additional details: upgrade existing 100a main electrical panel to 200a. install new 240v outlet for ev charger. no structural modifications
Valuation:
N/A
Permit #:
00961101-WMSR
Status:
final
Fee:
$59
Permit Type:
N/A
Building Type:
N/A
200 amp main panel upgrade & install ev charger
Valuation:
N/A
Permit #:
B25-1070
Status:
final
Fee:
$533
Permit Type:
N/A
Building Type:
N/A
Wmsr-08: [new/replace] panel/switchbrd | wmsr-09: [new] power apparatus_kw/hp/kva | additional details: upgrade main electrical panel to 200a. install 50a circuit for ev charger (nema 14-50 plug-in 12kw)
Valuation:
N/A
Permit #:
00959700-WMSR
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Wmsr-08: [new/replace] panel/switchbrd | wmsr-09: [new] power apparatus_kw/hp/kva | additional details: upgrade main electrical panel to 200a. install 50a circuit for ev charger ( nema 14-50 plug-in 12kw)
Valuation:
N/A
Permit #:
00959699-WMSR
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Upgrade existing electrical panel to 200a capacity. install 240v ev charger outlet nema 14-50) inside the garage. scope of work includes wiring breaker installation stucco patch and paint finish
Valuation:
$1,000
Permit #:
B202506895
Status:
issued
Fee:
$342
Permit Type:
N/A
Building Type:
N/A
Upgrade existing electrical panel to 200a capacity. install 240v ev charger (nema 14-50) inside the garage. scope of work includes wiring breaker installation stucco patch and paint finish
Valuation:
$4,000
Permit #:
BPA25-2131
Status:
app submitted
Fee:
N/A
Permit Type:
Residential
Building Type:
N/A
Upgrade existing 100a main electrical panel to 200a. install a 240v ev charger (nema 14-50 outlet) inside the garage on the wall near the panel. no structural work
Valuation:
N/A
Permit #:
PMT2025-04266
Status:
final
Fee:
$505
Permit Type:
N/A
Building Type:
N/A
Upgrade existing 100a main electrical panel to 200a. install a 240v ev charger (nema 14-50 outlet) inside the garage on the wall near the panel. no structural work
Valuation:
N/A
Permit #:
PMT2025-03250
Status:
complete
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
Main panel upgrade to 200 amps and install (1) (n) 50amp 240v ev outlet for future use
Valuation:
$3,000
Permit #:
B202508072
Status:
final
Fee:
$279
Permit Type:
N/A
Building Type:
N/A
Main panel upgrade to 200 amps and install (1) (n) 50amp 240v ev outlet for future use
Valuation:
N/A
Permit #:
B202508071
Status:
issued
Fee:
$278
Permit Type:
N/A
Building Type:
N/A
Main panel upgrade to 200 amps and install (1) (n) 50amp 240v ev outlet for future use
Valuation:
N/A
Permit #:
B202508070
Status:
issued
Fee:
$278
Permit Type:
N/A
Building Type:
N/A
Main panel upgrade to 200 amps and install (1) (n) 50amp 240v ev outlet for future use
Valuation:
N/A
Permit #:
B202508069
Status:
issued
Fee:
$278
Permit Type:
N/A
Building Type:
N/A
Panel upgrade to 200a and 240v nema outlet(12kw) for ev charger installation (ev charger outlet installation not included on this permit)
Valuation:
N/A
Permit #:
PMT2025-04275
Status:
withdrawn
Fee:
$228
Permit Type:
N/A
Building Type:
N/A
Upgrade existing electrical panel from 100amp to 200 amp install new breakers to ensure code compliance. install new 240 v outlet
Valuation:
$1,000
Permit #:
B202506191
Status:
issued
Fee:
$342
Permit Type:
N/A
Building Type:
N/A
Panel upgrade to 200a and 240v nema outlet(12kw) for ev charger installation outside the garage
Valuation:
N/A
Permit #:
PMT2025-04283
Status:
final
Fee:
$506
Permit Type:
N/A
Building Type:
N/A
Panel upgrade to 200a and 240v nema outlet(12kw) for ev charger installation outside of garage
Valuation:
N/A
Permit #:
PMT2025-04280
Status:
final
Fee:
$506
Permit Type:
N/A
Building Type:
N/A
Upgrade to 200a main service panel and relocate to exterior rear wall. install exterior ev charger
Valuation:
N/A
Permit #:
PMT2025-02877
Status:
final
Fee:
$483
Permit Type:
N/A
Building Type:
N/A
Panel upgrade from 100a to 200a and 240v nema charger outlet installation(12 kw)
Valuation:
$1,000
Permit #:
B202507244
Status:
issued
Fee:
$342
Permit Type:
N/A
Building Type:
N/A
Panel upgrade from 100a to 200a and 240v nema charger outlet installation(12 kw)
Valuation:
$4,500
Permit #:
BPA25-2234
Status:
app submitted
Fee:
N/A
Permit Type:
Residential
Building Type:
N/A
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Ultimax Electric Corp Reviews
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Verified License
BuildZoom confirmed this contractor's license
Ultimax Electric Corp License info
Verified License
| License # | 1137030 |
| Status | Active |
| State | California |
| Type | Electrical |
| Business Type | Corporation |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Ultimax Electric Corp at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
108
BuildZoom Score
Bonded
| Bonded Agent | Nationwide Mutual Insurance Company |
| Bond Value | $25,000 |
76
Permits
- Building permit records show that Ultimax Electric Corp has worked on 76 permitted projects.
Ultimax Electric Corp Employees
MZ
Ming Li Zhang
Rmo
WX
Wenfan Xu
Ceo / President