Updated: Nov 16, 2025
Location and Projects
Address
8909 ELMONT AVE, Downey, CA, 90240
Use our bidding system to
request a quote
Alexsander Cornejo Construction
Alexsander Cornejo, 8909 Elmont Ave, Downey, CA (Employee: Alexsander De Jesus Cornejo) holds a General Building license and 1 other license according to the California license board.
Their BuildZoom score of 102 ranks in the top 11% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Alexsander Cornejo, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Alexsander Cornejo Services
Start a project today:
Custom Home Build
New Home Construction
Medium Multi-Family New Con...
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Roofing
Framing
Backsplash and Countertops
Stonework
Tile Flooring
Other Stone and Tile
Flatwork Concrete
Foundations
Other Concrete
Skylights
Pole Barn
Restaurant New Construction
Retail New Construction
Office Building New Constru...
Industrial New Construction
Hotel New Construction
Warehouse New Construction
Other Commercial New Constr...
ADU
Small Multi-Family New Cons...
Small Multi-Family Remodel ...
Whole Home Remodel
Modular Home Construction
Pool House
Other Secondary Structure N...
Addition
Alexsander Cornejo Contact Information
Phone Number: (562) 319-3178
Address: 8909 ELMONT AVE, Downey, CA 90240
Alexsander Cornejo Downey
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Alexsander Cornejo has a BuildZoom score of 102, which places them above 89% of 336,931 contractors in California.
Activity
|
2 projects
|
2024 |
|
3 projects
|
2023 |
|
4 projects
|
2022 |
Our building permit records indicate that Alexsander Cornejo has worked on at least
9.0 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
|
5 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Alexsander Cornejo mostly works on
home addition
projects.
Pricing
|
1 project
|
< $5k |
|
2 projects
|
$20k-$50k |
|
1 project
|
$50k-$100k |
|
4 projects
|
$100k-$250k |
The typical size of their permits is approximately $59,825. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Proposed (n) attached 2-story adu 998sqft
Valuation:
$165,339
Permit #:
BLD-24-02092
Status:
issued
Fee:
$13,336
Permit Type:
N/A
Building Type:
N/A
Convert attached garage to jadu 423sqft workflow will be tracked on permit bld-24-02092
Valuation:
$59,825
Permit #:
BLD-24-02093
Status:
issued
Fee:
$4,970
Permit Type:
N/A
Building Type:
N/A
Proposed addition to and conversion of garage to adu per lamc 12.22 a.33 (c)-(d)
Valuation:
$30,000
Permit #:
21014-10000-04687
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Convert garage to adu with one story addition per lamc 12.22 a.33(c) and (d)
Valuation:
$105,000
Permit #:
21014-10000-02660
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Addition of 655 sf and remodel of 153 sf
Valuation:
$110,825
Permit #:
BLD-22-02350
Status:
final
Fee:
$8,773
Permit Type:
N/A
Building Type:
N/A
Supplemental permit to 21014-10000-04687 to revise bathroom layout. infill exterior door
Valuation:
$501
Permit #:
21014-10001-04687
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Supplemental permit to 21014-10000-04687 for (n) footing
Valuation:
$1,000
Permit #:
21014-10002-04687
Status:
final
Fee:
N/A
Permit Type:
1 or 2 family dwe...
Building Type:
N/A
Proposed 1 story adu 795 sqft
Valuation:
$116,388
Permit #:
BLD-22-02200
Status:
final
Fee:
$9,402
Permit Type:
N/A
Building Type:
N/A
(n) 262 sf patio cover with pitched roof
Valuation:
$29,145
Permit #:
BLD-22-02056
Status:
expired
Fee:
$1,628
Permit Type:
N/A
Building Type:
N/A
Convert (e) garage to adu 484 sf concrete walkway 96 sf
Valuation:
$50,857
Permit #:
BLD-20-01084
Status:
complete
Fee:
$2,750
Permit Type:
N/A
Building Type:
N/A
Convert garage to adu 407 sqft
Valuation:
$40,542
Permit #:
BLD-21-01584
Status:
complete
Fee:
$2,632
Permit Type:
N/A
Building Type:
N/A
Convert (e) garage to adu 212.6 sf - letter of transfer on file by owner. bld-22-02221
Valuation:
N/A
Permit #:
BLD-23-00471
Status:
final
Fee:
$379
Permit Type:
N/A
Building Type:
N/A
Alexsander Cornejo Reviews
BuildZoom hasn't received any reviews for Alexsander Cornejo. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Alexsander Cornejo License info
Verified License
| License # | 1065145 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of September 2025.
Verify this license's status for Alexsander Cornejo at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 1060110 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- According to the California Contractors State License Board, the status of this license was at one point cancelled. However, this information may have changed.
Check this license's status for Alexsander Cornejo at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
10
Permits
- Building permit records show that Alexsander Cornejo has worked on 10 permitted projects.
Alexsander Cornejo Employees
AC
Alexsander De Jesus Cornejo
Rmo / Ceo / Pres