Updated: Nov 09, 2025
Location and Projects
Address
P O BOX 1069, Downey, CA, 90240
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Core Construction LLC
Core Construction LLC, Downey, Po Box 1069, Downey, CA (Employees: Raul Echemendia and Raul Echemendia) holds a General Building license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Core Construction LLC, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Core Construction LLC Services
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Core Construction LLC Contact Information
Phone Number: (562) 477-5373
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Address: P O BOX 1069, Downey, CA 90240
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Core Construction LLC Downey
Quality
94
76th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Core Construction LLC has a BuildZoom score of 94, which places them above 76% of 336,931 contractors in California.
Activity
|
1 project
|
2022 |
Our building permit records indicate that Core Construction LLC 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 Core Construction LLC
This is a sample of this contractor's permits. Click here to access their complete permit history.
Revisions b202004682 - (2) metal posts to be placed in substitution of original wood posts
Valuation:
$2,500
Permit #:
B202205481
Status:
plancheck
Fee:
$798
Permit Type:
N/A
Building Type:
N/A
Addition 2 lifht fixtures and exterior outlet. new water filter. infill exterior window. finish to match existing color
Valuation:
N/A
Permit #:
BLD-18-00645
Status:
complete
Fee:
$183
Permit Type:
N/A
Building Type:
N/A
Grading: cut 0 cy; fill 150; import 150 cy; export 0 cy
Valuation:
N/A
Permit #:
BLD-18-01255
Status:
expired
Fee:
$795
Permit Type:
N/A
Building Type:
N/A
New single family home 4500 sq. ft. with 245 sqft balcony garage 805 sqft with 987 sqft driveway and patio 1088 sqft
Valuation:
$700,949
Permit #:
BLD-18-01683
Status:
expired
Fee:
$22,381
Permit Type:
N/A
Building Type:
N/A
Phase 3: front façade remodel - adding new parapet; new front & rear glazing and new electrical
Valuation:
N/A
Permit #:
BLD-19-01014
Status:
expired
Fee:
$2,219
Permit Type:
N/A
Building Type:
N/A
Job source - phase 1: interior tenant improvement - 1 421 sqft (suites 102 & 103) to remove & replace existing partion walls & remodel restrooms. work includes related electrical & plumbing. ***phase 2 to be under separate permit*** ***on 9/11/17 - adding (2) 125 amp sub panels.***
Valuation:
N/A
Permit #:
BLD-19-01037
Status:
expired
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
Phase 2 glazing (5). addition structural beam. demolish 256 sqft of exterior wall
Valuation:
N/A
Permit #:
BLD-19-01036
Status:
expired
Fee:
$314
Permit Type:
N/A
Building Type:
N/A
Demolish house 3090 with carport 194 sqft and garage 800 sqft
Valuation:
$27,853
Permit #:
BLD-19-01882
Status:
expired
Fee:
$839
Permit Type:
N/A
Building Type:
N/A
Relocate trash enclosure to allow for 2 additional parking spaces at rear wall re-stripe rear parking stalls and relocate (e) rear ada stall. construct new trash enclosure
Valuation:
N/A
Permit #:
BLD-20-01272
Status:
complete
Fee:
$386
Permit Type:
N/A
Building Type:
N/A
Single family dwelling or duplex residential - plumbing permits
2018-07-26
Residential plumbing permit - cap off sewer with dem18-00021
Valuation:
N/A
Permit #:
PLM18-00368
Status:
expired
Fee:
$145
Permit Type:
N/A
Building Type:
N/A
Residential demolish permit - 695 sq ft pool demolish
Valuation:
$1,091
Permit #:
DEM18-00022
Status:
expired
Fee:
$1,268
Permit Type:
N/A
Building Type:
N/A
Residential demolish permit - 2863 sq ft demolish single family dwelling with 540 sq ft garage - 4 bedrooms
Valuation:
$4,495
Permit #:
DEM18-00021
Status:
expired
Fee:
$4,672
Permit Type:
N/A
Building Type:
N/A
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Core Construction LLC Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Core Construction LLC License info
Verified License
| License # | 990781 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Ltd Liability |
- BuildZoom verified this license was active as of November 2025.
Verify this license's status for Core Construction LLC at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Insured
| Insurer | Scottsdale Insurance Company |
| Insured up to | $1,000,000 |
Bonded
| Bonded Agent | State Farm Fire & Casualty Company |
| Bond Value | $15,000 |
6
Permits
- Building permit records show that Core Construction LLC has worked on 6 permitted projects.
Core Construction LLC Employees
RE
Raul Echemendia
Rmm
RE
Raul Echemendia
Rmm