Updated: Jan 21, 2026
Location and Projects
Address
600 Kentucky St, Fairfield, CA, 94533
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4K Construction
4K Construction, 600 Kentucky St, Fairfield, CA (Employee: Eliseo Castro Garcia Jr) holds a General Building license according to the California license board.
Their BuildZoom score of 97 ranks in the top 18% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring 4K Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
4K Construction Services
Start a project today:
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Boiler/Water Heater
Fire Sprinkler Systems
Gas and Piping
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Plumbing
Small Multi-Family Remodel ...
Whole Home Remodel
Attic Remodel
Single Room Remodel
Cosmetic Remodel
4K Construction Contact Information
Phone Number: (707) 704-9860
Address: 600 Kentucky St, Fairfield, CA 94533
4K Construction Fairfield
Quality
97
82nd percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
4K Construction has a BuildZoom score of 97, which places them above 82% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
Our building permit records indicate that 4K Construction has worked on at least
1.0 project 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.
Pricing
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.
Hdb # 25-003076. changeout like for like boiler unit same location. install 2 additional tankless water heater in the laundry area
Valuation:
$50,000
Permit #:
COM-2502284
Status:
final
Fee:
$1,071
Permit Type:
N/A
Building Type:
N/A
Epc -shared plans (2) w com-2324327 - building a unit 221 - voluntary seismic retrofit of soft-story. shared plans reviewed under com-2324327 see revision com-2405881: revised foundation revised detail on sheet s.2 section a-a
Valuation:
$50,000
Permit #:
COM-2324329
Status:
expired
Fee:
$1,861
Permit Type:
N/A
Building Type:
N/A
Epc -shared plans (2) w com-2324329 building a unit 225 - voluntary seismic retrofit of soft-story. shared plans reviewed under com-2324327 see revision com-2405881: revised foundation revised detail on sheet s.2 section a-a
Valuation:
$50,000
Permit #:
COM-2324327
Status:
expired
Fee:
$2,006
Permit Type:
N/A
Building Type:
N/A
Addition: 1st floor: addition 97 sq ft to create new stairway to 2nd floor; addition 469 sq ft to create new unconditioned storage area; 2nd floor: addition 782 sq ft to create 1 new bedroom 1 bedroom/study & 3 bathrooms; addition 408 sq ft to create unconditioned storage area; remodel - 1st floor: convert existing bedroom into new 1-car garage; 2nd floor: new window in existing bonus... see more
Valuation:
$35,268
Permit #:
BLD2010-01661
Status:
final
Fee:
$9,015
Permit Type:
N/A
Building Type:
N/A
R r - composition roof like for like
Valuation:
$15,000
Permit #:
1808-0287
Status:
issued
Fee:
$268
Permit Type:
Re-roof with tear...
Building Type:
N/A
4K Construction Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
4K Construction License info
Verified License
| License # | 909161 |
| Status | Active |
| State | California |
| Type | General Building |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for 4K Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
97
BuildZoom Score
Bonded
| Bonded Agent | State National Insurance Company Inc |
| Bond Value | $15,000 |
4K Construction Employees
EJ
Eliseo Castro Garcia Jr
Sole Owner