Updated: Jun 01, 2026
Location and Projects
Address
PO BOX 1092, Bethel Island, CA, 94511
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Coster Construction
Coster Construction, Bethel Is, Po Box 1092, Bethel Island, CA (Employees: Fredrick Alvin Coster and Fredrick Alvin Coster Jr) holds a General Building license and 2 other licenses according to the California license board.
Their BuildZoom score of 92 ranks in the top 32% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Coster Construction, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Coster Construction Services
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Coster Construction Contact Information
Phone Number: (925) 684-0505
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Address: PO BOX 1092, Bethel Island, CA 94511
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Interior remodel kitchen, restroom and dinning room area for concord tap house restaurant.
2/13/2018 submitted sump pump information
addendum on 3/28/18: revised front exterior elevation glazing to a new 12" roll up door glass aluminum door.
Valuation:
$100,000
Permit #:
B172326
Status:
issued
Fee:
$6,742
Permit Type:
N/A
Building Type:
N/A
1) kitchen remodel to remove and replace fixtures and appliances at same locaiton 2) upgrade electrical 4) master bathroom remodel to remove and replace fixtures at same location (shower sink toilet) 5) remove and replace master batrhoom exhaust fan 6) hall bathroom remodel to remove and replace fixtures at same location (sink tub and toilet) 7) remove and replace hall bathoom exhaust... see more
Valuation:
$30,200
Permit #:
2018 126101 RS
Status:
final
Fee:
N/A
Permit Type:
Single family
Building Type:
N/A
Kitchen bathroom remodel roof overlay
Valuation:
$12,000
Permit #:
B1807-0039
Status:
issued
Fee:
$332
Permit Type:
Alteration
Building Type:
N/A
Remodel existing single family dwelling & addition porch 150 sq ft
Valuation:
$20,000
Permit #:
B14-0633
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert unapproved garage conversion to storage. #0803722. permit must be finalled by 4-4-12
Valuation:
$2,000
Permit #:
RB1103539
Status:
final
Fee:
$220
Permit Type:
N/A
Building Type:
N/A
Remove and replace two windows in kitchen. repaired siding as needed to repair leak./rf08-00061 inspection must be scheduled within 15 days
Valuation:
N/A
Permit #:
BI409096
Status:
final
Fee:
$203
Permit Type:
N/A
Building Type:
N/A
Cap storage shed plumbing to source. #0803722. permit must be finalled by 4-4-12
Valuation:
N/A
Permit #:
RP1102163
Status:
final
Fee:
$163
Permit Type:
N/A
Building Type:
N/A
New swimming pool
Valuation:
$50,000
Permit #:
15-0001
Status:
issued
Fee:
$1,691
Permit Type:
Residential
Building Type:
N/A
Ktichem remodel and open up existing wall
Valuation:
N/A
Permit #:
BIAL13-002648
Status:
final
Fee:
$821
Permit Type:
N/A
Building Type:
N/A
Repair master bath: r/r shower and walls. replace deck and patio cover
Valuation:
$4,000
Permit #:
D110317
Status:
final
Fee:
$433
Permit Type:
Asfr
Building Type:
N/A
Construct new attached garage with laundry area 513 sf and roofed porch 215 sf. (rev 9/22/14: addition 562 sq ft habitable space remodel 1374 sq ft rebuild 68 sq ft open roof porch & rebuild 2 patios 100 sq ft change entire roof line from flat to pitched per truss calcs 2600 sq ft.)200 amp service panel added 3/19/2015
Valuation:
$44,000
Permit #:
B12-0278
Status:
final
Fee:
$9,439
Permit Type:
N/A
Building Type:
N/A
Tenant improvement. - nail salon - 1200 sq ft (b/e/p)
Valuation:
$21,000
Permit #:
B0025086
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Addition of guest room attached to (e) garage 390 sf
Valuation:
N/A
Permit #:
P04-425
Status:
final
Fee:
$94
Permit Type:
N/A
Building Type:
N/A
Addition of guest room attached to (e) garage 390 sf
Valuation:
N/A
Permit #:
M04-329
Status:
final
Fee:
$76
Permit Type:
N/A
Building Type:
N/A
Addition of guest room attached to (e) garage 390 sf
Valuation:
N/A
Permit #:
E04-473
Status:
final
Fee:
$171
Permit Type:
N/A
Building Type:
N/A
Addition of guest room attached to (e) garage 390 sf
Valuation:
$83,604
Permit #:
B04-0692
Status:
final
Fee:
$3,033
Permit Type:
N/A
Building Type:
N/A
Repair roof/reroof
Valuation:
$0
Permit #:
B11-0081
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Repairs: r/r stucco; r/r framing; r/r tile, sub. & finish floors at 2 bathrooms- all "in-kind"
Valuation:
$3,688
Permit #:
RB9602956
Status:
Expired
Fee:
$214
Permit Type:
N/A
Building Type:
N/A
Kithen remodel w pe
Valuation:
$38,000
Permit #:
B02-001648
Status:
FINALED
Fee:
$1,255
Permit Type:
N/A
Building Type:
N/A
Tenant improvement. (walls/storage room/electrical)
Valuation:
$2,000
Permit #:
B0025256
Status:
ISSUED
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
Coster Construction License info
Verified License
| License # | 858796 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Coster Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 734505 |
| 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. If this is your business, please update your license status.
Check this license's status for Coster Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 513040 |
| 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. If this is your business, please update your license status.
Check this license's status for Coster Construction at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
92
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
35
Permits
- Building permit records show that Coster Construction has worked on 35 permitted projects.
Coster Construction Employees
FC
Fredrick Alvin Coster
Sole Owner
FJ
Fredrick Alvin Coster Jr
Sole Owner