Updated: Jul 12, 2026
Location and Projects
Address
30063 Palomares Rd, Castro Valley, CA, 94552
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J F K Builders Construction
J F K Builders, 30063 Palomares Rd, Castro Valley, CA (Owned by: John Fitzgerald Kathain) holds a Warm Air Heating, Ventilating And Air Conditioning, General Building license according to the California license board.
Their BuildZoom score of 95 ranks in the top 22% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring J F K Builders, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
J F K Builders Services
Start a project today:
Custom Home Build
New Home Construction
Other Residential New Const...
Multi-Room Remodel
Kitchen Remodel
Bathroom Remodel
Basement Remodel
Other Residential Remodel
Hardwood Flooring
Carpets
Laminate Flooring
Other Flooring
Framing
Drywall
Interior Plaster
Garage Construction
Gutters and Flashing
Patios
Pole Barn
ADU
Small Multi-Family New Cons...
Small Multi-Family Remodel ...
Whole Home Remodel
Modular Home Construction
Pool House
Sunrooms and Greenhouses
Other Secondary Structure N...
Addition
Vertical Addition
Horizontal Addition
Vertical and Horizontal Add...
Attic Remodel
Single Room Remodel
Cosmetic Remodel
J F K Builders Contact Information
Phone Number: (510) 377-1856
Address: 30063 Palomares Rd, Castro Valley, CA 94552
This is a sample of this contractor's permits. Click here to access their complete permit history.
Remove sub panel change closet to pantry r/r meter 200 amp circuits 6- 20 amp new hvac duct per cbc inspector will field inspect
Valuation:
$2,150
Permit #:
BLD2012-01165
Status:
final
Fee:
$371
Permit Type:
N/A
Building Type:
N/A
Replace furnace 80% afue and air conditioning 13 seer
Valuation:
$2,500
Permit #:
BP11001697
Status:
canceled
Fee:
$262
Permit Type:
N/A
Building Type:
N/A
Remove and replace 3 pieces 2x10 fascia and 2 pieces of 4x8' plywood. paint.
Valuation:
$750
Permit #:
B0304994
Status:
final
Fee:
$106
Permit Type:
N/A
Building Type:
N/A
196 sqft deck repair
Valuation:
$4,000
Permit #:
BD12-0506
Status:
final
Fee:
$570
Permit Type:
Repair
Building Type:
N/A
Adition
Valuation:
$1,300
Permit #:
80 009 BP 072
Status:
expired
Fee:
$205
Permit Type:
No change in units
Building Type:
N/A
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J F K Builders License info
Verified License
| License # | 744983 |
| Status | Active |
| State | California |
| Type | Warm Air Heating, Ventilating And Air Conditioning, General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for J F K Builders at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
95
BuildZoom Score
Bonded
| Bonded Agent | Hudson Insurance Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Clear Spring Property & Casualty Company |
J F K Builders Employees
JK
John Fitzgerald Kathain
Owner