Updated: Jul 04, 2026
Location and Projects
Address
3077 FLANNERY RD, San Pablo, CA, 94806
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CASTELLANOS CONSTRUCTION SERVICES
Serving San Pablo, California and the surrounding areas, Castellanos Construction Services specializes in residential and commercial construction projects. With 9 years of experience, the firm handles a variety of project types, from remodels and renovations to new construction. Castellanos Construction Services works with homeowners and property managers to complete interior and exterior improvements, including kitchen and bathroom remodels, structural repairs, and general building upgrades. The company is experienced in coordinating all phases of construction, ensuring projects are completed according to client specifications and local building codes. Castellanos Construction Services focuses on clear communication with clients throughout the process and adapts services to fit each property’s unique requirements.
CASTELLANOS CONSTRUCTION SERVICES Services
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CASTELLANOS CONSTRUCTION SERVICES Contact Information
Phone Number: (510) 224-0390
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Address: 3077 FLANNERY RD, San Pablo, CA 94806
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CASTELLANOS CONSTRUCTION SERVICES San Pablo
Quality
99
85th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
CASTELLANOS CONSTRUCTION SERVICES has a BuildZoom score of 99, which places them above 85% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
2 projects
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that CASTELLANOS CONSTRUCTION SERVICES has worked on at least
4.0 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.
Pricing
|
1 project
|
$5k-$20k |
|
1 project
|
$100k-$250k |
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 CASTELLANOS CONSTRUCTION SERVICES
This is a sample of this contractor's permits. Click here to access their complete permit history.
Fire damage repair like for like;
Valuation:
$200,000
Permit #:
BP23-0142
Status:
final
Fee:
$7,391
Permit Type:
Fire damage repair
Building Type:
N/A
New detached adu 374 sq ft with new 100amp service stairs and deck 1.81kw photovoltaic system required per title 24 report 8-25-22 rev submitted; change to kitchen layout new egress front door & window. struc app m wandiga
Valuation:
$65,000
Permit #:
BIR22-004831
Status:
final
Fee:
$4,521
Permit Type:
N/A
Building Type:
N/A
Fire place surround addition outlet
Valuation:
$5,800
Permit #:
BR25-118
Status:
final
Fee:
$386
Permit Type:
Construction only
Building Type:
N/A
Bathroom remodel like for like shower pan sink adding drop in tub one toilet
Valuation:
N/A
Permit #:
PP20240425529
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Remodel bathroom replace lights new outlets and fixures
Valuation:
N/A
Permit #:
E202404253981
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Convert a rear detached one-car garage to a 224-sf secondary unit; conversion includes the addition of a dormer. new unit to be addressed 5911 ayala ave
Valuation:
$40,000
Permit #:
RB1702859
Status:
final
Fee:
$4,238
Permit Type:
N/A
Building Type:
N/A
Electrical - convert a rear detached one-car garage to a 224-sf secondary unit; conversion includes the addition of a dormer. new unit to be addressed 5911 ayala ave
Valuation:
N/A
Permit #:
RE1702741
Status:
final
Fee:
$386
Permit Type:
N/A
Building Type:
N/A
Plumbing - convert a rear detached one-car garage to a 224-sf secondary unit; conversion includes the addition of a dormer. new unit to be addressed 5911 ayala ave
Valuation:
N/A
Permit #:
RP1702153
Status:
final
Fee:
$310
Permit Type:
N/A
Building Type:
N/A
Relocate 100 amp sub panel to inside the garage from outside. addition new sheetrock around the new location
Valuation:
N/A
Permit #:
BIE19-004005
Status:
final
Fee:
$132
Permit Type:
N/A
Building Type:
N/A
Building permit (including solar/pv ev charging or energy storage system)
2023-02-16
No Description Available
Valuation:
N/A
Permit #:
ESR-2023-00405
Status:
triage
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bathroom remodel - remove/replace - toilet vanity tile shower/pan new plumbing fixtures fan lights
Valuation:
N/A
Permit #:
BIAL19-000388
Status:
final
Fee:
$745
Permit Type:
N/A
Building Type:
N/A
Hall bathroom remodel - remove and replace - tub with tile surround toilet double vanity fan and vanity lights. addition led can lights
Valuation:
$10,000
Permit #:
BIAL18-011139
Status:
final
Fee:
$745
Permit Type:
N/A
Building Type:
N/A
Balcony certification
Valuation:
N/A
Permit #:
BP21-0051
Status:
applied
Fee:
$138
Permit Type:
N/A
Building Type:
N/A
Structural & electric repairs to building damaged by vehicle
Valuation:
N/A
Permit #:
B19-0706
Status:
final
Fee:
N/A
Permit Type:
Alteration
Building Type:
N/A
Addition of 498sqft & remodel of 395sqft
Valuation:
$80,000
Permit #:
BP18-0254
Status:
final
Fee:
$7,821
Permit Type:
Remodel/addition
Building Type:
N/A
Restaurant tenant improvement for deli (take out only) electrical plumbing fixtures and ada compliance
Valuation:
$26,000
Permit #:
B2018-04786
Status:
canceled
Fee:
$4,355
Permit Type:
N/A
Building Type:
N/A
10/10/18 - electrical and plumbing permits issued tenant improvement. for kombucha tea house
Valuation:
$40,000
Permit #:
B2018-01895
Status:
final
Fee:
$2,967
Permit Type:
N/A
Building Type:
N/A
(rbc) - building residential combo alteration- 1 & 2 unit residential (building)
2021-07-21
Reconfigure non-load bearing walls at rear bedroom & bathroom remodel kitchen for single family dwelling. includes related electrical & plumbing work including 200 amp service upgrade addition dishwasher move gas line. no exterior work
Valuation:
$30,000
Permit #:
RBC1903287
Status:
expired
Fee:
$1,424
Permit Type:
N/A
Building Type:
N/A
Interior remodel involving two new bathrooms and alteration of two bathroom windows. create master bathroom from existing bathroom and closets and new 2nd bathroom from existing closet space per plans
Valuation:
$10,000
Permit #:
RB1602538
Status:
final
Fee:
$796
Permit Type:
N/A
Building Type:
N/A
Plumbing to remodel involving two new bathrooms; create master bathroom from existing bathroom and closets and new 2nd bathroom from existing closet space per plans. install replacement water heater
Valuation:
N/A
Permit #:
RP1601521
Status:
final
Fee:
$399
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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Avg Project
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Projects
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BZ Score
$30K
Avg Project
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Projects
188
BZ Score
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Avg Project
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Projects
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CASTELLANOS CONSTRUCTION SERVICES License info
Verified License
| License # | 998283 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for CASTELLANOS CONSTRUCTION SERVICES at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
99
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
19
Permits
- Building permit records show that CASTELLANOS CONSTRUCTION SERVICES has worked on 19 permitted projects.
CASTELLANOS CONSTRUCTION SERVICES Employees
DC
David Castellanos
Officer
DC
David Castellanos
Officer
JC
Josue Castellanos
Sole Owner
JC
Josue Castellanos
Owner
JP
Juan Carlos Padilla
Ceo / President
JG
Juan Carlos Padilla Gutierrez
Ceo / President