Location and Projects
Address
P O BOX 112, Ferndale, CA, 95536
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Dci Builders (del Biaggio) Engineer
Residential, Commercial, Agricultural and Concrete Contractor in Humboldt County, California
DCI Builders has earned a reputation as a premier construction company in Humboldt County. Our goals are consistent performance, high quality workmanship, meeting our customers’ needs, and being a knowledgeable resource for all of our customers. We are continually grateful to serve and be a part of our community.
From BuildZoom: Dci Builders (del Biaggio), Ferndale, Po Box 112, Ferndale, CA (Owned by: Dennis Del Biaggio) holds a General Building, Concrete, General Engineering license and 1 other license according to the California license board.
Their BuildZoom score of 111 ranks in the top 4% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Dci Builders (del Biaggio), we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Dci Builders (del Biaggio) Services
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Dci Builders (del Biaggio) Contact Information
Phone Number: (707) 786-5450
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Address: P O BOX 112, Ferndale, CA 95536
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Dci Builders (del Biaggio) Ferndale
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Dci Builders (del Biaggio) has a BuildZoom score of 111, which places them above 96% of 336,931 contractors in California.
Activity
|
10 projects
|
2025 |
|
9 projects
|
2024 |
|
11 projects
|
2023 |
Our building permit records indicate that Dci Builders (del Biaggio) has worked on at least
30.0 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.
Experience
|
6 projects
|
Home Additions |
Analyzing permits over the last 4 years shows that Dci Builders (del Biaggio) mostly works on
home addition
projects.
Pricing
|
4 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
|
3 projects
|
$100k-$250k |
|
4 projects
|
$250k-$500k |
|
3 projects
|
$500k-$1mil |
|
1 project
|
$1mil+ |
The typical size of their permits is approximately $190,250. This graph shows the distribution of these job values.
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 Dci Builders (del Biaggio)
This is a sample of this contractor's permits. Click here to access their complete permit history.
Addition (1197 sf) & complete interior remodel to convert ex office building into medical office includes detached monument sign (~9 sf) retaining wall (202 lf) trash enclosure (110 sf) eng grading (1074 cy cut/fill) to create 6 new parking stalls (separate permit for electrical svc upgrade & ev chargers) - for north pacific dermatology
Valuation:
$781,961
Permit #:
BLD-2024-59673
Status:
final
Fee:
$11,628
Permit Type:
Commercial
Building Type:
N/A
Construct two-story commercial building (9640 sf) includes mezzanine (2160 sf) offices (1000 sf) lit exterior signage 2 bedroom caretaker's unit (1000 sf) on 2nd floor aprox 6464 cy engineered cut/fill for the project
Valuation:
$1,142,965
Permit #:
BLD-2022-57384
Status:
plancheck
Fee:
$4,500
Permit Type:
Commercial
Building Type:
N/A
Primary residential electric services up to 200 amp
2025-07-18
Electrical service upgrade and relocation to an existing single-family residence (200 amps) and detached barn (200 amps) on the parcel only (refer 2024-59800 remodel/addition permit) 2 services on parcel
Valuation:
N/A
Permit #:
BLD-2025-62059
Status:
final
Fee:
$288
Permit Type:
N/A
Building Type:
N/A
Install new swimming pool (approx 13 163 gallons) with unconditioned 974 sf pool enclosure with new attached 576 sf pool house containing a spa a full bathroom and mechanical room. project includes new patio at existing house with walkway and steps leading to pool's new concrete perimeter deck
Valuation:
N/A
Permit #:
BLD-2024-61176
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Interior remodel to convert ex medical office into dental office includes new operatory and exam rooms minor alterations to exterior facade patio enclosed by fence new 8 gate for access to north utility yard (no footprint change)
Valuation:
$192,000
Permit #:
BLD-2023-57688
Status:
issued
Fee:
$5,514
Permit Type:
Commercial
Building Type:
N/A
Demolish 4 ex structures (310 sf utility shed 600 sf shed 2130 sf barn & 5700 sf hay barn) - hay barn was damaged in recent earthquakes and subsequent wind damage - future pole barn to be permitted separately
Valuation:
N/A
Permit #:
BLD-2025-62495
Status:
issued
Fee:
$991
Permit Type:
Commercial
Building Type:
N/A
Construct commercial shop includes storage area and office spaces on 2nd floor new septic remedy grading vio ce20-0582
Valuation:
$665,415
Permit #:
BLD-2022-55819
Status:
final
Fee:
$20,335
Permit Type:
Commercial
Building Type:
N/A
Aob interior remodel and addition to existing 2 031 sf partial 2-story 4 bedroom 2 bathroom single-family residence. demolishing existing 138 sf craft room and adding new 367 sf addition. relocating kitchen and first-floor bathroom remodel to second-floor bedrooms. no change in total number of bedrooms. also replacing existing deck with new 413 sf deck
Valuation:
$151,161
Permit #:
BLD-2024-59800
Status:
issued
Fee:
$3,547
Permit Type:
Residential
Building Type:
N/A
Construct a new 2087 sf single family residence with 356 sf attached garage 128 sf covered porch 408 sf uncovered deck a retaining wall and roof-mount photovoltaic system
Valuation:
$377,299
Permit #:
BLD-2023-58478
Status:
final
Fee:
$10,499
Permit Type:
Residential
Building Type:
N/A
Interior remodel for retail space of ex cheese shop: new ada entry relocate electrical panel and wall heater convert kitchen & storage into wash room & prep area new roof over aprox 3000 sf of ex structure (replaces app #55419) - for rumiano cheese
Valuation:
N/A
Permit #:
BLD-2022-57122
Status:
plancheck
Fee:
$542
Permit Type:
Commercial
Building Type:
N/A
Const aob single-family residence (2 bedrms) w/detached shop (1200 sf) engineered grading (aprox 8600 cy cut/fill) for new driveway & building sites
Valuation:
$398,181
Permit #:
BLD-2022-56136
Status:
final
Fee:
$10,066
Permit Type:
Residential
Building Type:
N/A
Remodel and addition (436 sf) to shop and cafe ada improvements to parking and path of travel includes demolish of single family residence and det stg building on apn 309-124-008 for parking - (phases 1a & 1b) for rumiano cheese co
Valuation:
$114,163
Permit #:
BLD-2021-55419
Status:
canceled
Fee:
$624
Permit Type:
Commercial
Building Type:
N/A
Rebuild 9600 sf commercial building per plan
Valuation:
$676,943
Permit #:
B20-0391
Status:
issued
Fee:
$13,731
Permit Type:
N/A
Building Type:
N/A
Const addition (875 sf) to ex single family residence full interior remodel (3 bedroom when complete) front & rear covered entries (211 sf) 1-car detached garage (384 sf) connected to residence by covered walk (160 sf) - see #59137 for det shop
Valuation:
$310,735
Permit #:
BLD-2023-58158
Status:
final
Fee:
$10,535
Permit Type:
Residential
Building Type:
N/A
Replace rotten deck and extend deck addition 8x8 addition to kitchen and 4x10 addition to screened porch reroof entire existing residence replace water heater rewire entire existing residence
Valuation:
$34,642
Permit #:
BLD-2022-56943
Status:
final
Fee:
$1,898
Permit Type:
Residential
Building Type:
N/A
Install one-hour firewalls to create property lines within 6 existing garage units (addressed as 765/767 761/763 757/759 749/751 741/743 williams st and 812/814 seventh st)
Valuation:
$36,000
Permit #:
BLD-2023-58790
Status:
issued
Fee:
$1,316
Permit Type:
Residential
Building Type:
N/A
Conversion of 2nd floor of scotia hospital building into 7 living units (all interior no footprint change) upgrade electrical service to 1600 amps lead and asbestos abatement throughout phases 2-4 will be permitted separately
Valuation:
$260,382
Permit #:
BLD-2023-58510
Status:
issued
Fee:
$11,700
Permit Type:
Multi-family
Building Type:
N/A
Construct ag exempt barn on parcel with electrical
Valuation:
$182,738
Permit #:
BLD-2020-53005
Status:
issued
Fee:
$1,128
Permit Type:
Commercial
Building Type:
N/A
Demolish of interior finishes and non-load bearing walls for dmv tenant improvements (see #54270 for proposed remodel) - no structural repair or replacment authorized with this permit
Valuation:
N/A
Permit #:
BLD-2021-54515
Status:
final
Fee:
$136
Permit Type:
Commercial
Building Type:
N/A
Eng grading (~1170 cy cut/fill) for new driveway and building site for future development
Valuation:
N/A
Permit #:
BLD-2025-62589
Status:
issued
Fee:
$1,170
Permit Type:
Residential
Building Type:
N/A
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Dci Builders (del Biaggio) License info
Verified License
| License # | 638887 |
| Status | Active |
| State | California |
| Type | General Building, Concrete, General Engineering |
| Business Type | Corporation |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for Dci Builders (del Biaggio) at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 502028 |
| Status | Inactive |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- 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 Dci Builders (del Biaggio) at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
111
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
134
Permits
- Building permit records show that Dci Builders (del Biaggio) has worked on 134 permitted projects.
Dci Builders (del Biaggio) Employees
DB
Dennis Bruce Del Biaggio
Sole Owner
DB
Dennis Del Biaggio
Owner
SB
Susan Jean Del Biaggio
Officer