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Updated: Jun 06, 2026
Location and Projects
Address
19867 CAJON BLVD, San Bernardino, CA, 92407
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Warren Duncan Contracting Engineer
Warren Duncan Contracting, 19867 Cajon Blvd, San Bernardino, CA (Employees: Warren Stuart Duncan and Warren Stuart Duncan Jr) holds a Building Moving, Demolition, Service Station Equipment And Maintenance, General Engineering license and 1 other license according to the California license board.
Their BuildZoom score of 100 ranks in the top 13% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Warren Duncan Contracting, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Warren Duncan Contracting Services
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Warren Duncan Contracting Contact Information
Phone Number: (909) 880-8501
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Address: 19867 CAJON BLVD, San Bernardino, CA 92407
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Warren Duncan Contracting San Bernardino
Quality
100
87th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Warren Duncan Contracting has a BuildZoom score of 100, which places them above 87% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
|
1 project
|
2024 |
|
1 project
|
2023 |
Our building permit records indicate that Warren Duncan Contracting has worked on at least
3.0 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 |
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 Warren Duncan Contracting
This is a sample of this contractor's permits. Click here to access their complete permit history.
Demolition (bde) - demolish - demolition permit
2024-11-25
Demolish mh (bmr043852) and utilities for mh demolish detached garage (bxx051285) and cwp shed for code enforcement case cvco220609
Valuation:
N/A
Permit #:
BDE2400084
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish house on property
Valuation:
$11,000
Permit #:
BP-2023-09326
Status:
complete
Fee:
N/A
Permit Type:
Single family res...
Building Type:
N/A
Demolition of payless shoes 4, 000 sq ft and taco shop 924 sq ft for 1069 w. highland
Valuation:
$50,000
Permit #:
D2000046
Status:
final
Fee:
$3,755
Permit Type:
N/A
Building Type:
N/A
Demolish of warehouse and tin shed
Valuation:
$20,000
Permit #:
B2210-059
Status:
final
Fee:
$432
Permit Type:
Commercial
Building Type:
N/A
Demolition (bde) - demolish - demolition permit
2020-05-20
Removal of utilities from mobile home demolish of mobile home and demolish of a garage
Valuation:
N/A
Permit #:
BDE2000037
Status:
final
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish single family dwelling 975 sq ft
Valuation:
$10,000
Permit #:
D2100016
Status:
final
Fee:
$2,035
Permit Type:
N/A
Building Type:
N/A
Demolish single family dwelling 975 sq ft
Valuation:
$10,000
Permit #:
D2100015
Status:
final
Fee:
$2,036
Permit Type:
N/A
Building Type:
N/A
Demolish existing dwelling building
Valuation:
$9,000
Permit #:
D2100040
Status:
final
Fee:
$772
Permit Type:
N/A
Building Type:
N/A
Erosion control plan for the demolish of the 1 900 sf commercial building in front of single family residence. single family residence will not be demoed
Valuation:
N/A
Permit #:
THR16-108
Status:
approved
Fee:
$77
Permit Type:
N/A
Building Type:
N/A
Demolition: 1 478 sq.ft. three bedroom - two bathroom single family dwelling with sewer cap
Valuation:
$18,000
Permit #:
BLD2015-05517
Status:
expired
Fee:
N/A
Permit Type:
Demolition
Building Type:
N/A
Demolish of the 1, 900 sf commercial building in front of single family residence. single family residence will not be demoed
Valuation:
$19,000
Permit #:
D1600019
Status:
final
Fee:
$1,560
Permit Type:
N/A
Building Type:
N/A
Demolish of carports located on the eastside (n sierra way) of property for rebuild
Valuation:
$15,000
Permit #:
D1600001
Status:
ISSUED
Fee:
$240
Permit Type:
N/A
Building Type:
N/A
Commercial demolition of an addition located at the rear of the building
Valuation:
$5,000
Permit #:
B20-000-262
Status:
final
Fee:
$418
Permit Type:
Demolition
Building Type:
N/A
Demolition of multy tenant center units 180 178 111 123 total of 8610 sqft and existing parking structure of 34, 000 sqft. and parking lot at grade
Valuation:
$64,500
Permit #:
D1500024
Status:
final
Fee:
$8,980
Permit Type:
N/A
Building Type:
N/A
Demolition of burned down single family home
Valuation:
$6,000
Permit #:
B00-032-512
Status:
final
Fee:
$339
Permit Type:
N/A
Building Type:
N/A
Demolish of a 9, 188 sf commercial building
Valuation:
$56,000
Permit #:
D1500005
Status:
final
Fee:
$3,179
Permit Type:
N/A
Building Type:
N/A
Demolition: 748 sq. ft. of single family dwelling ( 2 bedrooms and 1 bath) with sewer cap
Valuation:
$7,000
Permit #:
BLD2014-01975
Status:
final
Fee:
N/A
Permit Type:
Demolition
Building Type:
N/A
Demolition: 800 sq. ft. single family dwelling (1 bedrooms) with sewer cap
Valuation:
$7,000
Permit #:
BLD2014-00159
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolition: 1, 200 sq. ft. single family dwelling (2 bedroom) with sewer cap
Valuation:
$7,000
Permit #:
BLD2014-00160
Status:
Issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Demolish of a single family residence
Valuation:
$86,319
Permit #:
D1300024
Status:
final
Fee:
$1,069
Permit Type:
N/A
Building Type:
N/A
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Warren Duncan Contracting Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Warren Duncan Contracting License info
Verified License
| License # | 553327 |
| Status | Active |
| State | California |
| Type | Building Moving, Demolition, Service Station Equipment And Maintenance, General Engineering |
| Business Type | Sole Ownership |
- BuildZoom verified this license was active as of December 2025.
Verify this license's status for Warren Duncan Contracting at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 251593 |
| Status | Inactive |
| State | California |
| Type | Building Moving, Demolition, Service Station Equipment And Maintenance |
| 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 Warren Duncan Contracting at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
100
BuildZoom Score
Bonded
| Bonded Agent | American Contractors Indemnity Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
183
Permits
- Building permit records show that Warren Duncan Contracting has worked on 183 permitted projects.
Warren Duncan Contracting Employees
WD
Warren Stuart Duncan
Sole Owner
WJ
Warren Stuart Duncan Jr
Sole Owner