Updated: Feb 18, 2026
Location and Projects
Address
19700 SHAFER RANCH RD, Willits, CA, 95490
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Duncan & Sons Construction Inc
Duncan & Sons Construction Inc, 19700 Shafer Ranch Rd, Willits, CA (Employee: Charles Kevin Matthe Duncan Sr) holds a General Building license according to the California license board.
Their BuildZoom score of 94 ranks in the top 24% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Duncan & Sons Construction Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Duncan & Sons Construction Inc Services
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Duncan & Sons Construction Inc Contact Information
Phone Number: (707) 354-0699
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Address: 19700 SHAFER RANCH RD, Willits, CA 95490
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Duncan & Sons Construction Inc Willits
Quality
94
76th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Duncan & Sons Construction Inc has a BuildZoom score of 94, which places them above 76% of 336,931 contractors in California.
Activity
|
1 project
|
2025 |
Our building permit records indicate that Duncan & Sons Construction Inc has worked on at least
1.0 project over the past year.
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 |
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 Duncan & Sons Construction Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Partial removel interior fire damage (remodel bp_2025-0417)
Valuation:
$3,500
Permit #:
BU_2025-0438
Status:
final
Fee:
$460
Permit Type:
Repair/replace
Building Type:
N/A
Rebuild due to fire damage
Valuation:
$100
Permit #:
BP_2025-0417
Status:
admin review
Fee:
$462
Permit Type:
Remodel
Building Type:
N/A
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Duncan & Sons Construction Inc Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Duncan & Sons Construction Inc License info
Verified License
| License # | 1107507 |
| Status | Active |
| State | California |
| Type | General Building |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Duncan & Sons Construction Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Duncan & Sons Construction Inc Employees
CS
Charles Kevin Matthe Duncan Sr
Rmo / Ceo / Pres