Updated: Feb 08, 2026
Location and Projects
Address
34 SIRAH, American Canyon, CA, 94503
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Cowan Roofing
Cowan Roofing, 34 Sirah, American Canyon, CA (Employees: James Lloyd Cowan Jr and James Lloyd Cowan Sr) holds a Roofing license according to the California license board.
Their BuildZoom score of 104 ranks in the top 9% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Cowan Roofing, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Cowan Roofing Contact Information
Phone Number: (707) 333-4660
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Address: 34 SIRAH, American Canyon, CA 94503
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Cowan Roofing American Canyon
Quality
104
91st percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cowan Roofing has a BuildZoom score of 104, which places them above 91% of 336,931 contractors in California.
Activity
|
1 project
|
2026 |
|
5 projects
|
2025 |
|
2 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Cowan Roofing has worked on at least
11.0 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
|
11 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Cowan Roofing mostly works on
roofing project
projects.
Pricing
|
5 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
The typical size of their permits is approximately $19,050. 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.
This is a sample of this contractor's permits. Click here to access their complete permit history.
Complete reroof - existing type: composition/asphalt - proposed replacement: tear off; reroof with “class a” composition - structure type: residential dwelling
Valuation:
$12,000
Permit #:
BR25-00055-RRF
Status:
final
Fee:
$568
Permit Type:
N/A
Building Type:
N/A
Reroof *20 sq* *cool roof or cool roof exception is required at final* m.b
Valuation:
$21,500
Permit #:
BIRR24-002484
Status:
approved
Fee:
$436
Permit Type:
N/A
Building Type:
N/A
Complete reroof - existing type: composition/asphalt - proposed replacement: tear off; reroof with “class a” composition - structure type: residential dwelling
Valuation:
$8,000
Permit #:
BR24-01834-RRF
Status:
final
Fee:
$483
Permit Type:
N/A
Building Type:
N/A
Remove existing asphalt roof shingles and replace with class a shingles
Valuation:
N/A
Permit #:
BLD25-2831
Status:
final
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
Complete re-roof
Valuation:
N/A
Permit #:
BLD25-1941
Status:
issued
Fee:
$540
Permit Type:
N/A
Building Type:
N/A
25 squares comparable shingles
Valuation:
N/A
Permit #:
BD2412-002
Status:
final
Fee:
$478
Permit Type:
Re-roof
Building Type:
N/A
Reroof: remove and replace composition shingles - wui
Valuation:
$18,000
Permit #:
B2021-2695
Status:
expired
Fee:
$365
Permit Type:
Residential
Building Type:
N/A
Tear off comparable and re-roof with metal
Valuation:
$30,000
Permit #:
BR23-01391-RRF
Status:
expired
Fee:
$787
Permit Type:
N/A
Building Type:
N/A
Re-roofing
Valuation:
$17,500
Permit #:
BLD-22-187
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential: limited review - electrical mechanical plumbing roof solar etc
2023-04-21
Like for like remove and replace comparable shingles sra moderate
Valuation:
$19,500
Permit #:
BLD23-01734
Status:
complete
Fee:
$224
Permit Type:
Alteration
Building Type:
N/A
Code violation - re-roof tear off detached garage - comparable shingle & tpo
Valuation:
$3,500
Permit #:
BR22-00379-RRF
Status:
approved
Fee:
$1,541
Permit Type:
N/A
Building Type:
N/A
Complete reroof - existing type: composition/asphalt - proposed replacement: tear off; reroof with “class a” composition - structure type: residential dwelling
Valuation:
$25,000
Permit #:
BR26-00018-RRF
Status:
issued
Fee:
$885
Permit Type:
N/A
Building Type:
N/A
E-permit: tear off - yes resheet - no 1 layer(s) 15 squares of 30yr laminated dimensional composition. crrc: 0668-0119. removal of existing roofing materials disposal of removed materials to disposal facility installation of metal pre-painted valley's to direct water flow away from critical areas provide and install synthetic underlayment on low pitched areas of roof install thermopla... see more
Valuation:
$18,600
Permit #:
RES-2523740
Status:
issued
Fee:
$247
Permit Type:
N/A
Building Type:
Single family
Code violation - 2 story garage - re-roof 400 sqft standing seam metal class a - due to tree damage
Valuation:
$8,000
Permit #:
BR23-00431-RRF
Status:
expired
Fee:
$2,044
Permit Type:
N/A
Building Type:
N/A
Re-roof tear off main dwelling - comparable shingle & tpo
Valuation:
$5,000
Permit #:
BR22-00377-RRF
Status:
expired
Fee:
$445
Permit Type:
N/A
Building Type:
N/A
Remove and replace composition shingle roof **cool roof or cool roof exception required**
Valuation:
$13,600
Permit #:
BIRR22-000786
Status:
canceled
Fee:
$436
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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BZ Score
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Projects
Cowan Roofing Reviews
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Verified License
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Cowan Roofing License info
Verified License
| License # | 1075580 |
| Status | Active |
| State | California |
| Type | Roofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Cowan Roofing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
104
BuildZoom Score
Bonded
| Bonded Agent | This License Filed A Contractor's Bond With |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | State Compensation Insurance Fund |
15
Permits
- Building permit records show that Cowan Roofing has worked on 15 permitted projects.
Cowan Roofing Employees
JJ
James Lloyd Cowan Jr
Officer
JS
James Lloyd Cowan Sr
Rmo / Ceo / Pres