Updated: May 04, 2026
Location and Projects
Address
PO BOX 2059 SEBASTOPOL, Sebastopol, CA, 95473
Use our bidding system to
request a quote
Cornerstone Roofing
Cornerstone Roofing, Sebastopol, Po Box 2059, Sebastopol, CA (Employees: Courtney Noel Smith, Gasperson, Robert T, and Lucas Christopher Smith) holds a Roofing 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 Cornerstone Roofing, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Cornerstone Roofing Contact Information
Phone Number: (707) 546-3547
Edit
Address: PO BOX 2059 SEBASTOPOL, Sebastopol, CA 95473
Edit
Do you work for this business? Unlock this free profile to update company info and see who's viewing your profile.
Cornerstone Roofing Sebastopol
Quality
111
96th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Cornerstone Roofing has a BuildZoom score of 111, which places them above 96% of 336,931 contractors in California.
Activity
|
62 projects
|
2025 |
|
50 projects
|
2024 |
|
36 projects
|
2023 |
Our building permit records indicate that Cornerstone Roofing has worked on at least
148.0 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
|
52 projects
|
Home Additions |
|
36 projects
|
Commercial Renovations |
|
147 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Cornerstone Roofing mostly works on
roofing project
and home addition
projects.
Pricing
|
1 project
|
< $5k |
|
29 projects
|
$5k-$20k |
|
36 projects
|
$20k-$50k |
|
7 projects
|
$50k-$100k |
|
1 project
|
$100k-$250k |
The typical size of their permits is approximately $22,000. 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.
Tear off 36 squares of built up roof. supply and install gaf mechanically fastened tpo roof system to all flat roofs using densdeck over polyiso insulation for class a fire rating. supply and install class a fire rated taylor metals 24ga standing seam roof system to pitched roofs
Valuation:
$70,441
Permit #:
B41821
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Tear off all existing roofing materials supply and install 26sq. of gaf hdz class a roof shingles over tiger paw synthetic underlayment supply ad install 25sq. of gaf dark bronze tpo over 1/4 densdeck all roof systems to be class a. self cert
Valuation:
N/A
Permit #:
BLD25-1066
Status:
final
Fee:
$544
Permit Type:
N/A
Building Type:
N/A
Tear off exiting low slope/flat roof material. install fully adhered densdeck over deck boards to bring roof to class a fire rating. install fully adhered tpo roof over densdeck. self cert
Valuation:
N/A
Permit #:
BLD25-0473
Status:
final
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 28 squares with a class a fire rated metal roof system using polystick xfr sa underlayment and a taylor metals standing seam roof system
Valuation:
$49,681
Permit #:
BLDR-2025-0334
Status:
complete
Fee:
$376
Permit Type:
N/A
Building Type:
N/A
Tear off 33 squares of comparable shingle and 22 squares of built up. reroof with class a fire rated roof system using gaf hdz roof system and tpo over flat roofs. self cert
Valuation:
N/A
Permit #:
BLD25-2871
Status:
final
Fee:
$541
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 46 squares with a class a fire rated roof system using gaf weatherwatch peel and stick underlayment and gaf hdz lifetime shingle. self cert
Valuation:
$30,497
Permit #:
B25-0754
Status:
final
Fee:
$727
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 38 squares with a class a fire rated roof system using certainteed presidential tl shingle and diamond deck underlayment. self cert
Valuation:
$35,284
Permit #:
B25-2080
Status:
final
Fee:
$320
Permit Type:
N/A
Building Type:
N/A
Tear off 41 squares and reroof with class a fire rated roof system using hoa required gaf timberline ns shingle and gaf weatherwatch sa underlayment. self cert
Valuation:
N/A
Permit #:
BLD25-1241
Status:
final
Fee:
$539
Permit Type:
N/A
Building Type:
N/A
Tear off rock and addition 1-1/2 polyiso insulation and 1/4 densdeck to bring roof to class a fire rating. install tpo mechanically fastened over densdeck and fully adhered at curbs. self cert
Valuation:
$33,248
Permit #:
B25-4613
Status:
final
Fee:
$323
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 31 squares with a class a fire rated roof system using gaf tiger paw underlayment and gaf hdz lifetime shingle. self cert
Valuation:
$22,199
Permit #:
B25-0446
Status:
final
Fee:
$318
Permit Type:
N/A
Building Type:
N/A
Sfd-tear off al existing comparable roof shingles and re roof with a class a gaf hdz comparable roof system tiger paw synthetic underlayment as well as gaf weather watch peal and stick underlayment on areas of lesser pitch. self cert 5000 sq.ft. of roofing to be replaced. self cert
Valuation:
N/A
Permit #:
BLD24-5534
Status:
final
Fee:
$540
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 19 squares with a class a fire rated roof system using gaf tiger paw underlayment and gaf hdz lifetime shingle. self cert
Valuation:
$13,849
Permit #:
B25-1525
Status:
final
Fee:
$317
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 29 squares with a class a fire rated roof system using gaf tiger paw underlayment and gaf hdz lifetime shingle. self cert
Valuation:
N/A
Permit #:
BLD25-2139
Status:
final
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 30 squares with a class a fire rated roof system using gaf uhdz shingle and tiger paw underlayment. self cert
Valuation:
$19,836
Permit #:
B25-1887
Status:
final
Fee:
$317
Permit Type:
N/A
Building Type:
N/A
Tear off and reroof 20 squares with a class a fire rated roof system using gaf tiger paw underlayment and gaf hdz lifetime shingle. self cert
Valuation:
N/A
Permit #:
BLD25-0914
Status:
final
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
Overlay of existing bur using class a mechanically fastened tpo roofing system with separator sheet to field. install class a fully adhered tpo roofing system to all walls and curbs
Valuation:
N/A
Permit #:
BLD22-5425
Status:
issued
Fee:
$527
Permit Type:
N/A
Building Type:
N/A
5250 hessel ave is the posted address but it appears to fall under the parcel in which the permit is applied tear off existing composition roofing and re roof with a class a gaf hdz rs comparable roof system 1500 sq ft. self cert
Valuation:
N/A
Permit #:
BLD24-6263
Status:
issued
Fee:
$537
Permit Type:
N/A
Building Type:
N/A
Tear off all existing roofing materials and re roof with a class a comparable shingle roof system and re roof existing flat roof with a class a 60mil tpo roof system self cert
Valuation:
$95,559
Permit #:
B40033
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Commercial reroof equipment bay with a tpo overlay using fr10 fire retardant separator sheet and 60 mil tpo mechanically fastened roof system on the field and a fully adhered tpo system on the walls for a total of 28 squares
Valuation:
N/A
Permit #:
BLD24-6297
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Residential re roof tear off all existing roofing materials install new gaf hdz comparable roof 2500sqft. self cert
Valuation:
$20,000
Permit #:
B25-1694
Status:
final
Fee:
$317
Permit Type:
N/A
Building Type:
N/A
Similar Contractors See more
128
BZ Score
$67.2K
Avg Project
-
Projects
128
BZ Score
$17.8K
Avg Project
-
Projects
129
BZ Score
$17.1K
Avg Project
-
Projects
Cornerstone Roofing Reviews
BuildZoom hasn't received any reviews for Cornerstone Roofing. Click here to be alerted when reviews are posted about them.
Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Cornerstone Roofing License info
Verified License
| License # | 909400 |
| Status | Active |
| State | California |
| Type | Roofing |
- BuildZoom verified this license was active as of February 2026.
Verify this license's status for Cornerstone Roofing at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 833934 |
| Status | Inactive |
| State | California |
| Type | Roofing |
- 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 Cornerstone Roofing 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 | This License Filed A Contractor's Bond With |
| Bond Value | $25,000 |
Insured
| Workers Comp Provider | Insurance Company Of The West |
409
Permits
- Building permit records show that Cornerstone Roofing has worked on 409 permitted projects.
Cornerstone Roofing Employees
CS
Courtney Noel Smith
Officer
GT
Gasperson, Robert T
LS
Lucas Christopher Smith
Rmo / Ceo / Pres
PW
Paul Michael Whyte
Officer
SW
Susan Elizabeth Whyte
Officer