Updated: May 15, 2026
Location and Projects
Address
PO BOX 1679, Santa Rosa, CA, 95402
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Alton and Company Inc Photos
Alton and Company Roofer
Roofing Contractor in the North Bay since 1995
From BuildZoom: Alton and Company Inc, Santa, Po Box 1679, Santa Rosa, CA (Owned by: Paul Sharp) holds a Roofing license and 2 other licenses according to the California license board.
Their BuildZoom score of 116 ranks in the top 2% of 336,931 California licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Alton and Company Inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Alton and Company Inc Contact Information
Phone Number: (707) 576-1875
Address: PO BOX 1679, Santa Rosa, CA 95402
Alton and Company Inc Santa Rosa
Quality
116
98th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Alton and Company Inc has a BuildZoom score of 116, which places them above 98% of 336,931 contractors in California.
Activity
|
24 projects
|
2025 |
|
25 projects
|
2024 |
|
26 projects
|
2023 |
Our building permit records indicate that Alton and Company Inc has worked on at least
75.0 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
|
39 projects
|
Home Additions |
|
65 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Alton and Company Inc mostly works on
roofing project
and home addition
projects.
Pricing
|
2 projects
|
< $5k |
|
8 projects
|
$5k-$20k |
|
13 projects
|
$20k-$50k |
|
10 projects
|
$50k-$100k |
|
10 projects
|
$100k-$250k |
|
3 projects
|
$250k-$500k |
The typical size of their permits is approximately $43,200. 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 Alton and Company Inc
This is a sample of this contractor's permits. Click here to access their complete permit history.
Install new 1/4 fire protection board and cover board insulation. mechanically attach a 60mil tpo membrane and hot air weld all seams. roof application per manufacturers recommendations. roof system achieves class a fire rating from the underwriter's laboratory
Valuation:
$485,600
Permit #:
B23-5387
Status:
issued
Fee:
$3,520
Permit Type:
N/A
Building Type:
N/A
Install new 1/4 fire protection board and cover board insulation. mechanically attach a 60mil tpo membrane and hot air weld all seams. roof application per manufacturers recommendations. roof system achieves class a fire rating from the underwriter's laboratory
Valuation:
$431,800
Permit #:
B23-5386
Status:
issued
Fee:
$3,609
Permit Type:
N/A
Building Type:
N/A
Winery building partial re-roof remove existing metal roof panels and install new class a fire rated standing seam metal roof panels to match adjacent slope. at east slope remove and replace in kind new class a tpo membrane over fire protection board
Valuation:
$111,500
Permit #:
BC24-01327-RRF
Status:
final
Fee:
$2,566
Permit Type:
N/A
Building Type:
N/A
Over existing single layer of built up roofing install r10 rigid insulation and a white 60mil tpo roof membrane with class a fire rating meeting cool roof requirements. - approve jandon b
Valuation:
$222,800
Permit #:
B24-4718
Status:
issued
Fee:
$788
Permit Type:
N/A
Building Type:
N/A
Re-roof. tear off existing and install 1/4 fire protection board. mechanically attach new 60 mil tpo roof membrane and hot air weld all seams. roof application as per manufacturers recommendations. roof system achieves class a fire protection rating by ul
Valuation:
$116,000
Permit #:
B23-0001
Status:
issued
Fee:
$811
Permit Type:
N/A
Building Type:
N/A
Re-roof. all class a rating. 12 400sf roof area. flat portion of roof: overlay (over 1 existing layer) flat roof system with new 60mil tpo roof system. pitched portions of roof: remove and dispose of existing comparable. shingle roof system. install new comparable shingles over synthetic underlayment. material like-for-like
Valuation:
$185,300
Permit #:
B23-6590
Status:
issued
Fee:
$1,097
Permit Type:
N/A
Building Type:
N/A
Reroof - overlay. install new 60 mil tpo roof membrane over rigid insulation coverboard per energy code and heat weld all seams. not visible from street; like for like color and material. 125 sqs/12, 500 sf
Valuation:
$111,000
Permit #:
B24-1953
Status:
final
Fee:
$1,038
Permit Type:
N/A
Building Type:
N/A
Remove and dispose of existing low sloped and steep sloped roofing. install new class a fire rated steep slope and low sloped roofing meeting cool roof requirements
Valuation:
$84,700
Permit #:
B25-5711
Status:
issued
Fee:
$754
Permit Type:
N/A
Building Type:
N/A
Over existing single layer of class a built-up roof install a white 60 mil tpo membrane meeting cool roof requirements including new r10 rigid insulation per 2022 energy code. not visible from ground due to parapet wall
Valuation:
$187,000
Permit #:
B23-5897
Status:
issued
Fee:
$1,955
Permit Type:
N/A
Building Type:
N/A
Roof replacement - alton rental - 2421 parkcreek dr remove existing comparable shingle roofing and install new class a comparable shingle roofing
Valuation:
$14,400
Permit #:
B25-3091
Status:
final
Fee:
$317
Permit Type:
N/A
Building Type:
N/A
Roof overlay - install new pvc roof membrane over existing single layer of roofing material. material to be class a. 7500 sf
Valuation:
$140,800
Permit #:
B24-6833
Status:
issued
Fee:
$762
Permit Type:
N/A
Building Type:
N/A
Commercial re-roof overlay over one existing layer. install new tpo membrane roof and heat weld all seams over 2 rigid insulation cover board. class a fire rating
Valuation:
$160,550
Permit #:
B24-3274
Status:
issued
Fee:
$1,869
Permit Type:
N/A
Building Type:
N/A
Re-roof - gilles/pink residence - 1811 shelley dr overlay existing class a fire rated built-up roof with new 60mil tpo roof membrane
Valuation:
$15,500
Permit #:
B25-1060
Status:
issued
Fee:
$317
Permit Type:
N/A
Building Type:
N/A
Partial re-roof. removal of existing comparable shingle roof on east side of building. install new comparable shingle. project size 70 squares self-cert
Valuation:
$55,700
Permit #:
B25-4147
Status:
final
Fee:
$745
Permit Type:
N/A
Building Type:
N/A
**self-cert** remove and dispose of existing comparable shingles. install new 92 sq comparable shingles per manufacturers instructions meeting cool roof requirements **self-cert**
Valuation:
N/A
Permit #:
BLD23-3737
Status:
issued
Fee:
$481
Permit Type:
N/A
Building Type:
N/A
Overlay/mechanically attach new tpo roof system over existing roof system. achieves class a fire rating from underwriter's laboratory. new roof will be second on building
Valuation:
N/A
Permit #:
BLD24-7478
Status:
canceled
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Re-roof - benziger residence - 255 yulupa avenue tear off existing asphalt comparable shingle roof and gutters and install new comparable shingle roof and gutters. solar array will be removed prior to roofing work and re-installed after roofing work self cert
Valuation:
$43,200
Permit #:
B23-4285
Status:
final
Fee:
$368
Permit Type:
N/A
Building Type:
N/A
Remove and dispose of existing roof system. at low slope roof install a class a fire rated 60mil tpo roof membrane. at steep slope roof install a class a fire rated 24ga standing seam metal roof
Valuation:
$52,470
Permit #:
B23-0282
Status:
final
Fee:
$313
Permit Type:
N/A
Building Type:
N/A
Repair - emmons residence - 6483 timber springs drive - repair roof membrane where leaking as per owner request. self cert
Valuation:
$4,000
Permit #:
B25-3119
Status:
issued
Fee:
$315
Permit Type:
N/A
Building Type:
N/A
Remove and dispose of existing roofing and install new class a fire rated comparable shingles. self cert
Valuation:
$27,000
Permit #:
B25-1354
Status:
final
Fee:
$319
Permit Type:
N/A
Building Type:
N/A
Alton and Company Inc Reviews
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Verified License
BuildZoom confirmed this contractor's license
Alton and Company Inc License info
Verified License
| License # | 1043636 |
| Status | Active |
| State | California |
| Type | Roofing |
| Business Type | Corporation |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Alton and Company Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 836883 |
| Status | Inactive |
| State | California |
| Type | Roofing |
| 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.
Check this license's status for Alton and Company Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 885801 |
| Status | Inactive |
| State | California |
| Type | Roofing |
| 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.
Check this license's status for Alton and Company Inc at the California Contractors State License Board.
This is a sample of licensing data; click here to access a complete history.
116
BuildZoom Score
Bonded
| Bonded Agent | Old Republic Surety Company |
| Bond Value | $15,000 |
Insured
| Workers Comp Provider | Redwood Fire & Casualty Insurance Co |
388
Permits
- Building permit records show that Alton and Company Inc has worked on 388 permitted projects.
Alton and Company Inc Employees
BA
Brian Andrew Alton
Rmo / Ceo / Pres
PS
Paul Sharp
Chief Financial Officer
PS
Paul Sharp
Owner