Updated: Jun 01, 2026
Location and Projects
Address
Boston, MA, 02190
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Garrett William Duffy Roofer
Garrett William Duffy, Boston, MA holds a Building Licenses, Construction Supervisor Specialty license and 1 other license according to the Massachusetts license board.
Their BuildZoom score of 102 ranks in the top 11% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Garrett William Duffy, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
Garrett William Duffy Contact Information
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Garrett William Duffy Boston
Quality
102
89th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Garrett William Duffy has a BuildZoom score of 102, which places them above 89% of 139,240 contractors in Massachusetts.
Activity
|
4 projects
|
2025 |
|
5 projects
|
2024 |
|
3 projects
|
2023 |
Our building permit records indicate that Garrett William Duffy has worked on at least
12.0 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
|
12 projects
|
Roofing projects |
Analyzing permits over the last 4 years shows that Garrett William Duffy mostly works on
roofing project
projects.
Pricing
|
9 projects
|
$5k-$20k |
|
3 projects
|
$20k-$50k |
The typical size of their permits is approximately $19,305. 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 Garrett William Duffy
This is a sample of this contractor's permits. Click here to access their complete permit history.
Strip and install a new roof using certainteed landmark pro
Valuation:
$25,770
Permit #:
R-25-0504
Status:
final
Fee:
$312
Permit Type:
Roof
Building Type:
N/A
Strip and install a new roof using certainteed landmark pro shingles
Valuation:
$11,330
Permit #:
R-25-0463
Status:
final
Fee:
$144
Permit Type:
Roof
Building Type:
N/A
Strip off and install a new asphalt shingled roof using certainteed landmark pro shingles
Valuation:
$19,545
Permit #:
R-25-1072
Status:
issued
Fee:
$240
Permit Type:
Roof
Building Type:
N/A
Strip off all asphalt shingled roofing on the complete house. install a new roof using certainteed landmark pro shingles
Valuation:
$18,370
Permit #:
R-24-1125
Status:
final
Fee:
$228
Permit Type:
Newfamilydwelling
Building Type:
N/A
Strip off all asphalt shingled roofing. install a new roof using certainteed landmark shingles
Valuation:
$27,330
Permit #:
R-24-0839
Status:
issued
Fee:
$336
Permit Type:
Newfamilydwelling
Building Type:
N/A
Strip off old asphalt shingled roof. install a new roof using certainteed landmark pro shingles
Valuation:
$19,240
Permit #:
R-24-0965
Status:
final
Fee:
$240
Permit Type:
Roof
Building Type:
N/A
Strip and install a new certainteed landmark asphalt roof
Valuation:
$22,680
Permit #:
R-23-0687
Status:
final
Fee:
$276
Permit Type:
Roof
Building Type:
N/A
Strip and install a new roof asphalt shingled roof
Valuation:
$11,570
Permit #:
R-24-0072
Status:
issued
Fee:
$144
Permit Type:
Roof
Building Type:
N/A
Strip and install a new roof on the main roof only
Valuation:
$13,920
Permit #:
R-24-0071
Status:
issued
Fee:
$168
Permit Type:
Roof
Building Type:
N/A
Strip and install a new roof
Valuation:
$17,220
Permit #:
RSP-23-0315
Status:
issued
Fee:
$244
Permit Type:
Reroof
Building Type:
N/A
Strip and install a new roof
Valuation:
$19,510
Permit #:
R-23-1179
Status:
final
Fee:
$240
Permit Type:
Roof
Building Type:
N/A
Strip off the existing shingled roofing. install new a roof with certainteed landmark pro shingles
Valuation:
$19,370
Permit #:
R-25-1195
Status:
issued
Fee:
$240
Permit Type:
Roof
Building Type:
N/A
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BZ Score
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Garrett William Duffy Reviews
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Recent Buildzoom Projects
Verified License
BuildZoom confirmed this contractor's license
Garrett William Duffy License info
Verified License
| License # | CSSL-106241 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor Specialty |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Garrett William Duffy at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | CSSL-106241 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Cssl Rf Roofing |
- BuildZoom verified this license was active as of May 2026.
Verify this license's status for Garrett William Duffy at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
102
BuildZoom Score
12
Permits
- Building permit records show that Garrett William Duffy has worked on 12 permitted projects.