Updated: Jul 11, 2026
Location and Projects
Address
134 WALNUT ST, Lynn, MA, 01905
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Stephen J. Duffy Electrician
Stephen J. Duffy, 134 Walnut St, Lynn, MA (Owned by: Stephen Duffy) holds a Building Licenses, Construction Supervisor license and 6 other licenses according to the Massachusetts license board.
Their BuildZoom score of 96 ranks in the top 20% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring Stephen J. Duffy, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Stephen J. Duffy Contact Information
Phone Number: (978) 532-1838
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Address: 134 WALNUT ST, Lynn, MA 01905
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Stephen J. Duffy Lynn
Quality
96
80th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
Stephen J. Duffy has a BuildZoom score of 96, which places them above 80% of 139,240 contractors in Massachusetts.
Activity
|
5 projects
|
2025 |
Our building permit records indicate that Stephen J. Duffy has worked on at least
5.0 projects 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.
Experience
|
4 projects
|
Electrical projects |
Analyzing permits over the last 4 years shows that Stephen J. Duffy mostly works on
electrical project
projects.
Pricing
|
2 projects
|
< $5k |
|
1 project
|
$5k-$20k |
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.
Relocate light fixture & switch for new cellar stairs
Valuation:
$1,500
Permit #:
EP-25-131
Status:
issued
Fee:
$100
Permit Type:
Residential addit...
Building Type:
N/A
Supply and install a new service. outside and basement
Valuation:
N/A
Permit #:
E-25-00003
Status:
issued
Fee:
$75
Permit Type:
N/A
Building Type:
N/A
Small addition: 7 outlets. 5 lights 4 switches. 1 outdoor outlet. 1 outdoor flood light
Valuation:
$4,500
Permit #:
EP-2025-000552
Status:
complete
Fee:
$100
Permit Type:
N/A
Building Type:
N/A
Install temporary exterior steel handicap ramp enlarge 3 interior doors to 36 x 80 replace 5 ft tub with 5 ft handicap accessible handicap shower tub
Valuation:
$8,900
Permit #:
B-20-557
Status:
complete
Fee:
$235
Permit Type:
Alterations/renov...
Building Type:
Two family
Install temporary exterior steel handicap ramp enlarge 3 interior doors to 36 x 80 replace 5 ft tub with 5 ft handicap accessible handicap shower tub
Valuation:
$8,900
Permit #:
B-20-557
Status:
complete
Fee:
$235
Permit Type:
Alterations/renov...
Building Type:
Two family
Install temporary exterior steel handicap ramp enlarge 3 interior doors to 36 x 80 replace 5 ft tub with 5 ft handicap accessible handicap shower tub
Valuation:
N/A
Permit #:
99210
Status:
complete
Fee:
N/A
Permit Type:
Alterations/renov...
Building Type:
N/A
Wire new kitchen and update devices 200 amp service and wire generator
Valuation:
N/A
Permit #:
E-22-00103
Status:
issued
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Sub panel kitchen bathroom wiring for in law apartment
Valuation:
$7,000
Permit #:
ELEC22-00321
Status:
final
Fee:
$175
Permit Type:
Alteration
Building Type:
N/A
Repairs to 100 amp service hit by tree during storm
Valuation:
$500
Permit #:
ELEC21-00755
Status:
final
Fee:
$65
Permit Type:
Alteration
Building Type:
N/A
Remove vinyl siding left alleyway side of building only remove and replace any damaged plywood and insulation apply tyvek install new hardy backer
Valuation:
$22,000
Permit #:
SF822197
Status:
filed
Fee:
$240
Permit Type:
N/A
Building Type:
Multi
Convert office into a dwelling unit. 2 bedroom apartment - outlets switches and lighting
Valuation:
N/A
Permit #:
71563
Status:
issued
Fee:
N/A
Permit Type:
New construction ...
Building Type:
Condo
Service upgrade & wire new family room laundry area & closet
Valuation:
$4,900
Permit #:
E-20-174
Status:
issued
Fee:
$100
Permit Type:
Miscellaneous ele...
Building Type:
Single family
Construction of existing barn into livable space
Valuation:
$258,000
Permit #:
R-18-0918
Status:
complete
Fee:
$3,000
Permit Type:
Alteration weathe...
Building Type:
N/A
Misc repairs in basement
Valuation:
$500
Permit #:
ELEC21-00754
Status:
issued
Fee:
$65
Permit Type:
Alteration
Building Type:
N/A
Kitchen updating
Valuation:
$7,000
Permit #:
20110415
Status:
complete
Fee:
$140
Permit Type:
N/A
Building Type:
N/A
Kitchen update
Valuation:
$4,500
Permit #:
20-180E
Status:
complete
Fee:
$114
Permit Type:
N/A
Building Type:
N/A
Wire new tankless water heater
Valuation:
$800
Permit #:
E-19-177
Status:
complete
Fee:
$50
Permit Type:
Miscellaneous ele...
Building Type:
Single family
Wire new home outlers switches
Valuation:
N/A
Permit #:
72358
Status:
issued
Fee:
N/A
Permit Type:
New construction ...
Building Type:
Devel land
Pour a 1 sided foundation wall to eliminate holes in existing stone foundation
Valuation:
$10,000
Permit #:
R-18-0214
Status:
complete
Fee:
$100
Permit Type:
Foundationonlyexbldg
Building Type:
N/A
Wire 3 ton air conditioning unit
Valuation:
$800
Permit #:
E-18-700
Status:
complete
Fee:
$50
Permit Type:
Miscellaneous ele...
Building Type:
Single family
Similar Contractors See more
133
BZ Score
$4.5K
Avg Project
-
Projects
144
BZ Score
-
Avg Project
-
Projects
135
BZ Score
-
Avg Project
-
Projects
Stephen J. Duffy Reviews
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Verified License
BuildZoom confirmed this contractor's license
Stephen J. Duffy License info
Verified License
| License # | CS-107656 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for Stephen J. 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 # | 21790 |
| Status | Active |
| State | Massachusetts |
| Type | Electrician |
- BuildZoom verified this license was active as of April 2026.
Verify this license's status for Stephen J. Duffy at the Commonwealth of Massachusetts E-Licensing Board.
This is a sample of licensing data; click here to access a complete history.
Verified License
| License # | 177644 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 02-15-2026 |
- BuildZoom verified this license was active as of January 2026.
Verify this license's status for Stephen J. Duffy at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 21790 |
| Status | Active |
| City | Newton |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of July, 2022. Check the current license status of Stephen J. Duffy with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 21790 |
| Status | Active |
| City | Newton |
| Type | Electrical Contractor |
- When BuildZoom last verified this license, it had an expiration date of July, 2022. Check the current license status of Stephen J. Duffy with the City of Newton Massachusetts
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 35947 |
| Status | Active |
| State | Massachusetts |
- When BuildZoom last verified this license, it had an expiration date of July, 2016. Check the current license status of Stephen J. Duffy with the Massachusetts Department of Consumer Affairs and Business Regulation
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 146708 |
| Status | Inactive |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- According to the Mass.gov Consumer Affairs and Business Regulation, 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 Stephen J. Duffy at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
96
BuildZoom Score
68
Permits
- Building permit records show that Stephen J. Duffy has worked on 68 permitted projects.
Stephen J. Duffy Employees
SD
Stephen Duffy
Owner
SD
Stephen J Duffy
Owner
SD
Stephen J. Duffy