Updated: Mar 30, 2026
Location and Projects
Address
500 GRAVES RD., Conway, MA, 01341
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William J. O'neil Jr Construction
William J. O'neil Jr, 500 Graves Rd, Conway, MA (Owned by: William O'neil) holds a Home Improvement Contractor license according to the Massachusetts license board.
Their BuildZoom score of 91 ranks in the top 37% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring William J. O'neil Jr, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.
William J. O'neil Jr Services
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William J. O'neil Jr Contact Information
Phone Number: (413) 374-7731
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Address: 500 GRAVES RD., Conway, MA 01341
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Deck add-on
Valuation:
$2,100
Permit #:
R-20-0495
Status:
complete
Fee:
$50
Permit Type:
Deck
Building Type:
N/A
Move existing meter box and addition circuits to new addition (kitchen bump out)
Valuation:
$3,200
Permit #:
E-19-0687
Status:
issued
Fee:
$100
Permit Type:
N/A
Building Type:
Residential
Rebuild front porch
Valuation:
$6,000
Permit #:
R-18-0665
Status:
complete
Fee:
$120
Permit Type:
N/A
Building Type:
N/A
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Verified License
BuildZoom confirmed this contractor's license
William J. O'neil Jr License info
Verified License
| License # | 182934 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
| Date Issued | 09-14-2025 |
- BuildZoom verified this license was active as of March 2026.
Verify this license's status for William J. O'neil Jr at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
William J. O'neil Jr Employees
WN
William O Neil
Responsible Person
WO
William O'neil
Owner