Updated: Jul 27, 2026
Location and Projects
Address
78 WINTHROP AVE, Quincy, MA, 02170
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G Oconnell Construction
G Oconnell Construction, 78 Winthrop Ave, Quincy, MA (Owned by: Gerald Oconnell) holds a Home Improvement Contractor license and 1 other 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 G Oconnell Construction, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
G Oconnell Construction Services
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G Oconnell Construction Contact Information
Phone Number: (617) 347-0943
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Address: 78 WINTHROP AVE, Quincy, MA 02170
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Building Permits by G Oconnell Construction
This is a sample of this contractor's permits. Click here to access their complete permit history.
Building 14x14 shed dormer. layover single layer roof 12 squares
Valuation:
$26,500
Permit #:
R-15-0331
Status:
final
Fee:
$276
Permit Type:
Repair alteration
Building Type:
N/A
Rebuild 20x24 two car garage with 8x16 side addition for pool equipment
Valuation:
$49,000
Permit #:
17796
Status:
active
Fee:
$588
Permit Type:
Rehab - residential
Building Type:
Single family - o...
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Verified License
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G Oconnell Construction License info
Verified License
| License # | 146224 |
| Status | Active |
| State | Massachusetts |
| Type | Home Improvement Contractor |
- BuildZoom verified this license was active as of July 2026.
Verify this license's status for G Oconnell Construction at the Mass.gov Consumer Affairs and Business Regulation.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | 113721 |
| 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 G Oconnell Construction 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
G Oconnell Construction Employees
GO
Geoffrey O'connell
Responsible Person
GO
Gerald M Oconnell
Responsible Person
GO
Gerald Oconnell
Owner
OC
O'connell Construction
Owner