Updated: Jun 16, 2026
Location and Projects
Address
Sandwich, MA, 02563
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John A. Oconnor Construction
John A. Oconnor, Sandwich, MA (Employee: John C. Oconnor) holds a Building Licenses, Construction Supervisor license and 5 other licenses according to the Massachusetts license board.
Their BuildZoom score of 94 ranks in the top 24% of 139,240 Massachusetts licensed contractors.
Their license was verified as active when we last checked. If you are thinking of hiring John A. Oconnor, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
John A. Oconnor Services
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John A. Oconnor Contact Information
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John A. Oconnor Sandwich
Quality
94
76th percentile
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
John A. Oconnor has a BuildZoom score of 94, which places them above 76% of 139,240 contractors in Massachusetts.
Activity
|
2 projects
|
2025 |
|
1 project
|
2023 |
Our building permit records indicate that John A. Oconnor has worked on at least
3.0 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.
Pricing
|
1 project
|
$5k-$20k |
|
1 project
|
$20k-$50k |
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.
Renovate existing offices on first floor 1, 485 sq. work area: restore original entrance on massachusetts avenue
Valuation:
$70,000
Permit #:
ALT1245081
Status:
filed
Fee:
$910
Permit Type:
N/A
Building Type:
Commercial
Repair retaining wall. compliant with 780 cmr and brookline zoning by laws
Valuation:
$26,500
Permit #:
BP-2025-001517
Status:
issued
Fee:
$540
Permit Type:
N/A
Building Type:
N/A
Remove faulty lift and have lift company install new lift. there is already an existing shaft
Valuation:
$50,000
Permit #:
SF1405763
Status:
complete
Fee:
$520
Permit Type:
N/A
Building Type:
Commercial
Officescertificate for: offices on first floor;alt1245081 issue 3/28/22
Valuation:
$70,000
Permit #:
COO1392240
Status:
complete
Fee:
$587
Permit Type:
N/A
Building Type:
Commercial
Change of occupancy from lodging house r-2 occupancy to group residence general; occupancy. no new interior layout. work;to include provide new automatic sprinkler and fire alarm and detection systems install new kitchen cabinets counters and sink
Valuation:
$60,000
Permit #:
ALT716100
Status:
complete
Fee:
$848
Permit Type:
N/A
Building Type:
Other
Vp - building permit - historical permit
2019-07-01
Scope: hvac 1. installation of: 2 warm air high efficiency gas furnaces with cooling2. the indoor equipment will be located: 1st floor: basement 2nd floor: front eves3. the outdoor equipment will be located: tbd4. all wiring will be provided by general contractors licensed electrical contractor5. all exterior drain & refrigeration piping will be professionally concealed with slim duct... see more
Valuation:
$24,000
Permit #:
176135
Status:
issued
Fee:
N/A
Permit Type:
Building - sheet ...
Building Type:
Single family
Removal of two interior curtain walls to create a larger meeting space. non structural wall
Valuation:
$10,000
Permit #:
SF1478895
Status:
filed
Fee:
$120
Permit Type:
N/A
Building Type:
Commercial
Change of occupancy from lodging house r-2 occupancy to group residence, ;general occupancy. no new interior layout. work to include new automatic;fire sprinkler;system;and fire alarm detection system only
Valuation:
$60,000
Permit #:
ALT716091
Status:
complete
Fee:
$848
Permit Type:
N/A
Building Type:
Other
Addition one stud wall with door to create an office
Valuation:
$5,000
Permit #:
SF1385887
Status:
filed
Fee:
$70
Permit Type:
N/A
Building Type:
Commercial
Remove water damaged studs repoint masonry and water proof one corner of the basement. apply waterproofing to foundation wall. install new 2-1/2 metal stud wall framing @ 16 o.c. with 1 clearance to masonry. spray full depth 3-1/2 ccspf insulation icynene medium density closed cell or equivalent. provide 5/8 paperless gypsum on studs install a 3 high cement board course at base of wal... see more
Valuation:
$24,000
Permit #:
SF823775
Status:
filed
Fee:
$260
Permit Type:
N/A
Building Type:
Other
One central warm air by gas heating system in attic with cooling work to meet 2015imc
Valuation:
N/A
Permit #:
MP-2019-0090
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Bsm: furnace water heater
Valuation:
N/A
Permit #:
G-21-10173
Status:
issued
Fee:
$69
Permit Type:
Replacement
Building Type:
N/A
Group residence limited alter 716091 issued 6/4/18
Valuation:
$60,000
Permit #:
COO916346
Status:
complete
Fee:
$260
Permit Type:
N/A
Building Type:
Other
Group residence alter 716100 issued 6/6/18 ;
Valuation:
$60,000
Permit #:
COO916352
Status:
complete
Fee:
$235
Permit Type:
N/A
Building Type:
Other
Bsm: water heater
Valuation:
N/A
Permit #:
bsm: water heater
Status:
plumb.
Fee:
$70
Permit Type:
Replacement
Building Type:
N/A
Renovation four front bay windows and replace five windows with historical requirements
Valuation:
$7,200
Permit #:
SF837016
Status:
filed
Fee:
$100
Permit Type:
N/A
Building Type:
1-2fam
Generator
Valuation:
N/A
Permit #:
BLDG-17-004630
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
Up grade wiring though out house and wiring of remodeled kitchen and bathroom room
Valuation:
$11,000
Permit #:
E893449
Status:
filed
Fee:
$181
Permit Type:
N/A
Building Type:
1-2fam
No Description Available
Valuation:
N/A
Permit #:
P-21-10171
Status:
issued
Fee:
$45
Permit Type:
Replacement
Building Type:
N/A
Furnace
Valuation:
N/A
Permit #:
BLDG-20-003186
Status:
complete
Fee:
$50
Permit Type:
N/A
Building Type:
N/A
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BZ Score
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John A. Oconnor License info
Verified License
| License # | CS-074141 |
| Status | Active |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- BuildZoom verified this license was active as of June 2026.
Verify this license's status for John A. Oconnor at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 8859 |
| Status | Active |
| State | Massachusetts |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of May, 2024. Check the current license status of John A. Oconnor with the Commonwealth of Massachusetts E-Licensing Board
This is a sample of licensing data; click here to access a complete history.
License Not Verified
| License # | 11191 |
| Status | Active |
| State | Massachusetts |
| Type | Plumber |
- When BuildZoom last verified this license, it had an expiration date of May, 2024. Check the current license status of John A. Oconnor with the Commonwealth of Massachusetts E-Licensing Board
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CS-096123 |
| Status | Inactive |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- According to the Massachusetts Department of Public Safety, 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 John A. Oconnor at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | CS-019387 |
| Status | Inactive |
| State | Massachusetts |
| Type | Building Licenses, Construction Supervisor |
- According to the Massachusetts Department of Public Safety, 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 John A. Oconnor at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
Inactive License
| License # | PM-297401 |
| Status | Inactive |
| State | Massachusetts |
| Type | Pipefitter Master Pp |
- According to the Massachusetts Department of Public Safety, 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 John A. Oconnor at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
94
BuildZoom Score
54
Permits
- Building permit records show that John A. Oconnor has worked on 54 permitted projects.
John A. Oconnor Employees
JO
John A. Oconnor
JO
John C. Oconnor