Updated: May 27, 2026
Location and Projects
Address
Mendon, MA, 01756
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John T Oneil Construction
John T Oneil at Mendon, MA 01756, held a General Contractor license (#CS-040175) with the Massachusetts contractors license board with an expiration date of 07-22-2012. We last verified the license was inactive on 05-26-2026.
Their BuildZoom score is 0 because we haven’t been able to verify an active license. As a result, they’re not ranked in the top 50% of 139,240 Massachusetts contractors.
If you’re thinking about hiring them, we recommend double-checking their license status with your local licensing authority. Alternatively, use our project planner to be easily matched to qualified, licensed professionals in your area.
John T Oneil Services
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John T Oneil Contact Information
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John T Oneil Mendon
Quality
Alert*
Pro tip:
We generally recommend hiring a contractor with a score higher than 95.
*No active license on file. If you are John T Oneil, click “This is My Business” to update your information.
Activity
|
1 project
|
2024 |
|
2 projects
|
2023 |
Our building permit records indicate that John T Oneil 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
|
2 projects
|
$5k-$20k |
|
2 projects
|
$100k-$250k |
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.
Installation of fire alarm system including smoke detectors heat detectors pull stations audio visual devices new fire alarm control panel modules master box battery cabinets beacon municipal circuit. installation of pa system including new ceiling speakers combo speaker clocks, call button
Valuation:
$150,000
Permit #:
ELV1565105
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
New panels and tx's on floors 3, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 18, 21 office office and bathroom renovations o n floors 2, 3, 6, 15, 16, 21 relocate/add fire alarm devices on floors 3, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 18, 21 install new data/voice jacks and cable on floors 2, 3, 6, 15, 16, 21
Valuation:
$2,579,640
Permit #:
E1344660
Status:
complete
Fee:
$26,570
Permit Type:
N/A
Building Type:
Commercial
Installation of fire alarm system including smoke detectors heat detectors pull stations audio visual devices new fire alarm control panel modules master box battery cabinets beacon municipal circuit. installation of exit signs and ebus
Valuation:
$15,000
Permit #:
E1565108
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
Installation of fire alarm system including smoke detectors heat detectors pull stations audio visual devices new fire alarm control panel modules master box battery cabinets beacon municipal circuit
Valuation:
$120,000
Permit #:
EFA1553889
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
Install new 1750 kw generator 1 3000a transfer switch 1 800a transfer switch and 1 load bank on roof
Valuation:
$2,200,000
Permit #:
E1289847
Status:
complete
Fee:
$22,020
Permit Type:
N/A
Building Type:
Commercial
Replace building main dual 500 amp switchboards and extend and reconnect existing feeders from utility vault. addition new switchboard in mechanical room to feed refurbished motor control centers. addition new bathroom lighting.replace 12 garage lighting fixtures. wire hand dryers replace 20 gfi receptacles
Valuation:
$2,761,515
Permit #:
E1106409
Status:
filed
Fee:
$5,525
Permit Type:
N/A
Building Type:
Commercial
600a temporary service fed from existing pad mount transformer that is part of owner service. this serves new n building addition for construction temporary power
Valuation:
N/A
Permit #:
ETS1440477
Status:
complete
Fee:
$85
Permit Type:
N/A
Building Type:
Other
Renovations to 11th 13th 143th 1and 18th floors
Valuation:
$480,000
Permit #:
E1248722
Status:
complete
Fee:
$295
Permit Type:
N/A
Building Type:
Commercial
Install new exit sign emergency lighting and fire alarm and intercom system
Valuation:
$150,000
Permit #:
E1553864
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
Addition new data and voice jacks on the 11th 13th 14 and 18th floors
Valuation:
$120,000
Permit #:
ELV1303646
Status:
complete
Fee:
$1,220
Permit Type:
N/A
Building Type:
Commercial
Install 37 new exterior security cameras and 5 roof antennas on various building in franklin field housing development with cat 6 data wire
Valuation:
$130,000
Permit #:
ELV1111644
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Multi
Furnish and install 42 new security cameras cat 6 cabling network switches and recording equipment
Valuation:
$60,000
Permit #:
ELV1087743
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Multi
Installation of new intercom system and speakers
Valuation:
$15,000
Permit #:
ELV1553873
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
New josiah quincy school - new electrical service new interior and exterior lighting 2 new generators. new power data intercom av clock systems. new fire alarm and security/accesscontraol and cctv systems
Valuation:
$12,340,000
Permit #:
E1350890
Status:
complete
Fee:
$4,000
Permit Type:
N/A
Building Type:
Other
Replace emergency generator, with new 60kw diesel replace existing 800a switchboard with new switchboard. install new corridor emergency exterior wallpack exit sign lighting. install new classroom outlets
Valuation:
$680,000
Permit #:
E1105130
Status:
complete
Fee:
$500
Permit Type:
N/A
Building Type:
Other
Replace emergency generator, with new 60kw diesel replace existing 2000a switchboard with new switchboard. install 12 new panels to replace existing. addition 1200a mdp panel and new feeder through basement. new 125 emdp panel
Valuation:
$540,000
Permit #:
E1105133
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
Replace new 2000a switchboard with new. remove and reinstall new install 75kw generator. replace 8 electrical panels addition 300kw dry transformer. replace select feeders. addition new transfer switch and 2 lights
Valuation:
$180,000
Permit #:
E1164559
Status:
complete
Fee:
$250
Permit Type:
N/A
Building Type:
Other
Install 2 two hour rated wall assemblies and 2 rated doors to house new fire larm and bda panels on existing masonry wall at the prescottt school in charlestown in conjunction with electrical and fire alarm permit. remove 700 sq/ft of spline ceiling and replace with new 2x2 acoustic panel tiles
Valuation:
$40,000
Permit #:
SF1112791
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
New electrical service 277/480v 1600amps. move pad mount transformer extend primary and secondary conduit. install new 1600amp switcthboard
Valuation:
$42,000
Permit #:
E783691
Status:
complete
Fee:
$425
Permit Type:
N/A
Building Type:
Commercial
Voice/data work thru existing conduit
Valuation:
$7,000
Permit #:
ELV516663
Status:
filed
Fee:
$90
Permit Type:
N/A
Building Type:
Commercial
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John T Oneil Reviews
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John T Oneil License info
Inactive License
| License # | CS-040175 |
| 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 T Oneil at the Massachusetts Department of Public Safety.
This is a sample of licensing data; click here to access a complete history.
ALERT*
BuildZoom Score
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- *No active license on file. If you are John T Oneil, click “This is My Business” to update your information.
16
Permits
- Building permit records show that John T Oneil has worked on 16 permitted projects.