Updated: Jun 03, 2026
Location and Projects
Address
31 LONDON HILL LANE, Pepperell, MA, 01463
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Dennis J Mahoney Construction
Dennis J Mahoney, 31 London Hill Ln, Pepperell, MA holds a Building Licenses, Construction Supervisor license and 2 other licenses 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 Dennis J Mahoney, we recommend double-checking their license status with the license board and using our bidding system to get competitive quotes.
Dennis J Mahoney Services
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Dennis J Mahoney Contact Information
Address: 31 LONDON HILL LANE, Pepperell, MA 01463
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This is a sample of this contractor's permits. Click here to access their complete permit history.
Demolish existing electrical install new service generator distribution mechanical feeds lighting and general power to ne center for homeless veterans. work performed on floors: basement first mezz 2nd, 3rd, 4th, 9th and roof
Valuation:
$2,400,000
Permit #:
E469573
Status:
complete
Fee:
$1,025
Permit Type:
N/A
Building Type:
Other
Install new fire alarm system at ne center for homeless veterans. work will be performed in multiple phases and existing/temp system will remain in place throughout construction
Valuation:
$200,000
Permit #:
EFA469579
Status:
filed
Fee:
$2,020
Permit Type:
N/A
Building Type:
Other
Install power to (7) office admin trailers at dudley street neighborhood charter school (old emerson school. install lighting power in trailers
Valuation:
$80,000
Permit #:
E515308
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
Boston latin academy--install conduits for intercom and clock systems install 120 volt power for intercom & clock system install hand dryers in bathrooms
Valuation:
$180,000
Permit #:
E436232
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
Electrical demolish temp lights new power and lighting for new science rooms at gardner pilot academy. city of boston school--see no fee letter from bps
Valuation:
$35,000
Permit #:
E606893
Status:
complete
Fee:
$122
Permit Type:
N/A
Building Type:
Other
Demolish existing electrical power light fixtures etc on floors 1 through 6. install new lighting and power for (9) sets of core bathrooms
Valuation:
$450,000
Permit #:
E390958
Status:
filed
Fee:
$214
Permit Type:
N/A
Building Type:
Commercial
Install power lighting and mechanical feeds to new haley house dudly dough restaraunt at the dudley municipal building (space #6)
Valuation:
$110,000
Permit #:
E478764
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Install all new electrical distribution power lighting low voltage raceways theatrical lighting etc. for the new general admissions building at umass boston
Valuation:
$9,500,000
Permit #:
E362782
Status:
filed
Fee:
$3,030
Permit Type:
N/A
Building Type:
Other
Demolish existing lighting and power and install new lighting and power for second floor classrooms at the ne council of carpenters
Valuation:
$80,000
Permit #:
E387749
Status:
complete
Fee:
$182
Permit Type:
N/A
Building Type:
Commercial
Demolish existing 5th and 7th floors at 600 washington street. install new panels feeders grounding power lighting and low voltage conduits.also install temp lighting and power for contruction
Valuation:
$820,000
Permit #:
E67917
Status:
complete
Fee:
$1,924
Permit Type:
N/A
Building Type:
Commercial
Demolish existing 2nd and 3rd floors. install new power and lighting for office space on 2nd floor 3rd floor 4th floor office 4002 and 1rst floor offices 1002 & 1017
Valuation:
$700,000
Permit #:
E111981
Status:
complete
Fee:
$1,597
Permit Type:
N/A
Building Type:
Commercial
Install tel/data and security to (7) office/admin. trailers at dudley street neighborhood charter school (old emerson school
Valuation:
$15,000
Permit #:
ELV515312
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Other
Install phnoe data and catv on floors basement, 1rst 2nd 3rd 4th and 9th at the ne center for homeless veterans
Valuation:
$110,000
Permit #:
ELV469583
Status:
filed
Fee:
$1,120
Permit Type:
N/A
Building Type:
Other
Install power lighting and mechanical feeds for new gallery eye care (space #5) at the dudley municipal building
Valuation:
$90,000
Permit #:
E478757
Status:
filed
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Install power lighting and mechanical feeds for new tasty burger restaraunt at the dudly municipal building. rough in (58) light fixture locations &; (1) sign circuit
Valuation:
$120,000
Permit #:
E478746
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
Commercial
Install underground duct banks install slab conduits floor boxes install ground grid and relocate existing utilities for the new umass acacemic building #1
Valuation:
$115,000
Permit #:
E226982
Status:
filed
Fee:
$1,170
Permit Type:
N/A
Building Type:
Other
Demolish existing space install new power lighting panels ups cable tray low voltage raceway for new salesforce software office fitout
Valuation:
$230,000
Permit #:
E294477
Status:
filed
Fee:
$462
Permit Type:
N/A
Building Type:
Commercial
Demolish existing electrical install new lights and power for 2nd floor tenant partners healthcare fitout
Valuation:
$370,000
Permit #:
E403646
Status:
complete
Fee:
$805
Permit Type:
N/A
Building Type:
Commercial
Demolish electrical on 4th and 6th floors and install new distribution power lighting and roof top stand by generator. also renovate first floor mail room power & lights
Valuation:
$800,000
Permit #:
E87203
Status:
complete
Fee:
$2,120
Permit Type:
N/A
Building Type:
Commercial
Install conduits & sleeves for wi-fi devices at hynes convention center
Valuation:
$150,000
Permit #:
E560076
Status:
complete
Fee:
$1,520
Permit Type:
N/A
Building Type:
Other
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Dennis J Mahoney License info
Verified License
| License # | CS-099264 |
| 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 Dennis J Mahoney 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 # | 24442 |
| Status | Active |
| State | Massachusetts |
- When BuildZoom last verified this license, it had an expiration date of July, 2016. Check the current license status of Dennis J Mahoney 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 # | 000024442 |
| Status | Inactive |
| City | Newton |
| Type | Electrical Contractor |
- According to the City of Newton Massachusetts, 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 Dennis J Mahoney at the City of Newton Massachusetts.
This is a sample of licensing data; click here to access a complete history.
91
BuildZoom Score
204
Permits
- Building permit records show that Dennis J Mahoney has worked on 204 permitted projects.
Dennis J Mahoney Employees
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