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Location and Projects

Address
40 Research Pkwy, Old Saybrook, CT, 06475
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D/E/F Services Group, Ltd Electrician

D/E/F Services Group is a multifaceted multi-trade service and installation company with the goal to provide VALUE in the handling OF all aspects in not just ONE, but several trades including Mechanical, Electrical, and Plumbing (MEP) for building systems so a customer only needs one service provider.

Dedicated and conscious of our employees, our community, and our customers, D/E/F Services Group has been serving New England for twenty years and as we Build Our Value have become the one call our customers make for a contractor that can do it all.

One Contractor, One Call, One Relationship – We provide the “VALUE OF ONE“

From BuildZoom: D/E/F Services Group, Ltd, 40 Research Pkwy, Old Saybrook, CT (Employees: Jason Jacaruso and Jason Neri) holds a Asbestos Contractor license and 7 other licenses according to the Connecticut license board.

Their BuildZoom score of 102 ranks in the top 11% of 12,093 Connecticut licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring D/E/F Services Group, Ltd, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

D/E/F Services Group, Ltd Contact Information

Phone: (860) 376-4896
Address: 40 Research Pkwy, Old Saybrook, CT 06475

D/E/F Services Group, Ltd Old Saybrook

Quality

102
89th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
D/E/F Services Group, Ltd has a BuildZoom score of 102, which places them above 89% of 12,093 contractors in Connecticut.

Activity

1 project
 2025
1 project
 2024
1 project
 2023
Our building permit records indicate that D/E/F Services Group, Ltd 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.

Pricing

3 projects
 < $5k
1 project
 $5k-$20k
1 project
 $100k-$250k
Value Not Public: 0 projects
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.

Building Permits by D/E/F Services Group, Ltd

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Mechanical permit
140 Russ St, Hartford, CT, 6106
2025-07-17
Complete repairs of viessman vitocrossal 300 boiler that has suffered a ventilation failure causing a co leak. system is off repairs will be made to the venting system will be tested for operation and returned to functional use if deemed safe
Valuation:
$3,000
Permit #:
MISC-MEC-25-000055
Status:
issued
Fee:
$161
Permit Type:
Repair
Building Type:
Commercial
Hvac
70 Kane St, West Hartford, CT, 6119
2022-06-21
Installation of lg heat pump system consisting of lmu180hhv outdoor unit with (1) each of lmn079hvt and lsn090hsv5 interior wall-mounted units in 1-bedroom apartments. 2-bedroom apartments include an lmu240hhv outdoor unit with (2) lmno79hvt and (1) lsn090hsv5 interior unit. demolition and removal of existing exterior hvac unit and reclamation of refrigerant at cove/westwood apartment... see more
Valuation:
$356,000
Permit #:
PRHV20220002660
Status:
applied
Fee:
N/A
Permit Type:
HVAC
Building Type:
R-2-residential m...
Electrical permit
2 100a 0001 100 Kane St, West Hartford, CT, 06107
2022-06-01
Westwood apartments buildings #110 120 and 130. wiring of new lg heat pump systems into existing electrical panels demolition of existing whips and disconnects install new whips and disconnects with thermal surge protection devices demolition of electrical on existing hvac units being removed to make safe for disposal
Valuation:
$48,000
Permit #:
PREL20220002240
Status:
applied
Fee:
N/A
Permit Type:
Electrical
Building Type:
R-2-residential m...
Hvac
2 100a 0001 100 Kane St, West Hartford, CT, 06107
2021-07-21
Reclamation of refrigerant and uninstallation of electrical wiring made-safe on existing hvac units for cove/westwood apartments aka 106 kane street. install of (23) inverter heat pump mini split systems. (15) 1-bedroom systems (6) 2-bedroom systems (2) 2-bedroom townhouses. units commissioned upon install. 1-bedroom system lg 18, 000 btu outdoor (1) 7, 000 btu air handler for bedroom... see more
Valuation:
$183,318
Permit #:
PRHV20210003362
Status:
issued
Fee:
N/A
Permit Type:
HVAC
Building Type:
R-2-residential m...
Building permit
1630 Main St, Coventry, CT, 6238
2022-08-17
Renovation of 31 kitchens and replacement of front and rear doors of 40 units
Valuation:
$478,141
Permit #:
B-22-294
Status:
issued
Fee:
N/A
Permit Type:
Alteration/renova...
Building Type:
Multi-unit dwelling
Electrical permit
1630 Main St, Coventry, CT, 6238
2022-08-17
Wiring of kitchens for code compliance addition of circut for water heater shut off device
Valuation:
$59,211
Permit #:
E-22-224
Status:
issued
Fee:
N/A
Permit Type:
Electrical: comme...
Building Type:
Multi-unit dwelling
Electrical
112 Quaddick Mountain Rd, Thompson, CT, 6277
2024-08-12
Emergency service repair electrical meter and service entrance cable due to tree falling on house
Valuation:
$500
Permit #:
24-61E
Status:
expired
Fee:
$37
Permit Type:
Electric service ...
Building Type:
N/A
Electrical permit
857 A Federal Rd, Brookfield, CT, 6804
2023-09-20
Installation of underground conduits for building #2
Valuation:
$118,000
Permit #:
E-23-208
Status:
issued
Fee:
N/A
Permit Type:
Electrical
Building Type:
Multi-unit dwelling
Electrical permit
857 A Federal Rd, Brookfield, CT, 6804
2023-02-10
Install temporary service meter and 200 amp main temp panel
Valuation:
$3,500
Permit #:
E-23-32
Status:
complete
Fee:
N/A
Permit Type:
Electrical servic...
Building Type:
Apartments
Electrical permit
857 A Federal Rd, Brookfield, CT, 6804
2023-08-15
Building 1--installation of underground conduits
Valuation:
$10,000
Permit #:
E-23-177
Status:
complete
Fee:
N/A
Permit Type:
Electrical
Building Type:
Multi family
Mechanical permit
556 Zion St, Hartford, CT, 6106
2021-10-19
Replace ahu
Valuation:
$18,000
Permit #:
MISC-MEC-21-171657
Status:
complete
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A
Building
9 Windsorville Rd, Broad Brook, CT, 6016
2021-09-03
Abate remove and replace shower units in bathrooms. new flooring and paint. vanity and water closets to remain
Valuation:
$405,586
Permit #:
21-245B
Status:
complete
Fee:
$6,313
Permit Type:
Gas line
Building Type:
N/A
Electrical
495 Flatbush Ave, Hartford, CT, 6106
2014-03-25
Take over remaining portion(30-40%) of work on store | renovation previous contractor leaving jobmunis permit number: 20134822
Valuation:
$285,000
Permit #:
20134731-E000
Status:
issued
Fee:
N/A
Permit Type:
Commercial
Building Type:
N/A
Building
9 Windsorville Rd, Broad Brook, CT, 6016
2017-04-11
Building out 2 x 9 1/2 section for two laundry rooms for building 49-54 and building 61-66. install call for aid fire alarm system in all buildings and install replacement generator
Valuation:
$454,100
Permit #:
B-17-55
Status:
expired
Fee:
$118
Permit Type:
N/A
Building Type:
N/A
Building other
8 Pequot Dr, Gales Ferry, CT, 6335
2015-04-09
Remove and repair roof in area of rear deck re-support existing deck and install new stairs. remove existing vinyl replacement window enlarge window opening in lower level bedroom to accept new window of minimum 5 sq feet net clear opening. install new vinyl sliding patio doors. replace the existing overhead garage door
Valuation:
$10,835
Permit #:
14-406
Status:
complete
Fee:
$102
Permit Type:
Residental renova...
Building Type:
R-3
Building other
105 Gallup Hill Rd, Ledyard, CT, 6339
2014-12-11
Install vinyl siding replace 8 windows same size install new gutters and chimney pipe. windows are all 4/0 x 3/0 sliding windows replacing the exact same size that is currently in place. the chimney pipe is the vent pipe coming from the boiler through roof changing it and the vent cap because the existing vent cap had rotted off
Valuation:
$13,030
Permit #:
14-342
Status:
complete
Fee:
$117
Permit Type:
Renovation
Building Type:
R-3
Electrical
230 Cherry St, Milford, CT, 6460
2015-03-31
Installation of all rough and finish electric. includes fire alarm.
Valuation:
$300,000
Permit #:
E-15-170
Status:
issued
Fee:
N/A
Permit Type:
Electrical - Comm...
Building Type:
Commercial
Electrical
50 Chapin Ave, Rocky Hill, CT, 6067
2014-10-27
Low voltage data pa cctv access control burg wiring according to plans
Valuation:
$927,000
Permit #:
EP-2015-141
Status:
Issued
Fee:
$241
Permit Type:
Data/com
Building Type:
N/A
Plumbing
847 S Quaker Ln, West Hartford, CT, 6110
2016-06-21
New plumbing system domestic and sanitary for bathhouse at beachland aquatic per plans submitted.
Valuation:
$155,000
Permit #:
PRPL20140004883
Status:
final
Fee:
$40
Permit Type:
Plumbing
Building Type:
N/A
Hvac
847 S Quaker Ln, West Hartford, CT, 6110
2016-12-04
Install all exhaust ductwork for bathhouse beachland park aquatic center per plans submitted town of west hartford
Valuation:
$40,000
Permit #:
PRHV20140004882
Status:
final
Fee:
$10
Permit Type:
HVAC
Building Type:
N/A

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