D/E/F Services Group, Ltd.
Griswold, CT 06351
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Our Story
D/E/F now offers electrical, mechanical, HVAC, plumbing, specialty low voltage wiring services, general trades (carpentry, painting, flooring etc.), security, and excavation.
Commercial Experience
Regions & Counties Serviced
- Connecticut and Western Mass.
Connecticut All
Rhode Island All
Our CSI Codes
01 21 43 - Time Allowances
01 35 16 - Alteration Project Procedures
06 01 10 - Maintenance of Rough Carpentry
06 01 10.71 - Rough Carpentry Rehabilitation
06 01 10.91 - Rough Carpentry Restoration
06 01 10.92 - Rough Carpentry Preservation
06 06 10 - Schedules for Rough Carpentry
06 06 10.13 - Nailing Schedule
06 06 10.19 - Plywood Shear Wall Schedule
06 10 53 - Miscellaneous Rough Carpentry
06 13 13 - Log Construction
06 13 13.91 - Period Horizontal Log Work
06 13 16 - Pole Construction
06 13 23 - Heavy Timber Construction
06 14 00.00.01 - Treated Wood Foundations
06 20 13 - Exterior Finish Carpentry
06 46 91 - Splicing of Wooden Components
08 01 10 - Operation and Maintenance of Doors and Frames
08 01 74 - Operation and Maintenance of Access Control Hardware
08 06 10 - Door Schedule
08 74 19 - Biometric Identity Access Control Hardware
09 06 00.13 - Room Finish Schedule
11 14 13.13 - Portable Posts and Railings
11 14 13.16 - Rotary Gates
11 14 13.19 - Turnstiles
13 01 50 - Operation and Maintenance of Special Instrumentation
13 06 50 - Schedules for Special Instrumentation
13 08 50 - Commissioning of Special Instrumentation
13 53 13 - Solar Instrumentation
13 53 23 - Wind Instrumentation
22 01 10 - Operation and Maintenance of Plumbing Piping and Pumps
22 01 30 - Operation and Maintenance of Plumbing Equipment
22 01 40 - Operation and Maintenance of Plumbing Fixtures
22 06 10 - Schedules for Plumbing Piping and Pumps
22 06 10.13 - Plumbing Pump Schedule
22 06 30.13 - Domestic Water Heater Schedule
22 10 00.00.01 - Plumbing Piping and Pumps
22 13 19.13 - Sanitary Drains
23 01 20 - Operation and Maintenance of HVAC Piping and Pumps
23 01 80 - Operation and Maintenance of Decentralized HVAC Equipment
23 06 20 - Schedules for HVAC Piping and Pumps
23 06 50.13 - Heating Boiler Schedule
23 06 80.16 - Convection Heating and Cooling Unit Schedule
23 20 00.00.01 - HVAC Piping and Pumps
23 56 13 - Heating Solar Collectors
23 56 13.13 - Heating Solar Flat-Plate Collectors
23 56 13.16 - Heating Solar Concentrating Collectors
23 56 13.19 - Heating Solar Vacuum-Tube Collectors
23 56 16 - Packaged Solar Heating Equipment
25 05 26 - Grounding and Bonding for Integrated Automation
25 58 00.00.01 - Integrated Automation Control of Electronic Safety and Security Systems
25 98 00.00.01 - Integrated Automation Control Sequences for Electronic Safety and Security Systems
26 01 10 - Operation and Maintenance of Medium-Voltage Electrical Distribution
26 01 20 - Operation and Maintenance of Low-Voltage Electrical Distribution
26 06 10 - Schedules for Medium-Voltage Electrical Distribution
26 06 20 - Schedules for Low-Voltage Electrical Distribution
26 06 20.26 - Wiring Device Schedule
26 10 00.00.01 - Medium-Voltage Electrical Distribution
26 18 13 - Medium-Voltage Cutouts
26 20 00.00.01 - Low-Voltage Electrical Distribution
26 21 00.00.01 - Low-Voltage Overhead Electrical Power Systems
26 31 00.00.01 - Photovoltaic Collectors
26 32 23 - Wind Energy Equipment
26 43 13 - Transient-Voltage Suppression for Low-Voltage Electrical Power Circuits
27 01 10 - Operation and Maintenance of Structured Cabling and Enclosures
27 01 20 - Operation and Maintenance of Data Communications
27 05 13.23 - T1 Services
27 05 13.33 - DSL Services
27 05 13.43 - Cable Services
27 05 26 - Grounding and Bonding for Communications Systems
27 05 28 - Pathways for Communications Systems
27 06 10 - Schedules for Structured Cabling and Enclosures
27 06 20 - Schedules for Data Communications
27 06 30 - Schedules for Voice Communications
27 10 00.00.01 - Structured Cabling
27 11 13 - Communications Entrance Protection
27 11 23 - Communications Cable Management and Ladder Rack
27 13 13.13 - Communications Copper Cable Splicing and Terminations
27 13 23 - Communications Optical Fiber Backbone Cabling
27 13 23.13 - Communications Optical Fiber Splicing and Terminations
27 13 33 - Communications Coaxial Backbone Cabling
27 13 33.13 - Communications Coaxial Splicing and Terminations
27 13 43 - Communications Services Cabling
27 13 43.23 - T1 Services Cabling
27 13 43.33 - DSL Services Cabling
27 13 43.43 - Cable Services Cabling
27 15 00.16 - Voice Communications Horizontal Cabling
27 15 00.19 - Data Communications Horizontal Cabling
27 15 00.49 - Intermediate Frequency/Radio Frequency Communications Horizontal Cabling
27 15 13 - Communications Copper Horizontal Cabling
27 15 23 - Communications Optical Fiber Horizontal Cabling
27 15 33 - Communications Coaxial Horizontal Cabling
27 21 13 - Data Communications Firewalls
28 01 10 - Operation and Maintenance of Electronic Access Control and Intrusion Detection
28 01 10.51 - Maintenance and Administration of Electronic Access Control and Intrusion Detection
28 01 10.71 - Revisions and Upgrades of Electronic Access Control and Intrusion Detection
28 01 20 - Operation and Maintenance of Electronic Surveillance
28 01 30 - Operation and Maintenance of Electronic Detection and Alarm
28 01 30.51 - Maintenance and Administration of Electronic Detection and Alarm
28 01 30.71 - Revisions and Upgrades of Electronic Detection and Alarm
28 05 26 - Grounding and Bonding for Electronic Safety and Security
28 05 28 - Pathways for Electronic Safety and Security
28 06 10 - Schedules for Electronic Access Control and Intrusion Detection
28 06 20 - Schedules for Electronic Surveillance
28 06 30 - Schedules for Electronic Detection and Alarm
28 06 40 - Schedules for Electronic Monitoring and Control
28 10 00.00.01 - Electronic Access Control and Intrusion Detection
28 13 13 - Access Control Global Applications
28 13 16 - Access Control Systems and Database Management
28 13 19 - Access Control Systems Infrastructure
28 13 26 - Access Control Remote Devices
28 13 33 - Access Control Interfaces
28 13 33.16 - Access Control Interfaces to Access Control Hardware
28 13 33.26 - Access Control Interfaces to Intrusion Detection
28 13 33.33 - Access Control Interfaces to Video Surveillance
28 13 33.36 - Access Control Interfaces to Fire Alarm
28 13 43 - Access Control Identification Management Systems
28 13 53 - Security Access Detection
28 13 53.29 - Security Access Sniffing Equipment
28 16 13 - Intrusion Detection Control, GUI, and Logic Systems
28 16 16 - Intrusion Detection Systems Infrastructure
28 16 19 - Intrusion Detection Remote Devices and Sensors
28 16 33 - Intrusion Detection Interfaces
28 16 33.13 - Intrusion Detection Interfaces to Remote Monitoring
28 16 33.16 - Intrusion Detection Interfaces to Access Control Hardware
28 16 33.23 - Intrusion Detection Interfaces to Access Control System
28 16 33.33 - Intrusion Detection Interfaces to Video Surveillance
28 16 33.36 - Intrusion Detection Interfaces to Fire Alarm
28 16 43 - Perimeter Security Systems
28 16 46 - Intrusion Detection Vehicle Control Systems
28 20 00.00.01 - Electronic Surveillance
28 23 13 - Video Surveillance Control and Management Systems
28 23 16 - Video Surveillance Monitoring and Supervisory Interfaces
28 23 19 - Digital Video Recorders and Analog Recording Devices
28 23 23 - Video Surveillance Systems Infrastructure
28 23 26 - Video Surveillance Remote Positioning Equipment
28 23 29 - Video Surveillance Remote Devices and Sensors
28 26 13 - Electronic Personal Safety Detection Systems
28 26 16 - Electronic Personal Safety Alarm Annunciation and Control Systems
28 26 19 - Electronic Personal Safety Interfaces to Remote Monitoring
28 30 00.00.01 - Electronic Detection and Alarm
28 31 13 - Fire Detection and Alarm Control, GUI, and Logic Systems
28 31 23 - Fire Detection and Alarm Annunciation Panels and Fire Stations
28 31 33 - Fire Detection and Alarm Interfaces
28 31 33.13 - Fire Detection and Alarm Interfaces to Remote Monitoring
28 31 33.16 - Fire Detection and Alarm Interfaces to Access Control Hardware
28 31 33.23 - Fire Detection and Alarm Interfaces to Access Control System
28 31 33.33 - Fire Detection and Alarm Interfaces to Video Surveillance
28 31 33.43 - Fire Detection and Alarm Interfaces to Elevator Control
28 31 53 - Fire Alarm Initiating Devices
28 31 53.23 - Fire Alarm Level Detectors Switches
28 31 53.33 - Fire Alarm Flow Switches
28 31 53.43 - Fire Alarm Pressure Sensors
28 31 63 - Fire Alarm Integrated Audio Visual Evacuation Systems
28 31 63.13 - Fire Alarm Horns and Strobes
28 32 13 - Radiation Detection and Alarm Control, GUI, and Logic Systems
28 32 23 - Radiation Detection and Alarm Integrated Audio Evacuation Systems
28 32 33 - Radiation and Alarm Detection Sensors
28 32 43 - Radiation and Alarm Dosimeters
31 63 29.16 - Cased Drilled Concrete Piers
33 71 36 - Extra-High-Voltage Wiring
33 71 36.13 - Overhead Extra-High-Voltage Wiring
33 71 39 - High-Voltage Wiring
33 71 39.13 - Overhead High-Voltage Wiring
33 71 49 - Medium-Voltage Wiring
33 71 49.13 - Overhead Medium-Voltage Wiring
33 81 23 - Aerial Cable Installation Hardware
33 82 13 - Copper Communications Distribution Cabling
33 82 13.13 - Copper Splicing and Terminations
33 82 23 - Optical Fiber Communications Distribution Cabling
33 82 23.13 - Optical Fiber Splicing and Terminations
33 82 33 - Coaxial Communications Distribution Cabling
33 82 33.13 - Coaxial Splicing and Terminations
34 21 16 - Traction Power Substations
34 21 16.13 - AC Traction Power Substations
34 21 16.16 - DC Traction Power Substations
34 43 23.16 - Airfield Wind Cones
34 54 33 - Passenger Fare Gates
40 95 33.13 - Cabled Process Control Networks
40 95 33.23 - Fiber Optic Process Control Networks
40 95 33.33 - Wireless Process Control Networks
40 95 73 - Process Control Wiring
42 12 23 - Solar Process Heaters
48 12 29 - Nuclear Fuel Electrical Power Plant Turbines
48 14 13 - Solar Energy Collectors
48 14 13.13 - Amorphous Solar Energy Collectors
48 14 13.16 - Plate Cell Solar Energy Collectors
48 14 13.19 - Vacuum Tube Solar Energy Collectors
48 15 13 - Windmills
48 15 16 - Wind Energy Electrical Power Generators
48 18 16 - Hydrogen Control Equipment
48 19 19 - Electrical Power Generation Solar Tracking Equipment
Associations & Memberships
NFIB (National Federation of Independent Businesses)
CBIA (Connecticut Business & Industry Assn.)
BICSI (Building Industry Consulting Service International)
NBFAA (National Burglar & Fire Alarm Assn.)
SBE (Small Business Enterprise)
Preferred Brands
Ademco Security Products
American Standard Heating & Air Conditioning
Avaya Communication Systems
Bogen
Corning
DSC (Digital Security Controls)
Edwards Fire & Security
Fire-Lite Alarms by Honeywell
Kantech
Kohler
Lennox
Maxis
OnSSI
Ortronics
Panasonic
Panduit
Pelco
Philips
Quietside
Silent Knight
Trane
