Building Electrical Construction

Our electrical building construction division is the backbone of Carr & Duff. From the building’s utility service to the last receptacle or light fixture, Carr & Duff is able to install all aspects of low, medium and high voltage electrical systems for facility owners, engineers, general contractors and construction managers.

Whether it is new construction out of the ground, additions, renovations or upgrades – we are able to tackle all the electrical needs of the customer with safe, on schedule and at budget service. Contact us for further assistance for our design build, design assist and budgeting capabilities.

Some of the industries we serve:

Airports, Ports & Transportation
Cogeneration & LNG Plants
Commercial & Retail
Data Centers & Mission Critical Facilities
Educational & Institutional Campuses
Entertainment, Gaming & Hospitality
Hospitals, Healthcare & Pharmaceutical Facilities
Industrial & Refinery Facilities
Manufacturing & Distribution Centers
Mid & High Rise Commercial & Residential
Municipal & Public Safety Facilities
Oil & Gas
Water & Wastewater Facilities

Carr & Duff undertakes all scope of work with the same approach, whether the project is small, large or complex. We strive to integrate the newest technologies into our projects and provide our work force with all the necessary resources, tools and equipment. Our success is dependent on the customer’s satisfaction.

Additionally Carr & Duff understands the importance of sustainable construction techniques as well as green and renewable energy initiatives. We have been a part of numerous LEED certified projects, and aim to apply lean construction techniques to help produce less waste as well as create safer and more efficient work sites for our clients and workers.

Highway & Roadway Construction

Our construction team is well equipped for any highway, roadway or elevated structure construction need. From electronic and static message sign construction to streetscapes and computerized traffic control systems – we have the knowledge and experience to get the job done on any type of roadway, bridge or structure project. A partial list of our services we provide includes:

Adaptive Traffic Signal Systems
Bluetooth Wireless Readers
Computerized Traffic Control Systems
Dynamic Message Signs
Fiber Optic Installation
Highway & Municipal Camera Systems
In-pavement Traffic Loops
Intelligent Transportation Systems
Movable Bridge Systems
Pedestrian Walkway Lighting Systems
Radar & Warning Light Systems
Rectangular Rapid Flashing Beacons Systems
Red Light Camera Systems
Roadway Weather Information Systems
Sign Construction
Street Lighting Systems
Tolling Systems
Traffic Signals & Controls
Travel Time Systems
Video Detection System

Carr & Duff is a PennDOT, NJDot, DelDOT and City of Philadelphia approved contractor.

Additionally Carr & Duff provides 24/7 emergency service
[Read More] for traffic and lighting pole knock downs with replacement poles, signals, fixtures, cabinets and equipment in stock.

Lighting Systems

Carr & Duff’s management team and crews are experts when it comes to installing, repairing and assisting with the design of exterior and interior lighting systems. We are very familiar with traditional lighting applications as well as complex installations.

A partial list of our services we provide includes:

Aviation Lighting
Bridge & Structures Lighting
Decorative & Architectural Lighting Systems
Distribution Centers & Warehouse Lighting
FAA & Tower Lighting
High-Mast Lighting
Institutional Lighting
Interior & Commercial Fit-Out
LED New Installations & Retrofits
Navigational Lighting Systems
Parking Lot & Site Lighting
Railway Tunnels
Roadway & Highway Lighting Systems
Theatre Lighting & Controls
Sports & Entertainment Lighting Systems & Controls

Low Voltage & Specialty Systems

Carr & Duff has extensive knowledge of installing, maintaining, upgrading and repairing low voltage and specialty systems including, but not limited to the following:

Access Point Cabling
A/V Systems
Backbone Cabling
Building Automation Controls
Card Security Access Systems
Closed Circuit Television Systems
Fire Alarm Systems
Fiber Optic Cabling & Splicing
Flight Information Systems
Nurse Call Systems
Public Address Systems
SCADA Systems
Security Systems
Structured Cabling
Systems Integration

Maintenance, Repair & Inspection

Our maintenance division is well equipped with the knowledge, training and equipment for servicing any kind of electrical system. From transformers to motor control centers to switchgear and substations – we maintain, repair and inspect them all.

Utilizing the latest technology and training – we are prepared to test any electrical or mechanical system and provide detailed reports of customer owned equipment.

Our services offered but not limited to:

24/7/365 Emergency Response
Circuit Breaker Testing & Maintenance
Cable Fault Locating & Repair Services
Dielectric Fluid Sampling & Analysis
Dust, Clean & Preventative Maintenance of Electrical Equipment
Engineering Assistance with Coordination & Short Circuit Studies
Generator Testing & Inspection
Infrared Thermography
Power Quality Load Testing & Analysis
Switchgear Maintenance, Repair & Inspection
Transformer Maintenance, Repair & Inspection

Medium Voltage Distribution Systems

Carr & Duff provides a wide range of medium voltage distribution system construction services for commercial, industrial, institutional, municipal and utility clients. Additionally we can provide customers with design build or design assist project support.

Our services offered but not limited to:

Aerial Distribution Line Construction
Cable Splicing & Termination
Design Built & Design Assist Services
Direct Bury & Boring Construction
Heavy Hauling, Warehousing & Rigging of Equipment
Riser & Buss Duct Systems
Substation Construction
Switchgear Installations
Transformer Installations
Underground Distribution Systems
Vaults, Manholes & Shelters Installations & Repairs

Overhead & Underground Distribution

Our utility construction division installs, maintains and repairs medium and high voltage electrical systems and apparatus. We construct, repair and maintain aerial and underground distribution lines for utilities, municipalities as well as commercial, institutional and industrial facilities.

Our services offered but not limited to:

34kv Hot Stick Capabilities
Boring & Direct Bury Conduit Installations
Counterpoise Installation
Civil Construction Services
Emergency Service Restoration
Fiber Optic Services
Grounding Resistivity Testing
Line Construction, Rebuilds, Upgrade, Relocation & Inspections
Live Line Maintenance
Re-Conductoring
Secondary Services & Metering
System Reliability & Hardening Improvements

Overhead & Underground Transmission

Our utility construction division installs, maintains and repairs high voltage electrical systems and apparatus. We construct, repair and maintain aerial and underground transmission lines for utilities and transit agencies.

A partial list of our services we provide includes:

Aerial Transmission Line Construction
Energized Services (up to 69kv)
Foundation & Civil Construction Services
OPGW Installation
Monopole Installations
Structure Upgrades
Tower Erection, Reinforcement & Demolition

Solar Construction

Our renewables department installs and maintains solar array systems. We provide turnkey solutions to ground mount, canopy or roof mounted systems.

A partial list of our services we provide includes:

Canopy & Carport Mounted Systems
Civil Construction & Site Work Services
Ground Mount Systems
Maintenance & Inspection
Roof Mounted Systems
Utility Interconnection & Upgrades

Substation Construction

Our project managers, linemen and electricians are experienced in all aspects of both air-insulated and gas-insulated substation design, construction and maintenance. We have the necessary expertise to assemble, install and maintain all substation equipment – including power transformers, circuit breakers, protective relay systems, capacitors and load tap changers.

We can upgrade and retrofit existing facilities, as well as install state-of-the-art equipment at new facilities. We also have the capacity to commission clients’ new substations.

Our extensive capabilities in extending the life of electrical apparatus include power transformers, breakers, and capacitors. We can conduct protective device coordination studies to help clients review electrical systems and ensure that sophisticated and costly electrical equipment is protected. We also provide a range of maintenance and installation services for switchgear applications in industrial and commercial facilities.

Our services offered but not limited to:

Apparatus Installation, Maintenance & Testing
Battery Bank Installation, Testing & Maintenance
Buswork Installations, Upgrades & Demolition
Civil Construction & Site Work
Concrete & Drilled Pier Foundations
Control Panel Fabrication, Installation & Wiring
General Contractor & Project Management Services
Heavy Hauling & Warehousing
Project & Construction Management
Programmable Logic Controller Installation
Relay & Controls Wiring
Rigging of Equipment
Substation Construction, Rebuilds & Upgrades up to 138 kV
Substation Testing & Commissioning Services
Switchgear Maintenance, Replacement & Testing
Transformer Retro-Fit Retro-Fill Services

Transit Construction

Carr & Duff has an extensive background in completing complex mass transit construction projects. Carr & Duff provides a wide variety of electrical, communication and civil construction services for the all facets of the mass transportation industry.

A partial list of our services we provide includes:

Automatic Train Control Systems
Block Signaling
Catenary Systems
Civil Construction & Site Work Services
DC Power Rectifiers
Design Built & Design Assist
General Contractor & Project Management Services
Mainline & Yard Power Construction
Passenger Stations Construction
Rail Yard Facilities Construction
Signal Systems & Cabling
Traction Power Substations & Cabling
Wayside & Control Office Communication Systems

Wireless Communications

Our wireless communications division installs a variety of cellular site, cable antenna systems, as well as fiber optic cabling and testing. We work closely with the design and engineering aspects of all types of communication projects we are involved with. Our crews are capable and prepared to tackle any communications project including inspection, repair and decommissioning of cell sites.