Packaged controls & manufacturing

We are one of the leading manufacturers of electrical control systems, supplying products nationally and internationally. Our packaged controls and manufacturing products carry the seal of the Underwriters Laboratories (UL) and CE certifications.


  • Motor and motion control
  • Programmable logic control
  • Analytical systems
  • Medium-voltage control racks
  • Pneumatic panels
  • Modular electrical buildings
  • Load bank panels
  • Complete factory automation


  • Data centers and high tech
  • Petrochemical and process chemical
  • Aggregate mining
  • Renewable energy
  • Agriculture
  • Pharmaceutical
  • Water treatment
  • Food packaging
  • Wood products

Industry-leading manufacturing facility

Our manufacturing facility comprises 75,000 square feet of electrical control panel and equipment manufacturing, and 400,000 square feet of PCC, skid and module manufacturing space. This space allows us to offer large and custom-scale production.

Plug-and-play electrical buildings

Our fully integrated electrical power and control distribution buildings house complete electrical facilities in one transportable unit. These units, called Power Control Centers, reduce lead times, field construction costs and logistic limitations.

Connex solutions

Connex units provide a low-cost, structurally sound enclosure for packaging electrical products and equipment.

Learn more

Portable control and power trailers

A portable Power Control Center can be seamlessly moved from one location to the next.

Low voltage

Our inside electrical construction companies have extensive low-voltage experience. We provide new installation as well as maintenance, relocation and modifications to existing systems.

Services and expertise

  • A/V systems
  • Fire alarm
  • HVAC and building automation control
  • Infant alarm
  • Nurse call
  • Security, CCTV and card access
  • Structured cabling and fiber optics
  • Voice-data systems


  • Agriculture
  • Automotive
  • Aviation
  • Casinos and entertainment
  • Central plants, chemical plants and container plants
  • Data centers and high tech
  • Education
  • Health care and pharmaceutical
  • Power generation, pump stations and water facilities

Certified low-voltage professionals

Our certified low-voltage professionals ensure safety and quality for our customers.


Our teams include numerous employees registered and trained through Building Industry Consulting Services International. BICSI provides standards-based design and installation methods for the telecommunications industry.


Our teams also include members of the National Institute for Certification in Engineering Technologies. NICET certifies individuals designing and installing fire alarm systems and other building systems.

Transmission & distribution

MDU Construction Services Group’s transmission and distribution operations are improving infrastructure across the nation. Our expertise ranges from 69kV to 345kV and everything from traditional lifts and helicopters to barges. We have constructed and maintained thousands of miles of overhead and underground distribution line projects for a diverse range of clients.

Services and expertise

We specialize in transmission and distribution construction for electric and natural gas.

  • Aerial electrical systems
  • Wood, steel and lattice configurations
  • Installation and rehabilitation of underground facilities
  • High- and low-pressure natural gas line placement
  • Emergency restoration
  • Fiber optics
  • Switchgear


Safety and training

  • On-the-job safety meetings every morning before work starts and at each change in activities.
  • Constant monitoring for procedure compliance.
  • Routine, documented safety audits.
  • Direct oversight and supervision by safety professionals.
  • Continuous improvement with employee input.
  • Drug-free workplace program.
  • Our journeyman linemen and field supervisors are graduates of the National Joint Apprenticeship and Training Committee Outside Apprenticeship Training program.
  • Initial and ongoing training for equipment operators and ground personnel.
  • Formal classroom training.
  • One-on-one counseling.
  • Continuous improvement with input from all employees.

Emergency restoration

We strive to restore service following outages as quickly and safely as possible to reduce the impact on homes and businesses.

We offer fast mobilization to locations across the continental United States. Thanks to our long-term relationships with large clients and our vast fleet of equipment, we have extensive storm experience in the South and East.


Electrical Transmission & Distribution Strategic Partnership

MDU Construction Services Group is a member of the Electrical Transmission & Distribution Partnership, a nationwide collaboration with OSHA dedicated to reducing injuries and fatalities in the line construction industry.

Many employees from our line construction operations are active participants on the Partnership’s executive and steering committees as well as the task teams responsible for training, collecting data and communication.

Traffic signalization

Signals & lighting

We provide new construction and installation of traffic signals, navigational lighting, street lighting, high mast lighting, fiber optic interconnect installations and smart highway ITS systems.


We perform projects as both a prime and a subcontractor.

  • Traffic signals
  • Navigational lighting
  • Street lighting
  • High mast lighting
  • Fiber optic interconnects
  • Smart highway ITS systems
  • LED conversions
  • Emergency service and maintenance

signals and lighting
signals and lighting


Our team is comprised of certified, trained and experienced signals and lighting technicians.

  • IMSA Work Zone
  • Traffic Signal Level 1, Level 2, Level 3 Field and Bench
  • Fiber optic certified


Our substation expertise starts from the ground up with underground conduit installation and foundation work.


  • Steel structure and bus construction
  • Major equipment installation
  • Power and control cable installation and termination
  • Conductor dead-ending
  • Startup and commissioning


  • New construction
  • Upgrades
  • Large and small clients, including utilities, co-ops and large-scale commercial facilities

Collaborating to meet customer needs

Our substation teams often work together to meet a single customer’s needs in numerous locations. With substation teams across the country and decades of experience building and improving infrastructure, we are uniquely positioned to apply customer specifications to our projects, develop a model project and duplicate our efforts in numerous locations. This allows us to efficiently and consistently deliver results our customers can count on.


Excavation & underground

MDU Construction Services Group’s excavation and underground companies ​​provide a diverse set of services for customers across the country. Our capabilities include natural gas ​and pipeline placement, directional drilling, cable and duct plowing, hydroexcavation or vacuum excavation, and conduit and vault installation.

Civil underground

  • Vault installation and repair
  • Power and communication infrastructure
  • Conduit and innerduct install
  • Concrete and foundations
  • Sidewalk, curb, and gutter
  • Excavation

Directional drilling

  • Faster and safer alternative
  • Installation under waterways
  • State-of-the-art fleet
  • Pull up to 100,000 pounds
  • Install up to 36" pipeline
  • Single and multiple pipe configurations

Vacuum excavation

  • Bore mud removal
  • Small and large pit excavation
  • Utility potholing
  • On-board core saws for hard surfaces
  • Large, state-of-the-art fleet

Natural gas pipeline

  • Main, distribution and service line installations
  • New and conversion services
  • Restoration services
  • Serving utilities, businesses and homes

Grading and paving

  • Asphalt concrete and concrete restoration
  • From potholes to full trench-wide asphalt concrete patches in roadways
  • Road building
  • Site grading
  • Paving

Cable plowing

  • From small drops to large, long-haul cable laying projects
  • Place up to 6" cable/duct
  • Vibratory and static methods
  • Wide range of equipment


We are a nationwide provider of power line and telecommunication wire stringing equipment and related tools.


We offer a full line of equipment to complete any utility or communications construction or maintenance project.

  • Pullers
  • Tensioners
  • Pole and material trailers
  • Reel stands
  • Reel carriers
  • Stringing blocks
  • Reels and breakaways

Parts, tools & accessories

We are a leading provider of powerline construction and telecommunication tools and accessories

  • Aerial buckets
  • Climbing equipment
  • Hand tools
  • Augers, teeth, drills and bits
  • Footwear
  • Lighting
  • Meters and testers
  • Safety equipment


With six stocking locations, including two engineering and manufacturing facilities, we can respond to clients' needs in a moment's notice.

  • Burleson, Texas
  • Dayton, Ohio
  • McDonough, Georgia
  • Phoenix, Arizona
  • Tualatin, Oregon
  • Lawrenceville, Illinois
Angle Block

Custom design and engineering

Our experienced design and engineering team offers custom solutions for our clients and develops new equipment and products. Our patented angle block design offers manpower, equipment and safety benefits.

Renewable energy

MDU Construction Services Group is dedicated to providing renewable, environmentally friendly and energy-efficient solutions that meet our clients’ technology and power requirements.


  • Turnkey services from conception to maintenance
  • Planning
  • Proposals
  • Cost analysis
  • Design
  • Procurement
  • Installation

Solar PV systems

Other renewables

  • Electric vehicle charging stations
  • Energy audits and retrofits
  • Retrofits and tenant improvements
  • Small wind generation
  • Energy storage


Our mechanical team offers an extensive range of services, specializing in mechanical, plumbing, med-gas, fire protection and prefabrication services.

Services and expertise

  • HVAC
  • Plumbing
  • Fabrication
  • Insulation and firestop
  • Service and maintenance
  • Emergency response

Fully automated fabrication facility

Our fully automated fabrication facility helps us complete projects on time and within budget. Our knowledgeable sheet metal team can handle everything from CAD design to fabrication and installation of HVAC systems.

Additionally, we offer prefab on all aspects of plumbing, pipefitting, mechanical piping insulation and HVAC duct insulation. We can quickly and accurately fabricate all components for a job before construction begins.

Industrial turnaround

Our industrial construction teams provide mechanical construction work for capital projects and turnaround projects, as well as electrical construction within industrial facilities.

Services and expertise

We have deep industrial turnaround and maintenance experience across the United States.

  • Turnkey plant turnarounds
  • Planning and scheduling
  • Piping
  • Delta valve installation
  • Process column revamps
  • Specialty welding
  • Turnkey exchanges
  • Coker unit outages
  • FCCU outages


We provide electrical construction for new industrial installations as well as renovations, upgrades and expansions.

  • Airports
  • Automotive manufacturing facilities
  • Cooling towers
  • Food processing
  • Lock and dam installations
  • Manufacturing facilities
  • Material handling and conveyors
  • Pumping stations
  • Rendering and reclamation facilities
  • Substations
  • Solid waste and water waste treatment
  • Warehousing

The nature of industrial turnaround work demands the highest standards in safety. We are dedicated to providing a safe work environment so our employees return home safely at the end of each day. We keep our employees safe through numerous practices and procedures.

  • Constant monitoring for procedure compliance
  • Routine documented safety audits
  • Direct oversight and supervision by safety professionals
  • Continuous improvement with employee input
  • Drug-free workplace program