Your specialty contracting services provider.

MDU Construction Services Group ("CSG") provides industry-leading utility construction services with a focus on safety. We are committed to bringing the very best in construction services.
CSG operates in four lines of business:
  • Electric & Natural Gas Transmission & Distribution, including Excavation and Communication, and Traffic & Signalization
  • Commercial & Industrial Electrical, Mechanical, and Fire Suppression Services
  • Industrial Services
  • Equipment Manufacturing, Rentals & Sales
Fire Protection
Electric Low Voltage
Refining, Maintenance & Construction
Electrical Manufacturing & Supply
Traffic Signals, Streetlighting & ITS
Transmission, Distribution, Substation
Civil, Excavation & Pipeline
Equipment Rental & Sales
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MDU Construction Services Group, Inc. has a large presence throughout the United States. With offices in fourteen states and forty-four authorized states of operation, we have the capability to get any job done.

MDU Construction Service Safety Photo


Our people are what makes our company a success. We value the health and safety of our workforce and strive to maintain an injury-free workplace.
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We have completed a wide array of work across the country. Our resume includes renewable utility grade solar, transmission (including 345 kv circuits), power and natural gas distribution, substations, fire suppression & protection, and more...