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Your Trusted Partner for Underground Infrastructure Solutions
Hoffman Utah is a leading provider of underground infrastructure solutions dedicated to protecting communities through industry-leading services and technologies. With a nationwide network of locations, we deliver responsive, quality service to utilities, municipalities, contractors, and engineering firms. Our commitment to safety, integrity, and excellence drives every project, ensuring the protection of people, property, and the environment. We invest in employee development, leveraging advanced technologies like cross bore inspection and vacuum excavation to extend infrastructure lifespan and prevent damage. Our tailored approach addresses unique client needs, offering precise utility locating, subsurface engineering, and trenchless rehabilitation solutions. By prioritizing open communication and prompt response, we build lasting partnerships that deliver exceptional results.

Our expertise spans pipeline integrity, asset management, regulatory compliance, and emergency response, serving diverse sectors including gas, telecom/fiber, electrical, and water/wastewater utilities. Through innovation and a can-do attitude, we minimize project risks, reduce costs, and ensure operational efficiency. Our subsidiariesAccumark, Benchmark, and Tri-State Utilitiesspecialize in locating, damage prevention, and pipeline rehabilitation, respectively. As an employer, we offer competitive compensation and career growth opportunities, recognizing our workforce as our most valuable asset. Partnering with us means accessing unmatched expertise, cutting-edge technology, and a relentless focus on safety and customer satisfaction.
Services
Utility Locating Subsurface Utility Engineering Vacuum Excavation Pipeline Inspection Damage Prevention Cross Bore Prevention Trenchless Rehabilitation Emergency Response Asset Management Regulatory Compliance
Highlights and features
  • We offer nationwide coverage with localized service for prompt response.
  • Our advanced technologies ensure precise utility locating and subsurface mapping.
  • We prioritize safety through cross bore prevention and emergency response expertise.
  • Tailored solutions meet unique client goals without unnecessary delays.
  • Subsidiaries provide specialized services in locating, rehabilitation, and compliance.
Services
Utility Locating
Our utility locating services use advanced technologies to identify and map subsurface infrastructure, preventing damage during excavation. We serve municipalities, utilities, and contractors by ensuring safety and compliance. Our precise locating reduces project risks and costs while protecting critical infrastructure.
Subsurface Utility Engineering
Subsurface Utility Engineering (SUE) combines designating, mapping, and vacuum excavation to verify underground utilities. This service minimizes conflicts during construction projects, ensuring accurate data for engineers and contractors. Our SUE solutions enhance project planning and risk mitigation.
Vacuum Excavation
Hydrovac and air-vacuum systems safely expose underground utilities without mechanical digging. This method prevents damage to hazardous material lines and works in challenging soil conditions. Our fleet supports projects of all sizes nationwide.
Pipeline Inspection
We provide comprehensive pipeline inspections for gas, water, and wastewater utilities. Using trenchless technologies, we assess pipeline condition, identify cross bores, and ensure regulatory compliance. Our services extend infrastructure lifespan and prevent safety risks.
Damage Prevention
Our damage prevention programs reduce excavation-related incidents through precise locating and Single Source locating models. We offer 811 services, private utility locating, and emergency response to protect infrastructure and ensure project continuity.
Questions
What services does National Underground Group offer?
We specialize in utility locating, subsurface engineering, vacuum excavation, pipeline inspection, and damage prevention for utilities, municipalities, and contractors.
Do you provide emergency response services?
Yes, we offer emergency response for pipeline integrity, cross bore prevention, and regulatory compliance across multiple utility sectors.
Which areas do you serve?
We operate nationwide with localized service in California, Virginia, Maryland, North Carolina, and Ohio.
How do your vacuum excavation services work?
We use hydrovac and air-vacuum systems to safely expose utilities without mechanical digging, suitable for all soil types and hazardous environments.
What industries do you support?
We serve gas, telecom/fiber, electrical, water/wastewater utilities, engineering firms, contractors, and government agencies with tailored infrastructure solutions.