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Leader In FRP

Denali Incorporated acquired by NOV

We are proud to announce that Denali Incorporated has been acquired by National Oilwell Varco (NOV). With this acquisition, the Denali Incorporated brands of Belco, Containment Solutions, Ershigs, Fabricated Plastics, and Fibra will join the Fiber Glass Systems business unit within NOV

Fiber Glass Systems is a leader in composite piping systems, fittings, and structures for the oil and gas, chemical, marine, offshore, fuel handling, and mining industries.  This acquisition provides many new and exciting opportunities within our markets.

During this acquisition our day-to-day business will continue as usual and your current Ershigs contacts will remain the same. Combining expertise in manufacturing, knowledge of fiberglass/composites, and a passion to serve will allow us to rise to the top and create the best product and service offerings to our customers.

 The brands and products you recognize, the service you trust, blended into one — We are better together!

The industry leader in Fiberglass Reinforced Plastics (FRP) since 1960, Ershigs is recognized for delivering the highest quality of corrosion resistant products and services worldwide. Maintaining a long history of unmatched products and services, Ershigs is distinguished by expert design/engineering, quality manufacturing and professional installation of custom products. And, the service doesn’t end there – we follow up after project completion and deliver turnkey solutions for your maintenance needs & future modifications. Save time, save money – get the job done by the true industry professionals.

As technology changes, Ershigs continues to innovate and lead the pack in industrial FRP product design, manufacturing and installation. The scale of products & projects can be massive and manufacturing can be arranged on site or large scale modules & equipment can be barged or shipped to your facility, as needed. We go where you need us.


With the start of every project, Ershigs develops a comprehensive plan, including: project assessment, process engineering, systems engineering, design, analysis, and quality assurance testing.

Superior Design, Systems & Performance Start with Expert Engineering

Ershigs works in close collaboration with your team – your staff, consulting architects and engineers. Your project will benefit from the expert collaboration, resulting in superior design, systems and performance.

For more than three decades, Ershigs has earned a reputation for engineering excellence, technical leadership and is the industry leader in Fiberglass Reinforced Plastics (FRP).

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From product engineering, development and fabrication, Ershigs is your single-source, turnkey solution and contractor for construction projects of any size – specializing in large scale projects. Ershigs’ construction crews are supported by a network of manufacturing plants and specializes in customized on-site manufacturing.

Ershigs – Your Single-source, Turnkey Contractor

As your contractor, Ershigs takes full responsibility for each project and we stand behind our warranty.

Ershigs provides complete systems installation, including:

  • Civil, mechanical, and structural work
  • Ancillary trades
  • Sub-contractor services
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Once your project is complete, Ershigs remains your on-going partner for technical support, upkeep, and upgrades for your composite system. Scheduled maintenance is an essential part of the plan for promoting optimum efficiency for you. It results in reduced down time and prevents production interruptions.

The Project is Complete – The Partnership Continues

Plant improvements may be most cost effective when conducted concurrently with scheduled maintenance – Ershigs develops maintenance plans according to your specific needs.

Maintenance Projects include inspections, upkeep and periodic upgrades and improvements to your composite systems. Ershigs is responsive and works in partnership with your team to achieve the special needs of each industry and company it serves.

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Your turnkey, single-source solution for design, manufacturing, construction and installation of FRP corrosion-resistant products