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TFNL is certified to ISO 9001.

The key words in our Quality Management System are Culture, Knowledge, Responsibilities, Control, and Traceability.

Trevi utilizes Quality Plan to clearly state the following:

  • Customer requirements
  • Working Methods
  • Materials, Equipment and Personnel
  • Tolerances, Inspections and Tests
  • Quality Checks and Reports


  • TFNL operates in the deep foundations sector in the Nigerian market.
  • TFNL delivers geotechnical services and products to standard requirements.
  • TFNL engages and trains professionals with skills through integrated processes and technologies to deliver final products.
  • TFNL is committed in continual improvement.


TFNL’s Quality objectives:

  • To deliver timely and qualitative geotechnical products and services.
  • To deliver products and services that are monitored/controlled, documented and communicated.
  • To follow required standards and specifications as contained in the contracts.