Darling Downs Tarpaulins | IAGI Approved Installation Contractor | ACASPA Website

About Us

ddt-liners-headquarters-pano-698-x-366DDT Liners’ have been supplying and installing Geomembrane Liners and Covers since 1983.

Based in Toowoomba, Queensland’s “Garden City”, our trained and experienced installer teams are equipped to travel to wherever the work takes them.

DDT Liners’ operations are driven by Quality, Productivity, Safety and Care for the Environment.

Our Quality Management System is Certified and Audited to AS/NZS ISO 9001. So you can be sure you are getting a Quality Product every time.

We are also the only Australian company to hold the Approved Installation Contractor Certification through the International Association of Geosynthetic Installers (IAGI).


You can rely on DDT Liners for:

  • Farm Dam Liners
  • Channel Liners
  • Wastewater Pond Liners (for evaporation)
  • Wastewater Pond Liners (for containment and treatment/re-use etc)
  • Aquaculture Liners
  • Molasses Storage Liners & Covers
  • Landfill Liners & Covers
  • Floating Covers
  • Evaporation Control Covers
  • Reservoir Liners & Covers
  • Contaminated Soil Containment or Isolation Liners & Covers
  • Biogas (Methane) Harvesting Pond Liners & Covers
  • Leachpad Liners
  • HDPE Liners

In fact, a full range of Geomembrane Liners & Covers

for almost any conceivable purpose!


Browse through our website, and feel free to Contact us

to discuss your upcoming project – large or small.