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Commercial Services

We have extensive experience in commericial plumbing & gas fitting.

Trademark Plumbing & Gasfitting has been involved in numerous commercial plumbing projects. We pride ourselves in providing a complete professional service whether it be an install or maintenance project. We use quality products, equipment and provide the best solution to suit your individual project.


Services include:

  • Backflow prevention testing: This is an annual test that PowerWater requires.  Once tested we can repair if required and send the report directly to PowerWater on your behalf

  • High-pressure blasting of stormwater and sewer pipes

  • Camering and patching sewer and stormwater pipes

  • Design of plumbing systems

  • Poly welding

  • Replacement of water mains

  • Stormwater

  • Commercial kitchens with both water and gas.


Larger commercial projects have included:

  • Health Centre Nuguy Bathurst Island

  • G3 project - Gove

  • Yellow Waters Lodge refurbishment

  • Arnhem Land Progress Aboriginal (ALPA) Corporation stores maintenance

  • Crocosaurus Cove Darwin

  • 8 commercial units in Berrimah


Each project has been completed on time without any lost time injuries.


We also service schools:

  • Karama Primary School

  • Casuarina Senior College

Past schools include:

  • Good Shepherd Lutheran College - Leanyer and Howard Springs campuses

  • Darwin Middle School


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