Sewer Main Renewals - Term Contract 2026-2028

GWMWater invites suitably qualified and experienced contractors to submit tenders for the Sewer Main Renewals – Term Contract 2026–2028.

This contract comprises the renewal of gravity sewer mains through trenchless relining, delivered under an initial one-year term, with the option for two additional one-year extensions (1 + 1 + 1) at GWMWater’s discretion. Works will be undertaken across GWMWater’s operational region.

The principal activities under this contract include:

• Relining of gravity sewer mains, predominantly 150 mm, with some 100 mm and 225 mm diameters.
• Cleaning and preparation of mains prior to relining.
• Pre- and post-relining CCTV inspections, including reporting to GWMWater standards.
• Reinstatement and sealing of household connection branches (HCBs) to ensure system integrity.
• Supply of all materials, products, plant, and labour required for the completion of works.
• Customer notification, including timely communication with affected residents and businesses before, during, and after works, in accordance with GWMWater requirements.

GWMWater reserves the right to accept tenders in part.

The lowest or any tender not necessarily accepted.