Sewerage Treatment Plant Installations

Send Enquiry

Septic and Wastewater Solutions for Properties Without Mains Sewer Connections

If you’re building or living on a property without mains sewer, a properly installed and maintained sewerage treatment system isn’t just a good idea, it’s a must. Whether you’re on a rural block, bushland property or coastal site, we can help you get set up with the right wastewater solution from the start.

At All Done Plumbing & Drainage, we specialise in sewerage treatment plant (STP) installations across Bass Coast, South Gippsland and King Island. We handle the full process from design and approvals through to excavation, installation and long-term servicing.

We install sewerage systems for:

  • New builds on blocks with no sewer connection

  • Off-grid homes and holiday houses

  • Replacement of old or failed septic systems

  • Upgrades to more efficient treatment setups

  • Compliance with council and environmental health requirements

We work with both traditional septic tanks and modern advanced treatment systems, depending on your site, usage and local regulations.

What’s involved in installing a treatment plant?

  • Site assessment and consultation

  • System selection based on property size, soil type and usage

  • Council liaison and permit applications

  • Excavation and base preparation

  • Installation and connection of tanks and dispersal systems

  • Final testing, commissioning and compliance certification

We’re familiar with all the major treatment systems on the market and can advise you on what will work best long-term, including systems with irrigation dispersal, energy-saving units, and those suited to tricky or compact blocks.

Why local knowledge matters

Not every property is the same and out here, we see it all. Sandy soils, clay-heavy sites, high water tables, steep driveways, or limited access for machines. We’ve installed systems in all kinds of conditions and will find the safest, most effective option for your block.

We also know what local councils are looking for when it comes to septic and treatment plant approvals. We’ll guide you through the paperwork and ensure the install is compliant and built to code.

Why choose All Done Plumbing for your sewerage system install?

  • Fully licensed for wastewater treatment system installation and servicing

  • Local experience across Inverloch, Bass Coast, South Gippsland and King Island

  • End-to-end service including design, install and post-install support

  • Knowledge of council requirements and environmental compliance

  • Honest advice on what works, not just what’s easiest to sell

If you’re not sure what system you need or where to start, we’re happy to talk you through it.

From family homes to off-grid builds, we’ll make sure your sewerage system is safe, efficient and built to last.

Give us a call to discuss your property or request a quote.

Contact Us: 0488 253 663

  • Most septic systems should be inspected regularly and pumped out every 3–5 years depending on household size and usage. Aerated wastewater treatment plants also require scheduled servicing to keep them compliant and running properly.

  • Common signs include slow drains, sewage smells, soggy ground near the system, overflowing trenches, unusually green grass around the disposal area or wastewater backing up into the house. If you notice any of these issues, it’s best to have the system inspected early before bigger damage occurs.

  • Yes. All onsite wastewater systems in Victoria require council approval and permits before installation. We help manage the process, including site inspections, soil assessments and system recommendations to ensure everything meets local compliance requirements.

  • Yes. We supply and install septic systems and wastewater treatment plants for new homes, renovations, rural properties and off-grid builds across Inverloch, Bass Coast, South Gippsland and surrounding areas.