Septic tank installation sydney

Expert Septic Tank Installation in Sydney: Professional, compliant, and reliable. Our team specialises in efficient installations, ensuring your system meets local regulations. Get straightforward service from planning to completion.

custom fitout

Based in dural

end to end service

Licensed Plumbers

wastewater treatment system installation services

We service the following locations for septic tank installations:

  • Dural.
  • Glenorie.
  • Annangrove.
  • Maroota.
  • Kenthurst areas.
  • Castle Hill.
  • Hornsby.
  • Sydney’s North West.
  • Cherrybrook.
  • Sydney’s North Shore.
  • Northern Beaches.

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PR Plumbing and Drainage

Septic Tank installation

A septic tank system is an underground wastewater treatment system that is designed to treat and dispose of household sewage. It consists of two primary components: the septic tank and the drainfield. The septic tank is a watertight container that holds wastewater from your home long enough to allow solids to settle to the bottom and oils and grease to float to the top. The remaining liquid, or effluent, flows out of the tank and into the drainfield, where it is naturally treated by the soil.
How Septic Tank Installations Work

Choosing the right Septic Tank for your property

When it comes to septic tank installation, choosing the right tank is essential. There are a variety of factors to consider, including the size of your household, the soil type on your property, and local regulations. At PR Plumbing, we work closely with our clients to determine the best septic tank for their needs.

The installation process

  1. Site Evaluation: Our team will evaluate your property to determine the best location for your septic tank system. We’ll take into account factors like soil type, distance from the house, and local regulations.

  2. Excavation: Once the site is determined, we’ll excavate the area to create a hole for the septic tank.

  3. Tank Installation: The septic tank is carefully placed into the hole and levelled to ensure proper function.

  4. Pipe Installation: Our team will install pipes that connect your home to the septic tank, as well as pipes that connect the tank to the drain field.

  5. Backfilling: After the pipes are installed and connected, the hole is filled back in with soil.

  6. Final Inspection: We will conduct a final inspection to ensure that everything is working properly.


Proper maintenance and care are essential for keeping your septic tank system functioning properly. This includes regular inspections, pumping, and cleaning. At PR Plumbing, we offer a variety of maintenance and repair services to ensure that your septic tank system is always functioning at its best.

How much does a Septic Tank installation cost?

This is a difficult question to answer as it depends on the size and location of your home. The average cost for a Septic Tank Installation for a four bedroom home is between $8,000 – $15,000 and could extend upwards of $25,000 depending on the nature of the project. 

There are many factors involved in pricing Septic Tank installation. These include

  1. The task at hand. Do you plan on installing a new Septic Tank or repairing an old one?
  2. The size of the tank. Septic tanks take in the wastewater from dishwashers, bathrooms and washing machines. All the water drains into one tank and must be large enough for your needs. 
  3. The type of tank. This will depend on your house size, land size, soil type, local regulations and more. Septic tanks could be conventional systems, recirculating sand filter system, aerobic treatment unit, and drip distribution system. It’s important to understand the difference and cater for your needs. 
  4. Tank material. You can either choose between a concrete septic tank or a Polyethylene tank
  5. Location. Above ground septic tanks can cost less expensive but maintenance will more more expensive than underground systems. 

Get in touch with PR Plumbing and Drainage for a free Septic Tank System installation quote on 0430 490 703. We are here to help you understand what you need.