Septic Tank Prices in Perth

5 services from $255 · Perth, Western Australia

Septic Tank Prices in Perth

Prices include GST. Installation prices vary significantly with soil conditions, site access, tank size, and council requirements. Always obtain a site-specific quote from a licensed plumber or septic installer.

Filter by price range$255 – $14,500
$255$14,500
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Septic tank prices in Perth

Septic Tank Tips for Perth

Perth's sandy soils provide generally good drainage for absorption trenches but the shallow water table near the coast can cause issues — always check groundwater depth before installation

Water Corporation has been extending the sewer network in Perth's outer suburbs — check whether your property is scheduled for sewer connection before investing in major septic upgrades

WA Health Department requires all septic installations to be approved by the local government and installed by a licensed plumber — ensure quotes include permit fees

Key Services at a Glance — Perth

Pump-Out

$370

avg · $255$585

Septic tank pump-out

New Installation

$8,700

avg · $4,850$14,500

Complete septic system

Septic tank pump-out in Perth starts from $255. Pump-out services average $370 in Perth. Prices include GST. Installation prices vary significantly with soil conditions, site access, tank size, and council requirements. Always obtain a site-specific quote from a licensed plumber or septic installer.

Septic tank services in Perth include pump-outs, new installations, system replacements, septic to sewer conversions, compliance inspections, absorption trench repairs, aerated treatment system installations, and effluent pump replacements. New installations in Perth average $8,700.

A new septic system in Perth costs $4,850–$14,500, averaging $8,700. Prices include GST. Installation prices vary significantly with soil conditions, site access, tank size, and council requirements. Always obtain a site-specific quote from a licensed plumber or septic installer.

Check online reviews on Google and local trade directories. Verify the contractor holds a current plumber's licence and is licensed to handle liquid waste in your state or territory. For new installations, confirm the contractor is familiar with your local council's approval process. Get at least two quotes for major work. Ask about their experience with your soil type and any council-specific requirements in Perth.