How much does backflow prevention testing cost in Australia?
Backflow Prevention Testing typically costs between $90 and $300 (typical job) in Australia as of 2026. The exact price depends on the size of the job, access, materials, and where you are. Prices reviewed June 2026.
What affects the price
- Size and complexity of the job
- Ease of access and site conditions
- Materials and fittings chosen
- Whether it's an emergency or after-hours call-out
- Your location, metro vs regional rates differ
Cost by state
| State | Indicative range |
|---|---|
| New South Wales | $105–$345 |
| Victoria | $100–$335 |
| Queensland | $95–$315 |
| Western Australia | $100–$330 |
| South Australia | $90–$295 |
| Tasmania | $90–$305 |
| Northern Territory | $100–$335 |
| Australian Capital Territory | $95–$325 |
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Get free quotesFAQs
How often does a backflow device need testing?
Testable backflow devices must be tested annually by a licensed plumber and the results submitted to your local water authority in your area, your state.
How much does backflow prevention testing cost?
As a guide, backflow prevention testing typically ranges from $90 to $300 for a typical job. The final price depends on the size of the job, access, and materials. The fastest way to know is to get a few free quotes.
How many businesses will contact me?
Up to 5 local businesses can pick up your request. You compare their quotes and choose, there's no obligation to go ahead with any of them.
Is it free to get quotes?
Yes. Getting quotes through Blue Collar News Services is completely free for you. The businesses pay us; you never do.