Check the water authority requirement
Send any notice, device make and model, hazard classification if known, and the previous test record. Different devices and authorities can have different testing and reporting requirements.
Sydney Water says medium- and high-hazard containment devices require a licensed plumber with backflow authorisation for testing and commissioning. Check the equivalent requirement for your own area rather than assuming a general plumbing listing is enough.
Compare specialist quotes
Ask whether the quote covers access, isolation, testing, repair parts, retest, paperwork, submission to the water authority and GST. Confirm who will lodge the result and by when.
Good questions. Plain answers.
Can any plumber test a backflow device?
No. Check the applicable water authority requirements and the individual doing the test before booking.
What should I send with my request?
Share the authority notice, device location and model, previous report and deadline if available.
Written by Yamate · Sources checked 29 September 2026. This guide helps you describe and arrange work; the business assesses your property. Artwork is illustrative.
Sydney Water: backflow prevention for plumbers · Sydney Water: search for backflow plumbers
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