WaterFix® Concealed Leaks

We locate and repair hard-to-find leaks

Not all plumbers have the tools and skills to find leaks hidden underground and inside walls. If your water bill shows water use has increased but you can't see a leak, contact WaterFix Concealed Leaks. If there's a concealed leak and we can't find it, the service is free. We'll quote for repairs when we find the leak, but you can get other quotes and use the plumber of your choice.

You may be eligible for a hidden leak allowance
Don't put it off. If a licensed plumber finds and repairs your hidden leak, you can apply for a hidden leak allowance on your bill.

How WaterFix Concealed Leaks works

Our specialist plumbers provide a full range of leak detection and repair services. They'll:

  • check your property for obvious leaks
  • use specialised equipment such as pipe location devices, acoustic listening devices, and techniques such as filling pipes with a safe gas
  • find any concealed leak and mark its location
  • offer a quote to fix the leak or leaks
  • test any repairs you accept
  • remove any rubbish associated with the service.

What's not included in the cost

Our investigation cost does not include:

  • repairing the hidden leak
  • repairing any obvious leaks
  • restoring patterned concrete surfaces, retiling and waterproofing
  • removing any trees.

How quotes and billing work

The total cost will depend on how long it takes to find the leak. As at 1 July 2020, the costs are:

Fees Description


First hour


Each additional half hour


Obvious leak fee (we may charge this fee instead of the first-hour fee if the source of the leak is obvious)

We'll provide a quote for any required repairs, and encourage you to get alternative quotes from other licensed plumbers. All charges, including any repairs you agree to, will be added to your Sydney Water bill. If the total cost is over $400, you can ask to spread the cost over 4 consecutive bills ($44 administration fee applies).

How to book or find out more

Book your appointment today or find out more. Our qualified plumbers are available 7am–6pm Monday to Friday and 8am–4pm on Saturdays (except public holidays). Saturday surcharge applies – more details in the WaterFix Concealed Leaks terms and conditions.