Leak detection in Canberra: Icon Water's undetected leak adjustment

Icon Water does not refund a share of the lost water the way Sydney Water, SA Water, Water Corporation or the Melbourne retailers do. It compares your bill with the same period a year earlier, adjusts the increase up to $2,500, and bills whatever is left at its first-tier price. That makes last year’s bill the most important document in a Canberra leak claim, and it means a household whose usage changed for other reasons should expect questions.

How the undetected leak adjustment works

The Tier 1 rule matters as much as the cap. A large leak can push a quarter’s usage into the higher price tier; recalculating the remainder at Tier 1 removes that step-up even where the adjustment itself has run out (Icon Water, Adjustment for residential undetected leak). The page read for this site does not state an application deadline, so ask Icon Water when you lodge rather than assume one.

Because the comparison is with the same period a year earlier, anything else that changed your usage muddies it: a new household member, a pool filled for the first time, a garden put in, or a property you did not own last year. None of these are listed as exclusions on the page, but they are the reasons a comparison may not show the leak cleanly. Keep a note of them for the application.

What “undetected” means here

Icon Water’s test is two-sided. The leak must be one that could not be found by looking, and there must have been no visible sign of water loss, so that you could not reasonably have found it before the account arrived. A dripping tap fails the first half; a patch of soggy lawn over the supply line arguably fails the second. A pipe under a slab, a cracked supply line under a driveway, or a leak inside a wall cavity that has not yet marked the plaster are the kinds of case the definition describes.

The plumber’s statement does most of the work. Icon Water asks for four things in it:

1. the date the leak was found and the date it was repaired;
2. how it was detected — acoustic, thermal, tracer gas, isolating sections;
3. the nature and location of the leak; and
4. where the water was escaping to.

The last item is the one people forget to ask for. Water escaping into the ground under a slab supports “no visible sign”; water escaping into a wall that later stained the plaster is a different story, and the date the stain appeared becomes relevant. Ask the plumber to write the statement with those four headings before they leave.

Icon Water’s side, yours, and the frost

Icon Water owns the connection from the main to the meter where the isolation valve is within one metre of the boundary; beyond that it is responsible only up to the boundary. Everything on the house side of the meter is the homeowner’s (Icon Water, Domestic meter installations (May 2024)). So a leak at the meter itself, or before it, is a fault to report to Icon Water; a leak after it is yours to find, pay a plumber for, and then claim the adjustment on.

Frost is the Canberra-specific risk. The Bureau of Meteorology’s Canberra Airport station averages 59.7 days a year at or below zero, most of them in June, July and August (Bureau of Meteorology, climate statistics for Canberra Airport (070351)). Icon Water’s own meter document says excessive heat, cold or physical damage can break the meter face and cause a leak. A meter or exposed pipe that cracks on a frosty night can leak for days before anyone notices, and the first sign may be the bill. The practical step is the cheap one: lag exposed pipes and the meter riser before winter, and read the meter after the first hard frost.

hipages publishes leak detection at $168 to $400 nationally, indicative only; no Canberra-specific price could be read. The adjustment does not cover the plumber, so that cost sits with you whatever Icon Water decides.

Units, rentals and the damage itself

In a unit. The supply pipe and the meter may serve the whole building, and in a unit titles scheme the owners corporation must insure the buildings against, among other things, the bursting, leaking and overflowing of water pipes (Unit Titles (Management) Act 2011 (ACT) s 100(1)(d)). If the leak is in a shared pipe, the first call is the strata manager, and the water bill may be the owners corporation’s too.

In a rental. The ACT standard residential tenancy terms list a burst water service and a serious roof leak among the urgent repairs (Residential Tenancies Act 1997 (ACT) sch 1, cl 60). A hidden leak that is costing the tenant water is something to report in writing straight away; who pays the extra usage depends on the tenancy agreement and how water is charged, so check the agreement before assuming.

If it has already damaged the house. A leak that has soaked a slab, a subfloor or a wall is a water damage question as well as a billing one. The escape of water can be a listed event in standard home cover (Insurance Contracts Regulations 2017 (Cth) reg 19(1)(a)(vi)), while the failed pipe itself is often argued under the wear and tear exclusion (Insurance Contracts Regulations 2017 (Cth) reg 19(2)(b)). Keep the failed section of pipe and the plumber’s statement; the same document supports both the Icon Water application and an insurance claim.

The national leak guide compares every utility’s scheme. The Canberra page covers drying and costs, and mould removal in Canberra covers what a slow leak leaves behind in a cold, closed-up house.

Common questions