Water Main Repair near you

Start every water leak by working out which side of the meter it is on, because that single question decides who you call and who pays. Authorities publish the split in plain terms. Sydney Water says it is responsible for its pipes, which it defines as all the pipes, channels and structures that provide services to you, and for the water meter on your property, while you are responsible for maintaining the pipes and fittings on your property up to where they connect to its networks. Its own advice is that if the leak is in your private water pipes you call a licensed plumber, and if you think the leak is in one of its pipes you call the authority instead.

The practical test is usually the meter. Shut every tap, cistern and water-using appliance in the house, then watch the meter: movement means water is being lost downstream of the meter and the problem is yours. No movement, with water still surfacing near the street or the footpath, points at the authority's side. Report it rather than paying someone to excavate an asset that is not yours to dig up.

Work on a water service is licensed plumbing work. New South Wales requires a licence or certificate for any plumbing, draining or gasfitting work regardless of the cost of the work and regardless of whether the property is residential, commercial or industrial. Western Australia licenses plumbing through the Plumbers Licensing Board and makes licensed plumbing contractors responsible for all plumbing work they perform for six years from the time the work is completed, with major plumbing work requiring a notice of intention at least 24 hours before it starts, except for emergency work, and a certificate of compliance within five working days; emergency work allows both to be lodged together within five working days.

Victoria requires a compliance certificate where the total value of the work including materials, appliances, labour and GST exceeds a set value in the plumbing regulations, which most water service replacements will pass comfortably, and only a licensed plumber may issue it. Queensland's notifiable work regime requires registration with the QBCC within ten business days of the invoice being issued for the work it covers. Whichever state you are in, the certificate is the evidence that a licensed person did the work, and it should be part of the quoted price rather than an afterthought.

Excavation carries its own duties. Water, sewer, gas, electricity and telecommunications assets share the same verge and the same front yards, and authorities are explicit that working over or close to their assets without permission is an offence: South East Water, for example, states that under the Water Act 1989 its approval is needed to build over its easements or within one metre of water supply, sewerage or recycled water assets. Before You Dig Australia exists precisely so that a contractor can obtain infrastructure information for a planned work site from one place. Ask your plumber whether they have lodged an enquiry before they dig.

Pressure is where many repeat failures begin. The Code sets both ends of the range: a cold water service must deliver a working pressure of not less than 50 kPa at the discharge points, and a static pressure within the building of not more than 500 kPa. Supply pressure varies with elevation and with the authority's network, so a house at the bottom of a hill can sit well above what its tapware, flexible connectors and appliance solenoids were designed for. A pressure limiting valve is the usual remedy, and it is a serviceable item rather than a fit-and-forget one.

Velocity matters too. The Code requires cold water service pipework to ensure the water velocity does not exceed 3 metres per second for more than 1% of the time that water is required during the annual peak hour, which is a design constraint on pipe sizing. Undersized pipework moves water fast, which is noisy, erosive at fittings and unforgiving when a valve closes quickly.

If a water service is being repaired or replaced, that is the right moment to measure incoming pressure and to check the sizing of the run rather than to reproduce what was there. The alternative is paying for the same failure again in a few years, in the same trench.

The Code's cross-connection control provisions require that a hazard be isolated from the drinking water service by an appropriate backflow prevention device selected and installed in accordance with Section 4 of AS/NZS 3500.1, and a hazard exists wherever water or contaminants could enter a drinking water service or supply through any potential cross-connection. In practice this is handled at the boundary. Sydney Water's guidance to plumbers is that for sites with a low hazard rating its 20 mm and 25 mm water meters already contain an integral backflow prevention device, while a property whose meter is larger than 25 mm needs a containment device separate to the meter. A licensed plumber must assess each site, install a device matching the property's hazard rating, and tell the owner if the device needs to be tested each year.

Ordinary maintenance is less technical and more habitual. Read the meter occasionally; know where the main tap is and keep it operable; watch for wet ground along the service route after a dry week; and treat a sudden change in pressure as information rather than an inconvenience. If your property has a testable device, keep the test reports, because the obligation to have it tested and reported sits with the property owner rather than with whoever installed it.