Water Main Repairs Wellington

Every Wellington home on town water has a private supply pipe: the buried line from the toby, normally in a small plastic box near the front boundary, up the section and into the house. On a hill section it can be a long run, climbing steps or a bank, and it is usually the one pipe nobody thinks about until a patch of ground stays wet, a path starts weeping or the pressure fades for no obvious reason.

We repair and replace these pipes across the city, the Hutt Valley, Porirua and the Kāpiti Coast. Some jobs are a single failed joiner dug out and replaced. Others are a complete new line, pulled through under a drive or up a bank so the surface stays as it is. Either way the price is fixed before we start.

Pricing: quotes are free, and every job gets a fixed price before we start, so there are no surprises on the invoice.

Water Main Repairs Jobs We Handle Across Wellington

• Main water line repair
• Water main leak
• Water main replacement
• Leaking water pipe under driveway
• Toby to house pipe replacement
• Water service pipe moling

Who owns which part of the pipe

In Wellington City, Lower Hutt, Upper Hutt and Porirua, the water network has been run by Tiaki Wai, formerly Wellington Water, since 1 July 2026. Under the Wellington City water bylaw, the service pipe from the main to the point of supply belongs to the network, and the supply pipe from the point of supply into the property belongs to the owner. The toby is generally set about 450 mm inside the boundary, in the berm where possible. Tiaki Wai's own advice is that leaks on your property are the owner's to repair, using a registered plumber.

On the Kāpiti Coast, Kāpiti Coast District Council runs water in house. Homes there are metered, and the toby and meter usually sit together in a box with a blue lid outside the property. The same principle applies: the pipe on your side of that box is yours.

Signs your supply pipe is leaking

Most of metropolitan Wellington is unmetered, so a leak on your supply pipe will not usually show up as a big water bill. That means it can run for months. Look out for:

• A strip of lawn or garden that stays soft or green along the line from the street
• Water seeping from a crack in a path, steps or driveway
• Damp ground or trickling water at the base of a retaining wall
• Pressure that has dropped at every tap, not just one
• The sound of running water at the toby when everything is off
• On the Kāpiti Coast, a meter reading or bill far higher than normal

How It Works

Why it matters on a Wellington section

Tiaki Wai reports that average water loss across its network was 37% in 2025/26, covering public and private leaks, and it asks residents to have leaks on their own property fixed. There is a practical reason too. On hillside sections in places like Karori, Brooklyn and Ngaio, water leaking into a bank or behind a retaining wall can saturate the ground, and saturated soil and older cut and fill slopes were linked to many of the slips in Wellington's very wet winter of 2022.

On the flat, soft ground of Petone, Lyall Bay and the Kilbirnie flats can move in a big earthquake, and buried pipes can be strained or pulled apart at the joints. If you notice wet ground after a quake, it is worth having the line checked.

Old pipe we replace

What is in the ground depends on when the house was connected. Villas and workers' cottages in Newtown, Mt Victoria and Aro Valley were often supplied through galvanised steel, which rusts from the inside, narrows and eventually pinholes. Many houses built in the 1970s and 1980s, the era of much of Churton Park and Whitby, were connected with grey or black polybutylene, and its joiners are a frequent failure point. Older black alkathene on long rear sites splits at fittings and where roots have squeezed it.

When we cut out a failed section, we check the pipe on either side. If it is brittle or corroded, patching one spot tends to move the next leak a metre along, so we may recommend replacing the whole run in modern polyethylene. If the pipes inside the house are just as tired, our repiping team can quote both together.

Repair, replace or mole a new line

Once the fault is found there are three usual approaches. A spot repair means one hole at the leak, the damaged section cut out and new pipe joined in. A trenched replacement suits open lawns and gardens that are easy to reinstate. Moling drives a tool underground between two pits and pulls the new pipe through behind it, so the drive, paving or planting between them stays untouched.

Steep sites change the plan. A line that climbs steps or runs along a retaining wall may be best replaced on a new route, and where there is no vehicle access, gear and pipe have to be carried in. We locate power, gas, drains and stormwater before choosing a route, and on banks we make sure backfill and drainage are left so water is not channelled into the slope.

What affects the cost

Every water main job gets a free quote, because the length of pipe and what sits above it vary so much. The price depends on:

• A single joint repair or a full new line from toby to house
• Surface over the pipe: lawn, garden, concrete, steps or pavers
• Slope, access and how far gear has to be carried
• Length of the run, which can be long on hill and rear sites
• Whether moling is possible or the line must be trenched
• Reinstatement of concrete, paths and planting

Why Choose Cheeky's Plumbers for Water Main Repairs

Water Main Repairs FAQs

Water Main Repairs Across Wellington

Our water main repairs team works in every Wellington suburb. Find your local plumbers:

Water Main Repairs Guides

• Who Is Responsible for Water and Sewer Pipes on a Wellington Property?
• Tiaki Wai Explained: What Changed for Wellington Homeowners in 2026

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