Utility Installation

Power, water, gas and comms — connected, underground

Since 2015Own locators, hydro-vac & diggersAuckland · Franklin · North Waikato

Start here

So you need power, water, gas or comms brought to a property — or a main replaced.

A new build, a shed or sleepout, a bore pump, a subdivision — or a water main that’s failing, undersized or doesn’t exist yet. Somewhere a service has to get from the boundary to where you need it, underground.

We check what’s already buried, trench or drill the route, lay the cable or pipe, make the connection, test it and leave you a survey plan of where it all went. One crew, one quote.

Here’s what we can do

Not sure what you need?

Most people aren’t — and you don’t have to be. Tell us what you’re seeing and we’ll tell you what it needs, before anyone turns up with a digger. People usually describe one of these:

A new build or subdivision
Leaks that keep coming back on the same main
Low pressure, or an old galvanised / AC main
A shed, sleepout or pump with no power
Overhead lines you want underground
A farm water or irrigation system to connect

Call 0800 779 588 Send us the details

Mon–Fri 7am–5pm · based at Waiau Pa, South Auckland

A few jobs people ask for

Some of the things we get called about

Not a full list — just the requests that come up most. If yours isn’t here, it almost certainly still is something we do.

Builders · developers
Ducts & pits for fibre and future services
Conduit and pits laid while the trench is open — from the boundary pit to the house — so fibre, power or irrigation can be pulled through later without digging again.
Rural · lifestyle blocks
Bore power & water in one trench
Power out to the bore pump and water back to the house or tank, laid together and mapped.
Homeowners
EV charger supply
Underground cable from the board to the garage, carport or a rural shed, sized for the charger you’re actually fitting.
Homeowners · farms
Overhead to underground
Poles and lines removed, cable trenched to the house and reconnected — tidier, safer, and no more tree trimming.
Homeowners · rural
Water to a new section or tank
A new main from the street or a bore to a second dwelling, a sleepout or a header tank — see Water Mains Installation & Replacement.
Something else?
If it’s underground and it carries power, water, gas or comms, there’s a good chance we do it. Describe the job and we’ll tell you straight.
Call 0800 779 588 →

Why Utility Works

Finds it. Digs it. Fixes it.

Most locating companies hand you a map and leave. Most contractors dig first and hope. We do the whole job with one team.

One crew, start to finish

Locators, hydro-vac truck and diggers on the same team. The people who find it are the people who fix it — no second contractor, no re-marking.

Non-invasive first

Acoustic correlators, GPR, pipe tracing and potholing find the answer before anything is dug. We only open ground where we have to.

Local since 2015

Based at Waiau Pa — most of Franklin, South Auckland and North Waikato is under an hour away, and we know the ground and the councils.

Certified locators, done properly

Our locators hold NZ Certified Locator certification, so you get compliant methods, accurate marks and a survey plan of what went where — and the surface left so you’d never know we were there.

How it goes

From your first call to a finished job

Tell us what needs connecting
Power, water, gas, comms — or all of them. New build, shed, pump or subdivision. We scope it and quote it.
We trench and lay
Existing services located first, then ducts, cable or pipe laid along the safest route, by trench or directional drill.
Live, tested, mapped
Connections made and commissioned, ground reinstated, and a survey plan of where everything went for your records.

Get in touch for a no-obligation quote or to book your service.

Free, no-obligation quote · Mon–Fri 7am–5pm · Auckland, Franklin & North Waikato

Call us0800 779 588 Get a free quote

A closer look

Still not sure which one? Here’s each in more depth.

Water Mains Installation & Replacement

From single dwellings to full subdivisions we install, renew and upsize water mains — from the street connection to the building, including bore and tank supplies for properties off the town network.

Existing services are located first, the route trenched or drilled (hydro-vac near anything sensitive), the new main laid, chlorinated and pressure-tested, valves and meter fitted, and the ground reinstated. The paperwork councils and project specs ask for comes with it.

Good for

New builds and subdivisions
Old galvanised or AC mains that keep failing
Upsizing for pressure
Bore, tank and pump supplies

Water Mains Installation & Replacement →Get a quote

Valve, Hydrant & Meter Replacement

Sometimes it’s not the pipe. A seized isolation valve, a toby that won’t turn, a weeping hydrant, a meter box that’s been driven over — we replace and install the fittings that control and measure your supply.

We locate the existing service first, isolate it, swap the fitting and test it, with the ground reinstated afterwards. Often done in the same visit as a leak repair or a mains renewal.

Good for

Valves and tobies that won’t isolate
Hydrant testing, repair and replacement
New or replacement water meter boxes
Multi-unit sites needing sub-meters

Valve, Hydrant & Meter Replacement →Get a quote

Power Cable Installation

Underground mains power from the boundary or pole to wherever it’s needed — a new home, a workshop, a bore pump, an EV charger — including converting overhead lines to underground. We locate existing services, trench or drill the route, lay the cable in duct and leave it ready for the electrician to connect.

Long runs across rural properties are a specialty: we size the route and the cable so the far end actually gets the voltage it needs.

Good for

New connections and upgrades
Sheds, sleepouts, pumps and chargers
Overhead-to-underground conversions
Long rural runs

Power Cable Installation →Get a quote

New Build Utility Installations

A new build needs power, water, gas and comms brought from the street to the house — ideally in one trench, at the right stage, without holding up the builder. We coordinate with your electrician, plumber and the network companies and install the lot.

For subdivisions we install the reticulation and connections for every lot, with as-built mapping for the council.

Good for

New homes and minor dwellings
Subdivisions and multi-lot developments
Builders wanting one trench, one crew
Compliance and as-built records

New Build Utility Installations →Get a quote

Rural & Farm Connections

Farms and lifestyle blocks are their own world: bores and tanks instead of mains, troughs and irrigation across paddocks, sheds and arenas a long way from the switchboard. We design and install the water and power runs that make it all work.

We locate what’s already buried — old farm services are rarely mapped — then trench, lay, connect and hand you a plan of where everything is.

Good for

Bore and tank water systems
Troughs, irrigation and farm reticulation
Power to sheds, pumps and arenas
Lifestyle block subdivisions

Rural & Farm Connections →Get a quote

Google reviews

What customers say

5.0 on Google →

“Prompt service & fair pricing. Tony and his team — sharp eye for detail and out of the box problem solving paired with a high standard of workmanship.”
Richard La Trobe · Google · October 2026
“Really happy with the work to install our underground services. Highly recommend.”
Sarah Walworth · Google · October 2026
“The only company we trust… reliable, cost effective, and honest service from A to Z. 100% confidence in this company.”
Darrel Assink · Google · September 2026

Underground Utility Specialists

Our Projects

North Waikato

Rural Power Mains Installation in North Waikato

Utility Works was commissioned to install a new power mains cable on a rural North Waikato property. The project involved existing services detection, excavator trenching, and hydro-vac works to keep the trench clear due to in-flow during the project, followed by installation of the three-phase cable and final connect and commission. The project was completed on time and within budget.

Read the case study

South Auckland

Auckland Residential Water Mains Replacement

After the aged water mains at a residential property in South Auckland had many failures, Utility Works was contracted to renew the system. The project involved services detection, concrete cutting, and hydro-vac trenching to minimise risk and damage to other services in the work zone. The new water mains were installed with a new inlet valve, toby, and relayed concrete, and the property reinstated to its original condition.

Read the case study

Worth a read first

Guides & advice

1–3 of 10

Water Main Replacement Cost in NZ: Repair, Renewal or Replace?

When a water main or lateral starts leaking, the first instinct is to patch it. Sometimes that is right. Often it is the first of several patches that together cost more than a new pipe would have. This guide sets out what repair, renewal and replacement each involve, what decides the cost of each in New Zealand, how to tell which one your pipe needs, and the pipe materials around Auckland and the Waikato that are past their time, with examples from our own jobs.

Read the guide