Valve, Fire Hydrant & Water Meter Replacement
Keeping private water networks controllable across Auckland, Franklin and North Waikato
Since 2015Own locators, hydro-vac & diggersAuckland · Franklin · North Waikato
What it is
The fittings on a water network — the toby at the boundary, isolation valves along the main, fire hydrants and meter boxes — wear out like anything else. We dig them up, replace them and reinstate the ground, without replacing the whole main.
When you need it
- The toby will not turn, or turns without stopping the water.
- A private hydrant is seized, leaking or failed its flow test.
- A multi-unit site needs sub-meters so each tenancy can be read separately.
What you get
- The failed fitting replaced and tested, with the shut-off working again.
- Hydrant flow and pressure results recorded where tested.
- Excavation backfilled and the surface and box reinstated.
Valves, Hydrants and Meters That Work When You Need Them
A water network is only as manageable as its fittings. A seized isolation valve turns a small repair into a whole-site shutdown. A weeping toby wastes water for years without anyone noticing. A hydrant that has not been flow tested is a liability on the day it is needed. Utility Works replaces and installs the valves, fire hydrants, backflow devices and water meter boxes that let owners of private networks across Auckland, Franklin and North Waikato isolate, measure and protect their supply.
This work rarely stands alone. It usually follows a water network survey that has flagged failed fittings, or an underground leak detection job where the leak turned out to be the valve itself. Where the pipe around the fitting has reached the end of its life, we move into water mains replacement. One crew, from diagnosis to reinstatement.
What’s included
What a fittings job covers
Isolation Valve Replacement
Seized, weeping or passing isolation valves mean you cannot shut down a section of your network when you need to. We replace gate, butterfly and ball valves on private mains, with the tapping, excavation and reinstatement done by our own crew.
Toby & Boundary Valve Replacement
A toby that will not turn, or turns without stopping the flow, leaves a property with no way to isolate. We dig, replace and re-box tobies at the boundary so the shut-off works when a plumber or tenant needs it.
Fire Hydrant Replacement
Private hydrants on commercial, industrial and retirement sites corrode, seize and leak like any other fitting. We replace hydrant risers, valves and surface boxes and get the hydrant back to full working order.
Hydrant Flow & Pressure Testing
We flow and pressure test hydrants to confirm what the network can actually deliver, record the results, and flag hydrants that fall short so they can be addressed before they are relied on.
Learn more about Hydrant Flow & Pressure Testing →Backflow Prevention Devices
Where a private network connects to the public supply, a backflow preventer protects the mains from contamination. We install and replace reduced-pressure and double-check devices and the valve chambers that house them.
Water Meter Box Installs
We install new meter boxes and sub-meters for multi-unit developments, body corporates, commercial tenancies and rural sites, so every connection can be read, billed and leak-tested on its own.
Seized valve, failed hydrant or a meter box to install? Talk to us about getting your network back under control.
Free, no-obligation quote · Mon–Fri 7am–5pm · Auckland, Franklin & North Waikato
Google reviews
What customers say
“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
Our Projects
1–2 of 3
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
South Auckland
Retirement Village Water Leak Detection & Repair
A large retirement village of 58 units in South Auckland had been experiencing underground water loss. Utility Works conducted system loss testing, system mapping, mark-out and CCTV/sonde pinpointing of joint and tapping band positions, isolation point installation, followed by acoustic and infrared detection works. Once leak positions were located, we implemented strategic excavation and pipe repairs, followed by ground reinstatement and site clean-up. This successful project resulted in the accurate locating and repair of five leak positions, and provided substantial water savings to the client.
Read the case studyWorth a read first
Guides & advice
1–3 of 5
How to Find an Underground Water Leak in NZ: Signs, the Meter Test and Who to Call
Most underground water leaks start small and stay out of sight. By the time water shows at the surface it may have been running for weeks, and every litre has gone through your meter. This guide covers the signs we see most often across Auckland, Franklin and the Waikato, how to run the meter test that confirms a leak, how to work out which side of the meter it is on, and who to call for each situation.
Read the guide
Who Owns the Pipe From the Street to Your House? Point of Supply, Responsibility and Leak Remissions in NZ
When water starts pooling in the berm or the bill doubles, the first question is who has to fix it. The answer depends on which side of the point of supply the problem sits, and that line is drawn in a slightly different place on urban, rural, cross-lease and unit-title properties. This guide explains where it is, what the water supplier will and will not do, how shared pipes and tenancies work, and how to claim back some of the water a leak cost you.
Read the guide
Water Network Surveys for Commercial & Strata Properties in South Auckland
Commercial and strata properties often run on water systems that were designed and installed years, sometimes decades, ago.
Read the guideFAQ'S
How do I know if an isolation valve needs replacing?
Who is responsible for the toby and water meter at my property?
Do you test fire hydrants or only replace them?
Can you install separate water meters for each unit in a development?
What happens if the valve is buried or not where the plans say?
Ready when you are.
Tell us what you’re seeing or what you’re planning. You’ll get a straight answer, a free quote and one crew that does the whole job.
Mon–Fri 7am–5pm · Waiau Pa, South Auckland · Auckland, Franklin & North Waikato