Power Cable Installation
Underground mains power — new builds, sheds, pumps, rural runs
Since 2015Own locators, hydro-vac & diggersAuckland · Franklin · North Waikato
What it is
Running a buried electricity cable from the network connection — a pillar, pole or transformer — to a house, shed or building. We locate existing services, trench, lay and protect the cable, backfill, and leave it ready for your electrician to connect.
When you need it
- A new build or sleepout needs mains power brought in underground.
- You want overhead lines to the house replaced with buried cable.
- A pump, shed or EV charger needs a dedicated feed across the property.
What you get
- Cable laid at the correct depth with marker tape and mechanical protection.
- Trench backfilled and surface reinstated — lawn, drive or paddock.
- Connect and commission arranged with the network; the route recorded.
Reliable, Certified Underground Power Cable Installation
Installing a main power cable to your house, shed, commercial site, or rural property requires expertise, compliance, and safe delivery. Whether you’re upgrading an old supply, completing a new build, or converting from overhead to underground lines, Utility Works delivers complete underground electrical installation services across Auckland, Franklin, and North Waikato.
We ensure every unground mains power cable is installed to network standards, correctly sized, safely buried, and ready for connection by your electrical contractor or lines company.
What’s included
What a power cable job covers
Underground Mains Power Cable Installation
Our team installs mains power feeds for new homes, subdivisions, commercial buildings, and rural properties. Every installation meets cable depth, protection, and compliance requirements.
Electrical Installation for New Builds & Site Upgrades
Whether you’re adding a sleepout, shed, pump system, or extending your home, we run dedicated underground power feeds to support your electrical contractor.
Learn more about Electrical Installation for New Builds & Site Upgrades →Main Power Cable to House Connections
We install power cables from boundary boxes, pillars, or transformers to your house or building entry point, ensuring your electrician has everything ready for final hookup.
Overhead-to-Underground Power Conversion
Remove old overhead lines and upgrade to safer, cleaner underground power cable systems.
Power Your New Build, Shed, or Rural Site with Professionally Installed Underground Main Cables.
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
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
Tuakau, North Waikato
Services Detection & Mapping in Tuakau
A local power network provider in Pukekohe needed expert service detection and mapping. With multiple high-voltage cables traced and marked out, duct and drainage tracing, water mains tracing and multiple communications cables in the vicinity, the project required our specialist services and expertise.
Read the case studyWorth a read first
Guides & advice
1–3 of 6
Underground Power Cable Installation in Pukekohe & Franklin: What Property Owners Need to Know
Underground power cable installation is one of the most common questions we get from property owners across Pukekohe and Franklin — usually alongside one specific question: what's this actually going to cost?
Read the guide
Overhead to Underground Power Conversion in NZ: Cost, Process and Is It Worth It?
Most of the overhead lines you see in Auckland and the Waikato are the network's, and they are not going anywhere soon. The line from the street to your house is different. That one is usually yours, and it can be put underground. This guide covers what a conversion involves, who does which part, what decides the cost for a house, a lifestyle block and a subdivision, how long the lines company takes, and when it is worth doing.
Read the guide
Installing Power to a Shed or Sleepout in Rural Auckland and Waikato: Cost, Cable, Consents and Process
Running power to a shed, sleepout, pump or workshop sounds like a day with a trencher and a reel of cable. The cable is the easy part. Getting the size right over a long rural run, keeping the trench legal and findable, deciding whether the building itself needs consent, and sequencing the electrician and the digger so nobody waits are what make the difference between a connection that works for forty years and one that trips every winter. This guide covers all of it, including what decides the cost in Auckland, Franklin and the Waikato.
Read the guideFAQ'S
Do you install the main power cable to the house?
Can you install power to sheds, sleepouts, or minor dwellings?
Do you handle ducting and trenching for electrical installations?
Is an electrician required as well?
Can you upgrade old or damaged underground power cables?
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