Shamrock service ute parked beside a chain trencher at an equipment yard
North Island · Mobile mechanic

Trencher
repairs.

Chain trenchers · On site

Chain trenchers set up to cut clean, straight and on depth — servicing and repairs done on your site, anywhere in the North Island.

  • On-site repairs
  • All North Island
  • After-hours call-outs
What we fix

Cutting clean
and on depth.

Trenchers work hard in tough ground. Diarmuid keeps the digging chain, drives and hydraulics in shape so the trench stays straight.

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  • Digging chains & teeth

    Chain wear, teeth, pins and tension checked and replaced before they fail.

  • Sprockets & drives

    Head shafts, sprockets, drive motors and gearboxes repaired and rebuilt.

  • Hydraulic systems

    Pumps, motors, valves and hoses — pressure testing and leak repairs.

  • Engines & undercarriage

    Diesel servicing, tracks, rollers and undercarriage wear.

  • Scheduled servicing

    Servicing by machine hours so the trencher is ready for the next job.

  • Breakdown call-outs

    Trencher down on site? Send the location and a photo and get help fast. Send it on WhatsApp

Makes & areas

Any make.
Anywhere north.

Diarmuid comes to you with a fully kitted service truck. No need to move the machine to a workshop.

Makes we work on

Experienced with the makes most common on New Zealand sites. Not on the list? Send the make and model and you'll get a straight answer.

  • Vermeer
  • Ditch Witch
  • Tesmec
  • Toro

Where we work

The whole North Island — including Whangārei, Auckland, Hamilton, Tauranga, Rotorua, Taupō, New Plymouth, Napier, Hastings, Palmerston North and Wellington.

  • Northland
  • Auckland
  • Waikato
  • Coromandel
  • Bay of Plenty
  • Rotorua & Taupō
  • Gisborne
  • Hawke's Bay
  • Taranaki
  • Manawatū-Whanganui
  • Wairarapa
  • Wellington
Good to know

Common
questions.

Anything else? Ask Diarmuid directly — you always deal with the person working on your machine.

TrencherTracked chain trencher
Do you repair trenchers on site?

Yes. Diarmuid comes to your site with a fully kitted service truck, anywhere in the North Island.

Can you replace digging chains and teeth?

Yes — chains, teeth, sprockets and the drive system, plus a check of what caused the wear.

Do you work on ride-on and walk-behind trenchers?

Yes. Send the make and model and Diarmuid will confirm what he can do.

Can you help with a breakdown out of hours?

Yes, after-hours call-outs are available. WhatsApp is the fastest way to get in touch.

What else we work on

One specialist.
Four machines.

Many crews run more than one type of machine. One mechanic can look after them all.

HDD rigHorizontal directional drilling rig
Also on the tools

Directional drilling rigs

Servicing, breakdown repairs and rebuilds for horizontal directional drilling rigs — done on your site, anywhere in the North Island, by a mechanic who specialises in them.

HDD rigs — repairs & servicing
Vac unitVacuum excavation truck
Also on the tools

Vac units

Servicing and repairs for vacuum excavation trucks and trailers — blowers, vacuum pumps, debris tanks and water systems — done on site across the North Island.

Vac units — repairs & servicing
ExcavatorTracked excavator
Also on the tools

Excavators

Excavators serviced and repaired right where they work — from mini diggers to larger crawler excavators, anywhere in the North Island.

Excavators — repairs & servicing
Other heavy plant?

Shredders, loaders, telehandlers and other civil plant too — if it runs on diesel and hydraulics, Diarmuid can take a look.

Ask about your machine
Start a conversation

Trencher down?
Let's get to work.

Tell Diarmuid what machine it is, where it is and what happened. Photos of the fault help a lot.

Phone021 060 0185
HoursMon–Fri 7am–5pmAfter-hours call-outs available
Emaildcooney@shamrockmechanicalsolutions.com
Service areaAll of the North Island, NZ
Fleet or civil contractor?

Ask about planned servicing for multiple machines or a field-support arrangement for your crews. Email a company enquiry →

Request a service or quote

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We'll reply as soon as we're off the tools.

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