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NHDS service truck and ute parked on red dirt at sunset out in the Territory

Proudly local to the Top End

Mobile Diesel Mechanic in Darwin & the NT

Trucks, trailers, heavy equipment, earthmoving and agricultural machinery, on site wherever the job is.

Isuzu stock truck on site for repairs, with NHDS service trucks and crew in the backgroundThe No Hassall’s Diesel Services crew standing with their branded service trucks and ute in DarwinMachine cab with the dash stripped back and wiring loom exposed for electrical repairs

Established 2022

Diesel Mechanics you can rely on

No Hassall’s Diesel Services is a locally owned and operated business providing a one-stop mobile workshop that comes to you. With over 35 years of combined experience in the heavy road transport industry, we’ve seen firsthand the need for quality, reliable workmanship, and that’s exactly what we deliver.

We service, diagnose and repair heavy equipment, earthmoving machinery, trucks and generators on site, with a firm focus on getting the job done right the first time. From Darwin to the remotest parts of the Territory, we’re committed to providing the best possible service, wherever that may be.

Diesel Services We Offer

Repairs, Maintenance & Servicing

The full list of diesel work we do on site, from scheduled servicing to engine rebuilds and diagnostics.

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Trucks & Vehicles

  • Hino and Isuzu trucks
  • Heavy trucks and trailers
  • Preventative maintenance and fleet servicing
  • Toyota repairs and servicing
  • Pre-purchase inspections

Plant & Equipment

  • Heavy equipment repairs
  • Earthmoving equipment
  • Excavators
  • Loaders
  • Graders
  • Dozers
  • Cranes
  • Forklifts
  • Agricultural machinery
  • Generators

Diagnostics & Repairs

  • Diesel engine diagnostics, repairs and rebuilds
  • Fuel systems
  • Hydraulics
  • Electrical and auto-electrical
  • Cooling systems
  • Driveline and transmissions
  • Air and brakes
  • Steering and suspension
  • Scan tool diagnostics
  • Air conditioning

Field & Site Support

  • Mobile diesel mechanic services
  • Breakdown repairs and emergency callouts
  • Field service support
  • Mine site maintenance
  • Remote area mechanical support
  • Remote community and outstation support
  • Parts sourcing and supply

We come to you

Your Mobile Diesel Mechanic from Darwin to the Remote NT

Based in the Top End, we do all our work on-site, from Darwin to the remotest corners of the NT. Our teams regularly mobilise anywhere in the Territory, covering civil projects, communities, outstations, cattle stations and mine sites. Wherever your equipment is, we’ll come to you.

Not sure if we cover your location? Give us a call or flick us an email, we’re always happy to have a chat.

Areas we service include:

  • Darwin
  • Palmerston
  • Howard Springs
  • Humpty Doo
  • Batchelor
  • Adelaide River
  • Daly River
  • Pine Creek
  • Katherine
  • Jabiru
  • Nhulunbuy (Gove)
  • Timber Creek
  • Top Springs
  • Daly Waters
  • NT/WA border
Call 0484 279 450
NHDS service truck beside a grader loaded on a float, ready to head out

Machine Down? Give Us a Call.

When a truck, generator or piece of plant stops, the job stops with it. We do breakdown repairs and emergency callouts, in town and out on remote sites. Call us with what has happened and where you are, and we will work out the quickest fix.

Who We Work With

Hino, Isuzu, Toyota and heavy trucks

Truck & Fleet Servicing in Darwin & Palmerston

Preventative maintenance and repairs for Hino and Isuzu trucks, heavy trucks and trailers, Toyotas and work fleets. We keep the focus on getting you back to work with as little downtime as possible.

Two NHDS service trucks parked at a site workshop with plant under cover

Why choose us

What Sets No Hassall’s Apart

  • We Come to You

    Fully mobile, from Darwin and surrounds to mine sites, stations and remote communities. Your machine stays where it is working.

  • Built Around Your Downtime

    A parked-up truck or machine costs you money. We keep you in the loop and focus on getting it back to work.

  • Locally Owned & Operated

    A Top End business owned by Tim Hassall. You deal directly with a local team, not a call centre.

Diesel cylinder head stripped down on the bench, with valve springs exposed mid rebuild

Diesel Work Without the Hassle. The Name Says It All.

At No Hassall’s, we keep diesel equipment running at its best. From workshop servicing to on-site and remote work, our team delivers efficient repairs, honest communication and quality workmanship every time. No runaround, no surprises: just a genuinely hassle-free service experience.

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Google reviews

What Our Customers Say

Straight from our Google reviews. If we have done a job for you, we would love to hear how it went.

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  • FIVE STARS all-round. Exactly what the business name stands for: No Hassall’s Diesel Services.

    They came out as quickly as possible. They were honest from start to finish, identified the job and told me exactly what was wrong and how long it would take, without any muck about. Friendly service, very satisfying overall. Hands down, they couldn’t have done a better job at a great price. These guys shopped around to make sure they found me the best prices they could for new injectors for my HR truck.

    That saved me a lot of money. Highly recommended, I’ll definitely be using them again.

    ScottNT Truck Training & Testing
  • Great team! Top Service! Highly recommend!

    James HayesGoogle Local Guide

Frequently Asked Questions

Do you come to us?

Yes. We are a mobile diesel mechanic, so we bring the service truck to your home, yard, depot or job site. Your vehicle or machinery stays where it is.

What areas do you cover?

We are based in the Top End and work across Darwin, Palmerston and across the Northern Territory, including Howard Springs, Humpty Doo, Batchelor, Adelaide River, Katherine, Jabiru, Nhulunbuy and out to the NT/WA border. We regularly travel to remote locations and can mobilise to sites anywhere in the NT.

What machinery do you work on?

Excavators, loaders, graders, dozers, cranes, forklifts, generators, agricultural machinery, Hino and Isuzu trucks, heavy trucks and trailers, and Toyotas. If it runs on diesel, give us a call and we will let you know if we can help.

Do you handle breakdowns?

Yes. We do breakdown repairs and emergency callouts. Call us on 0484 279 450, tell us what has happened and where you are, and we will work out the best way to get you moving again.

Do you work on mine sites, stations and remote communities?

Yes. We provide field service support and maintenance on mine sites, cattle stations, civil construction projects and remote Aboriginal communities, including the West Daly and East Arnhem regions.

Do you do hydraulic repairs?

Yes. We diagnose and repair hydraulic systems on earthmoving and heavy equipment, along with brakes, transmissions, differentials and final drives.

What are your opening hours?

We are open Mon to Fri, 8:00 am to 5:00 pm. You can send a quote request through the form any time and we will get back to you during business hours.

How do I book a service or get a quote?

Call us on 0484 279 450 or fill in the quote form on this page. Include the machine or vehicle, where it is and what it is doing, and we will come back to you with next steps.

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Get a Quote with No Hassall’s

Tell us about your equipment and the issue: the more detail you give us, the quicker we can get you operating.

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NHDS crew cab truck under a port gantry craneTransmission valve body stripped down for inspectionCrane lift on a bush blockNHDS ute with service tray
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Tell us what you are running and what it is doing. Prefer to talk? Call 0484 279 450

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