Mobile Heavy-Duty Diesel Mechanics for Mining, Civil, Agriculture & Transport

Certified Mechanical Services keeps hard-working machines moving across Western Australia and the Northern Territory with mobile mechanical support, breakdown repairs, rebuilds, labour hire and fleet servicing.

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Mechanical support that works where you do

From mine sites and civil projects to stations, workshops and transport yards, CMS provides responsive mechanical services for heavy equipment, road transport, agricultural machinery, light vehicles, motorcycles and buggies.

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We help with:

Breakdown, Repairs & Servicing

For keeping vehicles, machinery and equipment operational with responsive support and routine maintenance.

Fleet & Site Support

For businesses needing ongoing maintenance structure, extra hands or site-based mechanical support.

Rebuilds, Components & Ground Engaging Tools

For major mechanical work, replacement parts and high-wear equipment support.

Machine Hire

For clients needing equipment access without operators.

Nighttime photo of a large construction vehicle, possibly a bulldozer, on a dirt surface with tire tracks, illuminated by bright artificial lights.
Yellow construction vehicle with large tires and boom attachment, parked on dirt lot under clear blue sky, with other heavy equipment in background.
Close-up of a construction or industrial machinery with exposed metal parts, hoses, wires, and a yellow tool, resting on a weathered wooden surface with dirt and debris around.
A large yellow bulldozer on a dirt construction site with a white service vehicle in front of it. The service vehicle has signage for "Certified Mechanical Services" and a yellow license plate labeled "CMS04." Clear blue sky in the background.
A construction site scene with a large pink rock crusher and a white service truck with repeated text reading 'Certified Mechanical Services.' The sky is partly cloudy and the ground is reddish dirt.

Built for breakdowns, rebuilds and everything in between

You need mechanics who can think on their feet, work safely, and get the job done without turning a simple repair into a three-act drama.

CMS brings practical field experience, workshop capability and a straight-talking approach to every job. Whether you need a one-off callout or ongoing fleet support, we’ll help keep downtime to a minimum and your equipment earning its keep.

Services at a glance

Mining & Civil Mechanical Services

Mobile repairs, diagnostics, servicing and maintenance for mining and civil equipment across WA and NT.

Agriculture

Mechanical servicing and repairs for agricultural equipment, station vehicles and machinery that does not get the luxury of a “quiet day”.

Labour Hire

Qualified heavy diesel mechanics for breakdowns, short-term cover, long-term maintenance and site-based support.

Road Transport

Support for trucks, road trains and transport fleets, including servicing, repairs and breakdown assistance.

Engine & Component Rebuilds

Workshop-based rebuilds for engines and components, backed by CMS warranty on engine rebuild work.

Fleet Management

Interval servicing schedules and maintenance planning to help keep your fleet organised, safe and operational.

get to know us
Owner of CMS Jake wearing a cap, long-sleeve shirt, and a watch, working on the engine of heavy construction equipment outdoors during daytime.

Why Choose CMS

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FAQs - Certified Mechanical Services

  • Yes. Certified Mechanical Services provides 24/7 breakdown and callout support for mining, civil, agricultural and transport clients across WA and NT. When machinery goes down, we help get things moving again as quickly as possible.

  • We provide heavy diesel repairs, diagnostics, servicing and maintenance for hard-working machinery, trucks, road transport equipment, agricultural gear and site vehicles. In plain English, if it works hard and chooses the worst possible time to break, we can probably help.

  • Yes. CMS provides engine rebuilds and component rebuilds for heavy diesel machinery and related equipment.

    While many companies send engines and components interstate to be rebuilt, CMS completes this work locally in the NT. This gives clients a more direct, reliable and efficient option, with engine rebuilds backed by CMS warranty for added confidence that the work has been done properly.

  • Yes. We can assist with Ground Engaging Tools replacement and installation for earthmoving and ground-moving equipment, including buckets, cutting edges and other wear parts.

  • To quote Ground Engaging Tools work accurately, we’ll need your company and contact details, machine location, make, model, year, fleet ID number, the GET required, whether installation is needed, and clear photos of the bucket, cutting discs or required parts.

  • Yes. CMS can help with fleet management and scheduled servicing, including interval servicing schedules to keep your machinery, vehicles and equipment maintained, organised and ready for work.

  • Yes. We offer labour hire for short-term and long-term site support, including breakdown assistance, maintenance support, site-based servicing and workshop cover.

  • Yes. Our labour hire support is suited to mining, civil, agricultural, road transport, station and workshop environments where skilled mechanical support is needed on site.

  • Yes. We provide automotive air-conditioning servicing for light vehicles through to heavy equipment, helping keep operators and drivers comfortable while they’re out doing the actual hard work.

Need urgent breakdown support?

For breakdowns and callouts, contact CMS on 0403 305 790.

We’re open 24/7 for callouts and breakdowns across Western Australia and the Northern Territory.

Contact us today