About TMS Oz
Specialist Workshop, Built in WA.
Heavy equipment repairs, maintenance and performance solutions — founded in 2018, owned and operated in Western Australia.
Who We Are
A Workshop That Earns Its Keep.
TMS Oz is a Perth-based heavy equipment workshop, founded in 2018 by Tommy McErlean and operated 100% in Western Australia. We deliver repairs, maintenance and performance solutions for civil, construction and mining operators — from major workshop rebuilds to scheduled servicing and ECU remapping.
We built the business around the kind of workshop operators wish their last shop had been: honest hours, real diagnostics, and a phone that actually gets answered. Direct access to senior techs, work done to OEM standard, and the kind of straightforward communication procurement teams and foremen both appreciate.
We work to OEM standards using genuine and approved parts, back our work in writing, and bring the kind of straight-talking, no-shortcuts approach operators expect from a team that’s been on the tools — not behind a desk.
What We Stand For
Principles That Don’t Budge.
To keep Australia’s heavy machinery in service through honest workmanship, technical precision and the kind of relationships built on doing what we say.
01
Workmanship
Repairs done to OEM standard the first time. No shortcuts, no patch-jobs. Every job is one we’d put our name on.
02
Partnership
We work alongside operators, foremen and procurement teams. Clear communication, honest reporting, no surprises on the invoice.
03
Response
Equipment down means money lost. We move fast to get fleets back in service when it matters.
04
Expertise
Heavy diesel, hydraulics, electrical and ECU tuning under one roof. Specialist tooling, factory-level diagnostics, real depth of knowledge.
Who We Work With
Built for Civil, Construction and Mining.
We work with operators who rely on equipment performance, uptime and reliability to keep projects moving — across Western Australia and beyond.
- Civil Contractors
- Construction Companies
- Earthmoving & Plant Hire
- Mining Operations
- Agricultural Operators
- Heavy Transport & Logistics
In Their Words
What Our Clients Say.
“
We have partnered with TMS Oz for our fleet maintenance and mechanical servicing, and the experience has been exceptional. Their team consistently delivers high-quality workmanship with a level of reliability that is hard to find. They are responsive, deeply knowledgeable, and always ready to tackle urgent breakdowns to keep our operations moving.
What sets TMS Oz apart is their professionalism and commitment to practical, efficient solutions. They treat our assets with immense care, ensuring everything is maintained to the highest standards. We highly recommend Tommy and the entire TMS Oz team to any business looking for a trusted, punctual, and dependable mechanical partner.
— PCH Civil
“
We have been using TMS for the servicing and maintenance of our fleet and assets, and the level of service has consistently been outstanding. Their team is reliable, knowledgeable, and always responsive when urgent support is required.
The quality of workmanship and attention to detail gives us confidence that our equipment is being maintained to the highest standard, helping minimise downtime and keep our operations running efficiently. Communication is always professional, and they go above and beyond to provide practical solutions when needed.
We highly recommend TMS to anyone looking for dependable and professional mechanical support.
— A1 Plant Hire
“
We have been using TMS Oz for 4 years now. Their knowledge, reliability and quality of work are why we keep using them. TMS Oz keeps our varied fleet serviced and maintained to factory requirements and are quick to fix any emergency breakdowns.
— Halo Civil Engineering
“
Since entering the market in WA, our “recipe” to success comprises of a number of factors. One of these factors is the relationships we build and maintain with our suppliers. Tommy and the team at TMS Oz are a trusted supplier of repair and maintenance-based solutions on our equipment whenever and wherever it's required across WA. Tommy and his team are professional, punctual and provide a service that we hold in very high regard.
— Proquip Rental & Sales
Ready When You Are
Ready to Support Your Next Project.
Get in touch — we’ll handle your next repair or project requirement.