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TRUSTED LOCAL MECHANIC IN THREEMILESTONE

SM Auto Tech offers reliable garage solutions for all vehicle types. We specialise in diagnostics, comprehensive servicing, and reliable repairs.

Call our team to book your vehicle in.

WE ARE SPECIALISTS

EXTENSIVE KNOWLEDGE

YEARS OF EXPERIENCE

ABOUT SM AUTO TECH

Established in 2024, SM Auto Tech is a trusted local mechanic based in Threemilestone, Truro, offering diagnostics, repairs, and servicing for cars, vans, HGVs, and campers. With a reputation for honest service and technical expertise, our team delivers tailored solutions for everything from everyday maintenance to complex mechanical issues. We use advanced diagnostic tools, laser wheel alignment, and specialist air conditioning equipment to keep your vehicle performing smoothly. Whether you're running a family car or a commercial fleet, we’re here to keep you moving confidently across Cornwall. Get in touch today so we can take care of your vehicle.

WHAT WE OFFER

AIRCON SERVICES

Keep your cabin comfortable year-round with expert air conditioning servicing for both R1234yf and R134a systems.

​MECHANICAL & ELECTRICAL DIAGNOSTICS

Advanced fault-finding for engine, clutch, turbo, suspension, airbags, and steering systems using the latest diagnostic tools.

SERVICING & INSPECTIONS

Routine maintenance and safety checks tailored to your vehicle’s needs – ideal for both private and commercial use.

LASER WHEEL ALIGNMENT

Precision 2- and 4-wheel alignment for smoother handling, improved tyre wear, and optimal driving performance.

WET & DRY TIMING BELTS

Professional replacement of wet and dry timing belts to maintain engine timing and avoid costly damage.

TIMING CHAIN REPLACEMENTS

Secure long-term engine performance with reliable timing chain inspections and replacements.

WATER PUMP & COOLING REPAIRS

Effective water pump replacements and cooling system repairs to keep your engine running at the correct temperature.

FULL ENGINE REPLACEMENTS

From diagnostics to fitting, we handle full engine replacements with care and expertise for long-term reliability.

I thoroughly recommend SM Auto Tech - They got me in super fast, towed my car and kept me up to date. My slave cylinder had gone on my car, and we thought it was internal in the gearbox, so we were going to change the whole clutch. It turns out that the slave cylinder was external, and I was advised that they wouldn't need to replace my clutch, just the cylinder (saving me much money, which they are reasonable about, too). Really good garage, not that local to me, but I will be back.

- Katie Hayne

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WHAT MAKES US STAND OUT

  • SPECIALIST EXPERTISE: Skilled in diagnostics, repairs, and servicing for all vehicle types.

  • ADVANCED TOOLS: Equipped with modern diagnostics and laser wheel alignment technology.

  • COMPREHENSIVE SERVICES: From aircon re-gassing to full engine replacements, we’ve got you covered.

  • HGV AND FLEET SOLUTIONS: Tailored servicing and inspections for commercial vehicles.

  • LOCAL AND INDEPENDENT: Trusted by the Cornwall community for honest, reliable service.

  • CUSTOMER-FOCUSED: Building strong relationships with returning customers.

  • FLEXIBLE SCHEDULING: Convenient booking options to suit your needs.

A blue car is being repaired in a garage

KEEPING YOUR VEHICLE RUNNING SMOOTHLY

We’re more than just a garage – we’re a team of dedicated professionals focused on keeping vehicles running smoothly. With a strong reputation for honest service and technical expertise, we understand how frustrating unexpected breakdowns can be. That’s why we provide tailored solutions for everything from family cars to commercial fleets. Our use of advanced diagnostics and a customer-first approach ensures efficient, reliable results. Alongside electric and hybrid vehicle servicing, whether it’s regular maintenance or a more complex issue, we take the stress out of keeping your vehicle on the road. Drive with confidence knowing trusted support is always close by.

EXPLORE RELIABLE GARAGE SOLUTIONS TODAY

Call Now For Expert Support With Diagnostics, Servicing, And Repairs. Our Technicians Are Ready To Assist With Reliable Solutions For Every Vehicle.

OPENING HOURS

Monday – Friday: 08:30 - 17:30
Saturday: 08:30 - 13:00
Sunday: Closed

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A: Unit A Cedar Units, Threemilestone Industrial Est, Threemilestone, Truro, TR4 9LD

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