Trusted Mechanical Services
Inside the Trusted Mechanical workshop in Lonsdale, serving Happy Valley and foothills drivers

Mechanic near Happy Valley

Servicing, brakes, transmission work and diesel tuning for Happy Valley and the southern foothills, a short drive down the hill at our Lonsdale workshop.

4.8 stars302 Google reviews
RAA Approved RepairerAudited, fair-pricing
In-house dynoTunes verified live
100% Result GuaranteeAll work guaranteed
We photographevery job

A mechanic for Happy Valley and the southern foothills

Happy Valley sits up in the southern foothills, by the reservoir and alongside Aberfoyle Park, Flagstaff Hill and Chandlers Hill. Our Lonsdale workshop is a short drive down the hill, by way of Reynella.

Living in the foothills means every trip starts or ends with a climb, and that puts brakes, cooling systems and automatic transmissions to work every day. We look after all 3 as part of a proper service, and we explain what we find with photos so you can plan ahead.

We service family cars and SUVs, and we're a diesel specialist for the utes and 4WDs that head out of the hills for weekends away.

Front brake being serviced at Trusted Mechanical in Lonsdale for a Happy Valley driver

Brakes, transmissions and servicing for foothills driving

Hills driving asks more of the parts that control speed and heat, so these are the jobs Happy Valley drivers book with us most:

Why Happy Valley drivers book with us

RAA Approved Repairer credential held by Trusted Mechanical, Lonsdale
  • RAA Approved Repairer and MTA SA member. Audited by RAA on knowledge, skills and equipment, with a fair-pricing promise: you pay only for work that is done and needed.
  • 4.8 stars across 302 Google reviews from drivers right across southern Adelaide.
  • We photograph your service and show you the photos when you come in.
  • In-house chassis dyno for diesel tunes written and verified live under load.
  • All work guaranteed, with loan cars on request (see guarantees and loan-car terms).

Getting here from Happy Valley

Come down the hill through Reynella to 31 Aldenhoven Road in the Lonsdale industrial area. It's a short drive from Happy Valley, and an easy one from Aberfoyle Park and Flagstaff Hill as well.

Drop the car on your way to work, take a loan car on request, and collect it serviced and photographed. Book online to choose a time.

31 Aldenhoven Road, Lonsdale SA 5160 · Mon-Fri 8:30AM-5:00PM

Holden Commodore on the dyno at Trusted Mechanical in Lonsdale, a short drive from Happy Valley

Nearby suburbs we look after

We also look after the suburbs between Happy Valley and the coast, all from the one Lonsdale workshop:

Happy Valley mechanic FAQs

We're at 31 Aldenhoven Road, Lonsdale SA 5160, a short drive down the hill from Happy Valley by way of Reynella. Aberfoyle Park, Flagstaff Hill and Chandlers Hill drivers come to us the same way.

4.8 stars across 302 Google reviews

Related services

Book your car in from Happy Valley

RAA Approved Repairer · MTA SA member · all work guaranteed · we photograph your service · loan cars on request · 31 Aldenhoven Road, Lonsdale SA 5160 · Mon-Fri 8:30AM-5:00PM

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