TRUSTED MECHANIC &
PERFORMANCE SPECIALIST
SERVICING - DIAGNOSTICS - REPAIRS - PERFORMANCE
From everyday servicing and maintenance to high-performance builds - we do it right every time - all makes & models.
LOGBOOK
SERVICING
ENGINE DIAGNOSTICS,
ECU & TCU PROGRAMMING
BRAKE &
SUSPENSION REPAIRS
PERFORMANCE
UPGRADES
FABRICATION, ENGINE
BUILDS & MACHINING
TURBO &
SUPERCHARGER INSTALLS
Why Choose
All GM Automotive?
We're not your typical mechanic.
At All GM Automotive, we combine honest advice, quality workmanship and real performance knowledge. We specialise in Holden, HSV and LS platforms - but we work on everything from daily drivers to full custom builds.
Whether your car needs diagnosing properly, fixing right the first time, or pushing serious power, we’ve got the tools, experience and no-BS approach to get it done.
✔ Holden & LS Specialists
✔ Performance & Tuning Specialists
✔ Honest, Straightforward Advice
✔ Quality Parts & Workmanship
‹›
⌖
Mechanic in Altona
Servicing Melbourne's West
Based in Altona, we proudly service customers from:
› Williamstown › Point Cook › Hoppers Crossing ...and all surrounding suburbs. › Laverton › Newport › Werribee
Ready to book your vehicle in?
Whether it’s servicing, diagnostics or performance upgrades - we’ve got you covered.
Book Online Call Us
Google Reviews
What Our Customers Say
★★★★★
Honest advice, quality workmanship and real results - see why customers trust All GM Automotive.
★★★★★
Honestly, if anyone knows there stuff is Terry and his crew. Couldn't be any happier with my ride. After all this time it's actually drives like a new car. The idle, response, the hanging, the power, and the fuel economy. Honestly, I couldn't recommend anyone else. All GM Automotive. For any Holden LS engines, drive line and fabrication work. I highly recommend the boys at All GM Automotive. So don't be shy ring Terry and his crew to see what horse power he can achieve with your ride. 10/10 from me.😎👌👍
— Google Review
★★★★★
Had my car in there for a touch up tune and they went above and beyond, very very knowledgeable and always willing to help in every way they can, by far the best shop around and the best shop I’ve been too highly highly recommend
— Google Review
★★★★★
Dropped my v6 vs off to terry at All Gm for a full ls conversion for Summernats couldn’t be more happy with the work that was done turns heads everywhere I go highly recommend All Gm and will definitely take another car there
— Google Review
★★★★★
Terry has swapped my tb42 patrol with a cammed L98 and I am wrapped with the result
— Google Review
★★★★★
Best mechanic out there highly recommend to anyone
— Google Review
★★★★★
Great team, definitely know what they are doing, highly recommend them.
— Google Review
★★★★★
Amazing job done on my car. Would highly recommend to anyone.
— Google Review
★★★★★
The boys at all gm have gone above and beyond for my ve Ute they built. Very tidy work and would highly recommend as they do everything in house from building motors to fab work & tuning ect.
— Google Review
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Contact & Open Hours
Visit, Call or
Book Online
We’re here to help with servicing, diagnostics, repairs and performance upgrades.
Whether you’re ready to book your vehicle in, want to send an enquiry, or just need to give us a call – you’ll find everything you need below.
› 13 Milla Way, Altona VIC
› Monday to Friday: 8:00am – 6:00pm
Frequently asked questions
Do you service all vehicle makes and models? ⌃
Yes. All GM Automotive services all vehicle makes and models, including Holden, Ford, Toyota, Nissan and European vehicles.
Do you specialise in Holden and performance vehicles? ⌃
Yes. Our workshop specialises in Holden, HSV and LS performance builds, as well as diagnostics, servicing and mechanical repairs.
Where is your workshop located? ⌃
Our workshop is located in Altona, Melbourne, and we regularly service customers from Williamstown, Laverton, Point Cook, Newport, Hoppers Crossing and Werribee.
Do you offer vehicle diagnostics? ⌃
Yes. We provide professional vehicle diagnostics to identify warning lights, performance issues and mechanical faults.
Do I need to book before bringing my car in? ⌃
We recommend contacting us first to discuss your vehicle and arrange a suitable time for inspection or repairs - however, walk-ins are always welcome.
Experienced
Technicians
Premium
Parts
Honest
Advice
Performance
Specialists