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Mechanical Repairs & Servicing

When downtime isn't an option, you need a mechanical partner you can rely on to keep your vehicles on the road.

What we offer

From routine servicing to complex diesel repairs, we keep your commercial vehicles and heavy trucks running safely, reliably, and with minimal operational downtime.

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Scheduled Servicing & Maintenance

Prevent costly breakdowns before they happen and keep your business-critical vehicles moving with regular servicing and scheduled maintenance.

Diesel Repairs

We specialise in heavy diesel vehicles, tackling everything from routine servicing to complex common rail systems, injectors, turbos, and fuel system faults.

Engine & Drivetrain Overhauls

Our expert team handles the most complex mechanical overhauls with precision, so you can rest assured your head gaskets, cambelts and gearboxes (and the rest) are in safe hands.

Suspension, Steering & Brakes

We carry out safety-critical repairs and replacements with precision, so your vehicles handle confidently and stop when they need to.

Advanced Diagnostic Scanning

We can quickly and accurately pinpoint issues across all makes and models, reducing guesswork and getting your vehicles back on the road faster.

Why clients trust us for repairs and servicing

Right first time, every time

We complete all mechanical repairs to the highest standard, eliminating repeat visits, reducing downtime, and getting your vehicles back to work fast.

Diesel specialists on your side

We know heavy diesel vehicles inside out, bringing the same expertise and precision to every job, however complex it may be.

Your vehicles, our priority

We treat every vehicle as if it were our own, tailoring our service to your vehicle’s history, your organisational pressures, and your need to keep moving.

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Large truck on the open road in Invercargilll

Kind words from valued customers

Commercial Vehicle Centre Invercargill uses Keast Auto electrical division for all electrical and air con repairs.Throughout our collaboration, Keast auto has demonstrated exceptional professionalism and reliability in delivering on time service and repairs.We would highly recommend using Keast Auto electrical.

We’ve consistently received prompt, reliable service with high-quality workmanship. Communication is excellent and jobs are always completed to a high standard. Highly recommend.

Frequently asked questions

What types of vehicles do you service and repair?

Do you offer scheduled maintenance plans for fleets?

We take care of your vehicles, so you can take care of business

Reach out to our auto repair professionals for a fast, dependable service that keeps you and your business moving.

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Other ways we can help

Truck Assembly

We provide professional truck assembly services, including 5th wheel coupling solutions, guard mounting, and all associated electrical work. From component installation to final checks, we ensure your truck is assembled safely, correctly, and ready to work hard for your business.

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Fleet Maintenance & Servicing

We create personalised fleet maintenance plans to reduce breakdowns and keep your vehicles compliant. With priority booking, preventative servicing, and clear communication, we help minimise downtime and keep your business moving.

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Auto-Electrical Services

Our fully mobile auto-electrical team delivers expert diagnostics, repairs, and safety installations onsite or on the road, including lighting and air conditioning repairs. Based in Invercargill, we service Southland and Fiordland, keeping your fleet safe and compliant, wherever you are.

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Automotive Air Conditioning

When you spend most of your day driving or operating heavy machinery, you need air conditioning you can rely on. We provide complete automotive air conditioning servicing, diagnostics, and repairs for everything from utes to heavy diesel trucks and machinery, including regassing, leak detection, compressor faults, and full system repairs.

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