Fleet Maintenance & Commercial Vehicle Servicing

Keeping your business on the road is vital – and at Onyx Performance in Slough, we provide reliable fleet maintenance and commercial vehicle servicing tailored to your company’s needs. Whether you run a handful of vans or a large mixed fleet, our expert technicians ensure every vehicle is safe, compliant, and performing at its best.

We work with all makes and models, from small delivery vans to heavy-duty workhorses, offering everything from routine servicing and safety checks to mechanical repairs and diagnostics. Using high-quality parts and following manufacturer service schedules, we help reduce downtime and extend the life of your vehicles.

Many businesses across Slough and surrounding areas trust us for our flexible booking, quick turnaround, and honest, cost-effective service plans. With Onyx Performance as your fleet partner, you can focus on running your business while we keep your vehicles moving.

Why Choose Onyx Performance?

As Seen on Carwow

We’ve been proudly featured on Carwow – a testament to the quality, professionalism, and performance-focused results that set us apart. Watch our feature here to see us in action.

Expertise You Can Trust

With years of experience and deep technical knowledge, our team understands performance vehicles inside and out – from custom remaps to high-end servicing.

Advanced Workshop & Tools

We operate from a state-of-the-art facility in Slough, equipped with cutting-edge diagnostics, dyno testing, and industry-leading tools for accurate, high-quality work.

Tailored Solutions for Every Vehicle

We don’t believe in one-size-fits-all. Every car gets a bespoke approach, ensuring the best results whether it’s a remap, upgrade, or routine service.

Trusted Nationwide

Performance enthusiasts from across the UK come to Onyx because they know they’ll receive premium-quality workmanship, careful attention to detail, and honest advice.

Complete Care, All in One Place

From tuning and servicing to tyres, trackers, and immobilisers – we offer a full suite of services under one roof, all with a strong focus on safety, reliability, and top-tier customer support.

Customer Reviews

Keep Your Fleet Running Smoothly in Slough

From vans to commercial vehicles, Onyx Performance in Slough offers expert servicing and repairs to keep your business on the road. Book your fleet maintenance plan today.

5-Star Google Reviews

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Why Choose Onyx Performance for Servicing?

Experts in Performance Cars

We know how to properly care for performance, modified, and luxury vehicles. Our team has the skills and experience to handle specialist requirements confidently.

Correct Service Schedules

Every service follows the exact schedule recommended by your vehicle’s manufacturer, helping maintain performance and protect your warranty.

Quality or OEM Parts

We only use high-quality aftermarket or original manufacturer parts, ensuring long-lasting reliability and top-level performance.

Full Vehicle Inspection

Our service goes beyond just changing oil. We inspect all key systems to keep your car safe, smooth, and road-ready.

Honest Advice, No Surprises

With transparent pricing and expert recommendations, you’ll always know what your car needs – no upselling, no hidden fees.

Fast, Trusted & Tracked

We offer quick turnaround, maintain service records, and send reminders – that’s why customers travel to us from across the UK.

Frequently Asked Questions

Do you offer servicing for all types of commercial vehicles?

Yes – we service vans, light trucks, and mixed fleets across all makes and models.

Can you service multiple vehicles at once?

We can schedule servicing for multiple vehicles to minimise downtime for your business.

Do you provide service plans for fleets?

Yes – we create tailored service plans to suit your mileage, usage, and budget.

Can you carry out MOT preparation for fleet vehicles?

Absolutely – we ensure your vehicles are MOT-ready and can arrange testing if needed.

Do you offer emergency repairs for fleet customers?

Yes – we prioritise urgent repairs to get your vehicles back on the road quickly.

Will you keep service records for our fleet?

Yes – we maintain detailed records of all work carried out, helping you stay compliant and organised.

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