Air Conditioning Service

Air Conditioning Service – Car A/C Regas & Repairs

A well-functioning air conditioning system keeps your car comfortable in summer, helps demist windows in winter, and improves overall driving comfort. At Onyx Performance in Slough, we provide expert A/C servicing, re-gassing, and repairs for all makes and models. Whether your system isn’t cooling properly, has developed an unpleasant smell, or has stopped working altogether, we’ll get it back to peak performance.

Our technicians use advanced A/C diagnostic equipment to check for leaks, assess refrigerant levels, and ensure all components are running efficiently. From a simple re-gas to repairing compressors, condensers, and pipework, we use only high-quality parts and refrigerants that meet UK environmental standards.

Drivers from across Slough and surrounding areas trust Onyx Performance for our fast turnaround, competitive pricing, and expert knowledge. With regular maintenance, your air conditioning will keep you cool in the summer and clear-headed in every season.

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

Book Your Car Air Conditioning Service in Slough

Stay cool and comfortable on the road with professional A/C servicing from Onyx Performance in Slough. We offer fast re-gassing, leak detection, and repairs – book your service today.

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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

How often should I have my car’s A/C serviced?

We recommend servicing your air conditioning every 1–2 years to maintain efficiency, prevent leaks, and avoid expensive repairs.

What are the signs my A/C needs re-gassing?

If your A/C is blowing warm air, takes a long time to cool, or has reduced airflow, it’s likely time for a re-gas.

Can you repair A/C leaks?

Yes – we use specialist equipment to detect and fix leaks before recharging your system, ensuring long-lasting performance.

Is A/C gas included in your regas service?

Yes – our regas service includes the correct refrigerant type for your vehicle, along with a system check.

Does using A/C affect fuel consumption?

Yes, but only slightly – a properly maintained system runs more efficiently and minimises the impact on fuel economy.

Do you work on all types of refrigerant gas?

We service both R134a and R1234yf systems, covering most vehicles on the road today.

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