Slough's specialists in
Car Air Conditioning.
A/C re-gas, leak detection, compressor and condenser replacement. R134a and R1234yf in stock. No nonsense. No hidden prices. Book in today.
⭐⭐⭐⭐⭐ 4.9 out of 5 from 500+ Google reviews. Trusted by drivers across Slough since 2019
- ✓6 months interest-free, up to £3,000
- ✓Same-day slots available in Slough
- ✓R134a & R1234yf gas in stock
Air-con not cold any more? Nine times out of ten it's lost gas. But if you just re-gas without finding the leak, you'll be back in six months. At Onyx in Slough we vacuum-test the system, dye-trace any leaks, and only then re-gas with the correct refrigerant.
Why book car air conditioning with Onyx in Slough?
- R134a and R1234yf. we hold both gases. Newer cars need the more expensive one.
- Vacuum and leak test first. find the leak before throwing gas at it.
- Condenser & compressor work. in-house. No farming out.
- Cabin filter check included. a smelly cabin is usually a tired pollen filter.
- Pay over 6 months, interest-free. first payment at booking, 5 more monthly, interest-free, compressor jobs covered up to £3,000.
What a proper aircon service includes
We see a lot of weak A/C on cars from Staines and Burnham in the summer. Usually a tired compressor on the older VAG range. Re-gas alone is about an hour; full leak hunt and compressor swap takes longer but we'll keep you posted.
Same-day re-gas slots most weeks. Call before 11am for the best chance.
Stop suffering in a hot car. Call 01753 439115 or WhatsApp 07393 580281.
Car Air Conditioning in Slough and across Berkshire
Onyx Autocentre is based in Slough, Berkshire and we look after cars from across the SL postcodes every day. Whether you're driving in from central Slough, Langleyor Colnbrook, we'll book your car air conditioning around your schedule. Same Slough workshop, same trusted team, same standard on every car air conditioning job.
All our services
Every service we offer at our Slough workshop. Tap a tile to find out more.
- Air Bag RepairsFind out more
- Alloy Wheel Crack WeldingFind out more
- Alloy Wheel RefurbishmentFind out more
- Alloy Wheel WeldingFind out more
- Auto ElectricsFind out more
- Body Kit FittingFind out more
- Boost Leak & Smoke TestFind out more
- CambeltsFind out more
- Car Air ConditioningFind out more
- Car BatteriesFind out more
- Car BrakesFind out more
- Car ExhaustsFind out more
- Car ModificationsFind out more
- Car RepairsFind out more
- Car Safety ChecksFind out more
- Car ServicingFind out more
- Car TyresFind out more
- Carbon CleaningFind out more
- Cheap Car TyresFind out more
- Clutch ReplacementFind out more
- Diesel Performance ECU TuningFind out more
- Diesel TuningFind out more
- Dyno TestingFind out more
- ECU RemappingFind out more
- Engine DiagnosticsFind out more
- Engine ManagementFind out more
- Engine RebuildsFind out more
- Engine TuningFind out more
- Fleet MaintenanceFind out more
- Gearbox ServicingFind out more
- Gearbox TCU RemappingFind out more
- Haldex ServicingFind out more
- Head Gasket RepairsFind out more
- In-Car EntertainmentFind out more
- Mechanical RepairsFind out more
- MOT Failure RepairFind out more
- Nitrogen Oxide (NOx) Sensor RepairsFind out more
- Number PlatesFind out more
- Oil & Filter ChangeFind out more
- Parking SensorsFind out more
- Powder Coating for Alloy WheelsFind out more
- SteeringFind out more
- SuspensionFind out more
- Timing Belt ReplacementFind out more
- Trade Alloy Wheel RepairFind out more
- Turbo Intake CleaningFind out more
- Van Repairs & ServicingFind out more
- Vehicle SecurityFind out more
- Wet Belt ReplacementFind out more
- Wheel BalancingFind out more
- Window TintingFind out more
What Our Customers Say
Rated 5 Stars on Google by drivers across Slough and Berkshire
"Took my BMW here for an oil change and oil filter and the service was spot on. Really friendly team, got the car booked in quickly and the job was done properly with no hassle."
"Highly recommend this garage. After contacting a few other garages who didn't want to take my car in for diagnostics, these guys were happy to help. They diagnosed and fixed an engine fuel leak issue professionally and efficiently. Great service and very reliable. I'll definitely use them again."
"Very nice experience at Onyx — they took me in immediately and completed the DRL module swap efficiently. I have no regrets and would highly recommend."
"I brought my car to Onyx after visiting many other mechanics who failed to sort out issues with my vehicle. The mechanics here clearly explained the issues with the vehicle and fixed them quickly. Amazing service and wonderful people, highly recommend."
"These guys are always polite and welcoming. I've taken multiple vehicles here and the service received has been excellent."
"Had the front pads done here over the weekend. Second time in with Onyx and service has been top notch both times. On time, no hassle and cost effective. Highly recommend."
"Max and Ben are extremely professional and did an excellent repair on my wife's car at a great price. Max spotted the problem within 6 hours, which 2 other garages could not detect."
"I took my car to Onyx and met Ben who was friendly and I got the problem diagnosed by Ben which I had a faulty water pump. I was quoted a reasonable price and got it replaced. I was satisfied and would recommend Onyx."
"Great service, sorted out my alloy refurb at a good price and quick turnaround. Top service, highly recommend."
"A great experience with Onyx who fitted a new clutch for my Fiat 500. Super quick, friendly and well priced. Would highly recommend."
"Very friendly, no hassle effective service. Definitely recommend and will use when I need to get my alloy wheels refurbished."
"Brought my Audi S3 in for a coolant leak — the part was on back order but they managed to source one in a couple of days. Massive thanks to Ben."
"My vehicle went in for a brakes job and Ben and the team at Onyx Autocentre did an amazing job. Highly recommended."
Spread the cost over 6 months, interest-free.
Big bill? Pay the first instalment when you book, then spread the rest across up to 5 more monthly instalments, interest-free. Available on jobs up to £3,000. No setup fees, no hidden interest. FCA-authorised through Payment Assist, soft credit check, decision in minutes.
- ✓ Up to 6 months interest-free
- ✓ Available on jobs up to £3,000
- ✓ First payment at booking, rest split monthly
- ✓ Soft credit check, decision in under 2 minutes
- ✓ No setup fees, no hidden interest
Specialist car air conditioning pages
R134a air conditioning re-gas at our Slough workshop for cars made before 2017. Vacuum tested, dye traced, honest pricing for drivers across Berkshire.
R1234yf air conditioning re-gas at our Slough workshop for cars made from 2017 onwards. Dedicated R1234yf station, vacuum tested, honest Berkshire pricing.
Aircon leak detection at our Slough workshop. UV dye trace, electronic sniffer test, vacuum hold test. Find the leak instead of paying for another re-gas in Berkshire.
Aircon blowing warm in Slough? We pump down, vacuum test and diagnose the real cause at our Berkshire workshop. Honest answers, no auto re-gas upsell.
Aircon antibacterial clean and pollen filter replacement in Slough. Kill the smell, restore proper airflow at our Berkshire workshop. Honest fixed price.
Other services you might need
Air-bag warning fixes, crash data resets and module repair.
TIG-welded cracked alloy repair in Slough. Pothole and impact damage put right by certified welders.
Diamond cut, full colour change and kerb-damage refurbs.
Cracked alloy welding, straightening and TIG repair.
From dead batteries to CAN-bus faults. We trace it, we fix it.
Boost leak and EVAP smoke testing in Slough. We find the split hose, cracked charge pipe or dodgy valve in minutes.
Same-day slots are limited this week.
Call or WhatsApp now and get car air conditioning today. Slough, Langley, Colnbrook, Windsor, Maidenhead, Uxbridge and Gerrards Cross.