Air Con Regas near Purley, from Our Hackbridge Workshop

Purley's steep side roads and the queues on the A22 Godstone Road put an air conditioning system under more strain than flat, open driving. Our Hackbridge workshop is about 15 minutes from Purley, and a regas with a full vacuum and leak test takes around 45 to 60 minutes.

  • ★★★★★ 4.9/5 from 87 Google reviews
  • ~15 min from Purley
  • Mon–Sat 8am–8pm
Range Rover Velar in for cooling system work at KITH Cars Garage & Bodyworks, Hackbridge

Low-mileage cars, steep roads and slowly fading air con

Plenty of cars in Purley do low mileage. Some belong to older residents who drive to the shops by Purley Cross and back, others sit on the drive in Riddlesdown or the Webb Estate for days at a time. Low use does not preserve an air conditioning system. The refrigerant carries a little oil that keeps the compressor shaft seal and the O-rings supple, and when a system is rarely switched on, those seals can dry and let refrigerant seep out. It is common for a car with modest mileage to arrive with barely half its charge.

Then there are the hills. Climbing out of the valley on roads towards Riddlesdown or up Foxley Lane puts the engine under load, and many cars cut the compressor momentarily at heavy throttle. With a full charge, cooling returns quickly. With a low one, the cabin warms on every climb and stays warm, and queuing on the A22 Godstone Road towards the gyratory does nothing to help, as the condenser gets little airflow at a standstill.

A regas with us starts with confirming the refrigerant type from the under-bonnet label, since many of the newer family cars and premium models in Purley use R1234yf. We recover and weigh the old charge, then hold the system under vacuum to boil off moisture and prove it is sealed. The recharge is done by weight, with the correct oil, and we check the vent temperature before handing the car back. If the vacuum test fails, you get a written quote for the leak repair first.

From Purley Cross, head up Foxley Lane through Woodcote, turn right onto Woodcote Road and follow the A237 north through Wallington to Hackbridge. It is about 15 minutes. Near the War Memorial Hospital and prefer not to drive? We can arrange collection, and any repair that follows is covered by our 3-month workmanship warranty.

Air Conditioning Regas: what’s involved

Car air conditioning works by pumping refrigerant round a sealed circuit. The compressor, driven by the engine or, on hybrids and electric cars, an electric motor, squeezes the refrigerant into a hot, high-pressure gas. It cools and condenses in the condenser at the front of the car, then expands through a valve into the evaporator behind the dashboard, where it absorbs heat from the air blowing into the cabin.

Cars built before around 2013 almost all use R134a. Most cars from about 2017 onwards use R1234yf, which has a far lower environmental impact, and some models switched earlier. The two are not interchangeable and need different equipment. Every system loses a little refrigerant over time through seals and hoses, so cooling gradually fades. The refrigerant also carries the compressor's lubricating oil, so running low affects more than comfort.

From £49Written quote first
45–60 minutesTypical time in the workshop
3 monthsWorkmanship warranty
4.9★87 Google reviews

Signs your air conditioning needs attention

Air not as cold as it was

Gradually weaker cooling over a few summers usually means the refrigerant charge has dropped, which a regas can put right.

Only cold at speed

Cooling that is fine on the move but weak at idle can point to a low charge, a condenser fan fault or a blocked condenser.

No cold air at all

If the air is warm, the system may be nearly empty and the compressor won't engage. A fast loss like this points to a leak that should be found first.

Windows slow to demist

The air conditioning dries the air, which is why it clears a misted windscreen quickly. Weak demisting can be a sign the system isn't working.

Noise when the AC is on

A rattle, grind or squeal when the air conditioning switches on can point to a worn compressor, compressor clutch or drive belt.

Musty smell from the vents

A damp, stale smell often comes from bacteria on the evaporator or a dirty cabin filter rather than the refrigerant itself.

Compressor clutch not engaging

On belt-driven compressors, the clutch on the front should click in when you press the AC button. If it doesn't, the pressure may be too low or there is an electrical fault.

When should it be done?

Most systems benefit from a regas every two to three years, as some refrigerant escapes naturally through seals and hoses. Book sooner if you notice cooling getting weaker. If the air conditioning has stopped cooling within weeks or months of a previous regas, there is a leak, and topping it up again will only waste refrigerant. In that case we recommend a leak test with UV dye before recharging.

  • Every 2–3 years as general maintenance
  • When cooling becomes noticeably weaker
  • Before summer if you had weak cooling last year
  • After any repair that opens the system, such as a new condenser or compressor
  • Leak test first if cooling was lost soon after a previous regas

How we regas air conditioning

  1. Check-in and refrigerant typeWe check the label under the bonnet to confirm whether your car uses R134a or R1234yf, and the quantity the manufacturer specifies.
  2. Performance checkWith the engine running we check vent temperature, compressor engagement and the condenser fan, and look for obvious damage or oily leak marks.
  3. Recover old refrigerantOur machine recovers the remaining refrigerant and weighs it, which tells us how much the system had lost. Refrigerant is never vented into the air.
  4. Vacuum and leak testThe system is held under vacuum to boil off moisture, then monitored to see if it holds. A system that loses vacuum has a leak and needs repair before recharging.
  5. Recharge by weightWe refill with the exact weight of refrigerant the manufacturer specifies, plus the correct compressor oil. UV dye can be added to help trace slow leaks later.
  6. Test and verifyWe run the system and check vent temperature and pressures to confirm it is cooling properly and the compressor is cycling normally.
  7. HandoverWe tell you how much refrigerant was recovered and whether that suggests a leak, so you know if further investigation is worthwhile.

Refrigerant and oils we use

We use the refrigerant your car was designed for, either R134a or R1234yf, and charge it by weight to the manufacturer's figure, since overfilling is as bad for performance as underfilling. The compressor oil must match too: PAG oil of the correct grade for most belt-driven compressors, and POE oil for many hybrid and electric cars with electric compressors, because the wrong oil can damage them. Replacement parts are OE or OE-equivalent.

  • R134a or R1234yf refrigerant, matched to your car
  • Compressor oil to the correct type and grade, including POE for electric compressors
  • UV leak detection dye where appropriate
  • OE or OE-equivalent condensers, compressors, valves and seals, quoted separately

How long it takes

45–60 minutes

A straightforward regas takes around 45–60 minutes including the vacuum and leak test. If a leak is found, finding and repairing it takes longer and may need parts ordering.

What’s included

  • Refrigerant type and system check
  • Recovery and weighing of old refrigerant
  • Vacuum and leak-down test
  • Recharge by weight to manufacturer specification
  • Compressor oil top-up
  • Vent temperature and performance test

From Purley to our Hackbridge workshop

From Purley Cross head west up Foxley Lane (A2022) through Woodcote to the mini-roundabout with Woodcote Road and Smitham Bottom Lane (A237). Turn right onto Woodcote Road (A237) and follow the A237 north through Wallington as it becomes Manor Road and then London Road into Hackbridge; Soho Mills is on the right.

From Purley Cross take Foxley Lane (A2022) up through Woodcote, then Woodcote Road (A237) north through Wallington to Hackbridge, about 15 minutes. Collection is available if you would rather avoid the gyratory at peak times.

Directions from Purley

About Purley

Purley is a green, hilly suburb on the edge of the North Downs about three miles south of Croydon, which grew rapidly in the 1920s and 1930s as a place of spacious homes. Its small town centre sits in a valley around Purley Cross, where the A23, A22, A235 and A2022 all meet, while the surrounding roads climb up to detached and semi-detached houses in Woodcote, Russell Hill, Riddlesdown and the private Webb Estate. It feels quieter and more affluent than central Croydon, but the Purley Cross gyratory is a well-known bottleneck and many side roads are steep and winding.

Places nearby: Purley Cross, Purley station, Purley War Memorial Hospital, Webb Estate, Promenade de Verdun, Russell Hill school buildings

Postcodes: CR8 · London Borough of Croydon

More about KITH for Purley drivers

Air Conditioning Regas in Purley: your questions answered

My car does very few miles. Why has the air con stopped working?

Low use can actually speed up refrigerant loss, because the oil that keeps seals supple is only circulated when the system runs. We weigh what we recover, which tells you whether it is gradual seepage or a leak that needs fixing.

Why does the car get warmer climbing out of Purley?

Many engines switch off the compressor briefly at heavy throttle to give full power to the wheels. A healthy system recovers as soon as you ease off, but a low charge leaves the cabin warm, which a regas usually cures.

Can you collect my car from the Webb Estate or Riddlesdown?

Yes, we can pick the car up from home and return it afterwards. We will confirm the refrigerant type and the price before starting, and let you know if the leak test shows anything that needs further work.

Which refrigerant does my car use?

Check the sticker under the bonnet, usually on the slam panel or near the radiator. As a rough guide, most cars before about 2013 use R134a and most from about 2017 use R1234yf, with some models changing in between. We always confirm before starting.

Can R134a be put in an R1234yf system, or the other way round?

No. The systems use different service connectors, different oils and are designed around different pressures and properties. Mixing or converting refrigerants isn't something a reputable garage should do.

Will a regas fix a leak?

No. A regas refills the system, but if it is leaking the charge will drop again. If cooling disappeared quickly after a previous regas, we recommend a leak test with UV dye so the leak can be found and repaired first.

Why does the price differ between cars?

R1234yf is considerably more expensive than R134a, and systems hold different amounts of refrigerant. We confirm the refrigerant type and the price before we start work.

Should I run the air conditioning in winter?

Yes. Running it for a few minutes regularly keeps oil circulating to the compressor and seals, and it dries the air so the windows demist faster. Many cars run it automatically when you select demist.

Price your air conditioning regas now

Enter your reg and we’ll look up your car and price the job from our own labour rates and the book time for your model. Then book it in with a fixed written quote before any work starts.

  • Free, about 30 seconds, no sign-up
  • Parts, labour and VAT included
  • 3-month workmanship warranty
  • Collection from Purley can be arranged
“It’s rare to find a garage you can truly trust. Fair price, brilliant customer service.”Thinushan K. · ★★★★★ Google

Prefer to talk? Call 020 4629 9469 or WhatsApp us.

Loading instant quote…
Chat on WhatsApp