If your car's air-con is blowing warm or just isn't as cold as it used to be, the cause is almost always lost refrigerant. The fix is an aircon regas — but the price you should pay depends entirely on what gas your car uses.
Typical UK price
£60 – £200
Depending on refrigerant type and any repairs needed
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The single biggest factor in the price of an aircon regas is the refrigerant type your car uses — and that's determined by when it was registered. There's a huge price gap between the two, so it's worth knowing which one applies to you before you phone round for quotes.
R134A refrigerant
£60 – £95
Found in most cars registered before 2014. The gas itself is cheap (~£8/kg) and most independent garages can do this in 30 minutes.
R1234YF refrigerant
£130 – £200+
Standard in all new cars from 2017. The gas costs garages around £100/kg, and the recovery equipment is far more expensive — that's why the price is so much higher.
If you're between 2014 and 2017, the refrigerant could be either — the label under your bonnet will say. Most garages check this as part of the service and won't commit to a price until they know.
Even a perfectly healthy aircon system loses refrigerant slowly over time. Manufacturers typically recommend a regas every 2 years as preventive maintenance. The warning signs that you're overdue:
A standard aircon regas at a UK garage should include:
A regas does not include repairs. If the vacuum test reveals a leak, the garage will quote separately for the repair — typically a condenser, hose or O-ring seal. Expect anywhere from £80 for a simple O-ring replacement up to £400+ for a condenser.
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Typical UK aircon regas prices range from £60 for an older R134A system to £130–£200+ for a newer R1234YF system. The refrigerant type — determined by your car's age — is the single biggest factor in the price.
Most manufacturers recommend an aircon service every 2 years, even if the system seems to be working fine. Refrigerant gas slowly leaks from the system over time, and a regular regas keeps the system efficient and prevents long-term damage to compressor seals.
R1234YF was introduced from 2011 (mandatory in new cars from 2017) because of stricter EU rules on greenhouse gases. The refrigerant itself costs garages around £100/kg vs. about £8/kg for the older R134A — and that cost is passed on. The equipment to handle it is also more expensive.
Most cars registered before 2014 use R134A. Most cars from 2017 onwards use R1234YF. Between 2014 and 2017 it varies by make and model — a garage will check the label under the bonnet before they start. Enter your reg above and we'll show you the year so you have a sensible starting point.
A regas only replaces lost refrigerant. If the air-con isn't cold after a regas, the system probably has a leak (refrigerant has escaped again), a failed compressor, a blocked condenser, or an electrical fault. Most reputable garages will test for leaks as part of the service.
Yes. Spring (April–June) is the smart time to regas. Garages are less busy than peak summer, you avoid the surge in demand, and you'll know your air-con works before you actually need it on a hot day. Some garages even offer pre-summer aircon offers.
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