How much does a Freon refill cost?

The air conditioning unit in our conservatory is blowing warm air and I understand it may need regassing. Does it indicate a leak somewhere? What does a refrigerant top up cost or the cost to fix it?

Asked by Julie on 15th Aug 2026
Expert Trade Answers
"it could potentially indicate a leak yes but i would recommend a professional diagnosis first. If it is a refrigerant leak then the system will need pressure testing and the leak locating and then repairing, if it is a straight forward leak on say a flare connection then costs would be about £250-400 roughly to get the system back up and running including new refrigerant. If there is a coil leak or another failed part then repairs could be more."
Answered on 23rd Oct 2026 - Member since May 2026 - report
"average cost of a Freon refill (refrigerant recharge) typically ranges from £60 to £450, depending entirely on whether it is for a vehicle or a home HVAC system, as well as the type of gas required"
Answered on 15th Aug 2026 - Member since Aug 2026 - report
"If there is a leak it would need finding and repairing , then a refill - £500 max

Just a refill - £120-£200 depending on size of the system"
Answered on 17th Aug 2026 - Member since Aug 2026 - report
"If there is a leak it would need finding and repairing , then a refill would cost? dependant on the refrigerant
Would need to get a F-gas registered company to take a look"
Answered on 6th Nov 2026 - Member since Nov 2026 - report
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