Aircon Gas Refill & Air Con Regas
An aircon gas refill (air con refill) restores the correct refrigerant charge after a leak has been diagnosed and repaired. We arrange F-Gas certified engineers for home and commercial AC, with prices from £120 plus VAT and a fixed quotation before work starts.
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What our air con refill service covers
An air con refill is a refrigerant service for a sealed cooling circuit, not a replacement for cleaning filters or maintaining the equipment. We arrange an engineer to inspect the indoor and outdoor units, check the system information and investigate why performance has fallen. Home wall splits, multi-split systems and commercial air conditioning can be assessed; suitability depends on the equipment and its condition.
All refrigerant work is carried out by F-Gas certified engineers in accordance with the Fluorinated Greenhouse Gases Regulations 2014 and applicable refrigerant-handling requirements. The engineer confirms what is needed before recovery, repair or recharge. This page covers building air conditioning, not car air conditioning or vehicle regassing.
Signs you may need an AC refill
Warm air, unusually slow cooling, ice on a coil or pipe, and repeated low-pressure faults can indicate a refrigerant problem. Oily marks around pipe joints may also warrant investigation. However, dirty filters, restricted airflow, faulty controls or a damaged fan can produce similar symptoms. An AC refill should follow diagnosis rather than an assumption that every cooling fault means low gas.
If cooling suddenly deteriorates or the unit repeatedly faults, stop using it and arrange an inspection. Tell us the model, symptoms and any fault code when you call. Photographs of the equipment label help identify the system without guessing its refrigerant or charge weight.
Our aircon refill process
First, the engineer identifies the equipment and checks its operating condition. Next, they investigate refrigerant loss and explain any necessary repair. A leaking circuit needs attention before it is recharged; simply adding more gas leaves the cause unresolved. Repairs, access requirements and replacement parts are agreed in the quotation.
Where appropriate, the engineer recovers refrigerant, repairs the fault, pressure-tests the circuit and evacuates it before introducing a weighed charge to the manufacturer's specification. Final operating checks establish whether the system is cooling correctly. Relevant service records are updated, and you receive advice on monitoring performance. The sequence depends on the fault: a damaged coil or inaccessible pipe may need separate repair work before recharge can proceed.
Aircon gas: AC topup and compatible refrigerants
An AC gas topup must use the refrigerant specified for the equipment. R32, R410A and R407C are encountered in air conditioning, but they are not interchangeable. The data plate and manufacturer instructions determine the appropriate refrigerant and charging procedure. Never mix gases or use a different refrigerant because it is cheaper or readily available.
R22 cannot legally be used to recharge an existing system; older equipment needs specialist assessment of replacement options. Refrigeration equipment may use R404A, R448A or R449A, which involves different applications and servicing restrictions. Those gases are not substitutes for an AC refill. If your enquiry concerns a cold room or cellar cooler, identify that equipment when requesting a quote so the correct service can be arranged.
Air con regas coverage and local appointments
Ask about air con regas in London, Surrey, Berkshire, Middlesex, Kent, Essex, Sussex, Hertfordshire and Buckinghamshire. Enquiries include Egham, Windsor, Walton-on-Thames, Weybridge, Staines, Ealing and Croydon. Appointment availability depends on your postcode, the equipment and the engineer required; a town listing is not a promise of immediate attendance.
For a useful quotation, provide the property postcode, number of indoor and outdoor units, model details and known service history. Mention roof access, restricted parking, landlord permissions or business opening hours. We arrange the visit with a suitable local engineer and confirm the proposed scope, rather than treating every home or commercial system as the same job.
How much does an air con refill cost?
Air con regas and refill prices start from £120 plus VAT. The starting price is not a universal charge for every system or every leak repair. Refrigerant type and quantity, fault diagnosis, replacement parts, access and the size of the circuit affect the final quotation. Multi-split and VRF equipment can require more investigation and refrigerant than a small single split.
Ask for a fixed written quotation setting out what is included and whether repairs or further visits are needed. Work proceeds only after the scope and price are agreed. If a major repair would be poor value compared with replacing ageing equipment, discuss both options before committing to a recharge.
| Service | Starting price |
|---|---|
| Air con regas and refill | From £120 plus VAT |
Air con refill frequently asked questions
How much does an air con refill cost?
Prices start from £120 plus VAT. The final fixed quotation depends on refrigerant quantity, the fault, access and any repairs required; the starting price does not cover every system.
How often does AC need regassing?
A leak-free sealed system does not consume refrigerant and should not need routine regassing. Repeated refills indicate a fault that should be investigated, not a normal annual service requirement.
Are air con refill, AC refill and aircon refill the same service?
These terms describe restoring the refrigerant charge. For building air conditioning, diagnosis and any necessary leak repair come before recharge. We do not offer vehicle air conditioning refills.
Can I get aircon gas topped up without a leak check?
The engineer must investigate refrigerant loss before deciding how to recharge the circuit. Adding gas without addressing a leak can leave the fault unresolved and waste refrigerant.
Which refrigerants can an F-Gas engineer assess?
Air conditioning may use R32, R410A or R407C. The engineer checks the equipment label, manufacturer instructions and current servicing requirements. Refrigeration gases such as R404A, R448A and R449A need a separate equipment-specific assessment.