Buying refrigerant gas in the UK involves more than simply placing an order. F-Gas regulations impose certification requirements on both buyers and sellers, and not all suppliers operate within the rules. This guide explains exactly what you need — and what to watch out for — when purchasing refrigerant gas for HVAC and refrigeration work in 2025.
The Legal Framework: Who Can Buy and Sell Refrigerant in the UK?
UK F-Gas legislation (the retained EU Regulation 517/2014) imposes strict requirements on the supply chain for fluorinated refrigerants:
- Buyers must hold valid F-Gas certification (Category I for stationary systems; Category II for vehicle AC) to purchase regulated refrigerants
- Sellers must verify buyer certification before completing a sale — selling to an uncertified individual is an offence
- Both parties must keep records of purchases and sales for a minimum of five years
This applies to all common refrigerants: R32, R410A, R404A, R407C, R134a, R1234yf and others. It does not apply to non-fluorinated refrigerants such as R290 (propane) or R744 (CO₂) — though these have their own handling requirements.
What to Check Before Buying from Any Supplier
1. F-Gas Company Registration
Any company supplying regulated refrigerants should be registered as an F-Gas company. Ask for their F-Gas registration number or look it up on the F-Gas Register (fgasregister.com). An unregistered seller cannot legally supply regulated refrigerants.
2. Certification Verification Process
A compliant supplier will ask for your F-Gas certification number or registration before fulfilling an order. If a supplier never asks for certification, they may not be operating legally — and any gas purchased from them may be of unknown provenance and purity.
3. Refillable Cylinders Only
Disposable (single-use) refrigerant containers for most common HFCs are banned under UK and EU F-Gas regulations. Compliant refrigerant must be supplied in refillable cylinders. If you encounter a seller offering common refrigerants in small disposable cans (typically under 1 kg), this is a red flag for non-compliance.
4. Purity Certificate
Professional-grade refrigerant should meet minimum purity standards (typically 99.9% for most HFCs). Ask your supplier for a gas analysis or purity certificate for batch-sensitive applications. Sub-standard refrigerant containing moisture, non-condensable gases or incorrect blend ratios can damage compressors and void equipment warranties.
5. Correct Labelling
UK regulations require refrigerant cylinders to be correctly labelled with the refrigerant type, GWP, hazard information, and supplier details. Cylinders without proper labelling should be refused.
Refrigerants Available from Refrigerant Gas Supplies Ltd
Refrigerant Gas Supplies Ltd, based in Wakefield, Yorkshire, is a fully F-Gas compliant UK refrigerant supplier. We supply all of the following to F-Gas certified engineers with next-day mainland UK delivery:
- R32 9 kg — standard for all new UK AC installations. GWP 675. A2L.
- R410A 10 kg — for servicing existing R410A systems. GWP 2,088. A1.
- R404A 10.9 kg — commercial refrigeration service gas. GWP 3,922. A1.
- R407C 10 kg — R22 retrofit for legacy AC and heat pump systems. GWP 1,774. A1.
- R134a 13.6 kg — pre-2017 vehicle AC and commercial refrigeration. GWP 1,430. A1.
- R1234yf 5 kg — 2017+ vehicle AC systems. GWP 4. A2L.
All gases are supplied at 99.9% minimum purity in correctly labelled refillable cylinders. Call +44 7988 028925 for trade and wholesale pricing.
Frequently Asked Questions
Can I buy refrigerant gas without F-Gas certification in the UK?
No. Valid F-Gas certification is required to purchase regulated refrigerants. Selling to an uncertified buyer is also illegal. Refrigerant Gas Supplies Ltd verifies certification before fulfilling orders.
Are disposable refrigerant cans legal in the UK?
Disposable containers for common HFC refrigerants are banned under UK F-Gas regulations. All compliant refrigerant is supplied in refillable cylinders. Disposable cans from any source should be avoided as they indicate likely non-compliance.
How do I verify that a refrigerant supplier is F-Gas compliant?
Check the F-Gas Register (fgasregister.com) for company registration. A compliant supplier will verify your certification before sale, supply gas in labelled refillable cylinders, and provide purity documentation on request.
Does the purity of refrigerant gas matter?
Yes. Sub-standard refrigerant can damage compressors, degrade performance and void equipment warranties. Always specify 99.9% minimum purity and ask for a purity certificate for critical applications. Refrigerant Gas Supplies Ltd supplies all gases at 99.9% minimum purity.