Is your business F GAS compliant? TDC offer a free site survey checking business compliance making valuable recommendations when necessary. Fluorinated gases otherwise known as F-gases, are man-made gases that come in four types: hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6) and nitrogen trifluoride (NF3).

F Gas Rules & Regulations

Hydrofluorocarbons (HFCs and HCFCs) are a type of Fluorinated gases (F Gas) present in air conditioning and refrigeration equipment.

If they escape into the atmosphere they have a negative impact on the environment. DEFRA maintains a constant review of F Gas use and its effect on climate change. Businesses are required to keep accurate records of testing of F Gas leaks in their equipment.

Leak testing of air conditioning and refrigeration equipment is a legal requirement and has to be carried out by an engineer who is DEFRA approved with a EQCC certificate issued by Refcom.

Compliance is enforced by the Environmental Agency and local councils and where businesses are not able to show the records of F Gas testing fines can be considerable.

Frequency of Checks:

  • R410A (2088 GWP) more than 2.39kg once a year, 23.9kg twice, more than 239kg four times
  • R407C (1774 GWP) more than 2.81kg once a year, 28.1kg twice, more than 281kg four times
  • R404A (3922 GWP) more than 1.27kg once a year, 12.7kg twice, more than 127kg four times
  • R134a (1430 GWP) more than 3.49kg once a year, 34.9kg twice, more than 349kg four times

Ensure your compliance with a TDC Maintenance Plan.

We offer maintenance plans to ensure F Gas compliance for all your air conditioning and refrigeration equipment. Our Refcom certified engineers will conduct scheduled visits to your business premises, check your equipment and ensure all the paperwork is in order.


We provide a 24 hour call-out service, 365 days a year, for any system failure. During office hours, you should call our regular daytime number: 01244 455814 or alternatively send us an email.