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Gas safe cards

All Gas Safe registered engineers carry a Gas Safe ID card. Don’t ever be afraid to ask to see it when they arrive at your property to carry out gas work – and remember to check the front and back of the card. 

Watch this video to find out more. 


Details to check on the front of the card: 

  • The engineer's photo
  • The start and expiry dates
  • The licence number
  • The security hologram
  • The engineer is from the business you employed

Details to check on the back of the card: 

  • The engineer is qualified to carry out the gas job you’ve employed them to do
  • Their qualifications are up-to-date


For more information on specific qualifications, please refer to our guide to the Gas Safe ID card.

Check your engineer is Gas Safe registered by using our online check an engineer service, calling us on 0800 408 5500 or texting GAS and the engineer licence number to 85080. Please note – standard network charges may apply to this service.

If you suspect a gas fitter is working illegally you can report them using our online form or contact us on 0800 408 5500.