Gas safety gas emergency advice

If you smell gas/fumes or suspect that an appliance is giving off carbon monoxide fumes then telephone the national gas emergency number on 0800 111 999 or 0800 371 787 (for minicom or textphone users who are deaf or hearing impaired) from a telephone outside of the property.

Next steps:

  • Turn off the gas at the meter (make sure the valve is set to the off position)
  • Open the windows and doors to increase air ventilation
  • Put out any naked flames, such as cigarettes or candles
  • Don’t use electricity switches
  • Get everyone out of the property and stay out
  • Telephone us on 0345 604 1472 once Cadent have attended so we can send out a Gas Safe Registered installer to carry out any further repairs
  • If you are worried someone may have carbon monoxide poisoning, immediately telephone 999 for medical help and ask for an ambulance.

Using gas appliances in your home is normally very safe and problem free but they must be serviced on a regular basis to make sure they are working safely and effectively.

Gas can be a dangerous substance and we want to make sure you are safe in your home.

Gas safety tips

Do not…

  • Fit a gas appliance yourself. It is illegal and could seriously harm you and others around you, and you could be liable for a fine of up to £5,000
  • Use a gas appliance if you notice a yellow or orange flame (except living flame fires)
  • Use a gas appliance if you notice soot or stains around the appliance
  • Cover the appliance or block the air vents, air bricks and/or outside flues
  • Interfere with safety valves or other fittings
  • Use gas appliances other than for their intended purpose and according to manufacturers’ instructions. For example: do not use a gas oven to heat a room
  • Leave your gas heater on when you leave the house or go to sleep
  • Leave young children unsupervised near heaters or any gas appliance.


  • Always keep your gas safety check appointment so we can inspect your gas equipment. If you are going to miss your appointment then please let us know and we’ll arrange a new one as soon as possible
  • Allow our Gas Safe Registered engineers access to your home to complete the free gas safety check and service
  • Keep your copy of the Gas Safety service certificate
  • Get our permission if you want to replace a gas appliance and always make sure you use a Gas Safe Registered engineer
  • Fit an audible carbon monoxide alarm (we will only fit these to open-flued appliances)
  • Look out for lazy yellow or orange flames instead of crisp blue ones, black marks on or around the appliance and too much condensation in the room – they could mean your gas appliance has a fault
  • Know the signs and symptoms of carbon monoxide poisoning – headaches, dizziness, breathlessness, nausea, collapse and loss of consciousness
  • Telephone the free national gas emergency number on 0800 111 999 from a telephone outside of the property if you smell gas
  • Turn off your gas appliance if you think it is faulty and contact us immediately on 0345 604 1472.
  • Seek medical help immediately if you feel unwell.


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