Winter gas safety:
Keeping you safe and warm in winter

As temperatures drop, frost sets in and we spend much more time with the heating on, being prepared for winter in the home is vital, especially when it comes to gas safety. Our Winter Preparedness Guide gives you some important tips to help you ensure you’re ready for the cold weather, helping you to keep your heating working and making sure your utility bills don’t run away from you. However, there are certain things that are important to remember to help keep you safe. Here are some of our top winter home safety tips.

Flood advice

Do not switch off your gas supply at the meter, especially if your gas meter is now under water. The gas pressure in the pipes should keep the water out of the gas pipes in your home. (Unless you have an existing gas leak.)
Once the flood waters have left your home and it is safe to return to your property, if you can smell gas, experience poor pressure or have no gas please contact the gas emergency line 0800 111 999 and we will advise you on whether we will attend or redirect you to your supplier/gas safe engineer.
If water has got into your gas pipes within your home you will need to contact a Gas Safe Registered engineer to clear the system. Call 0800 408 5500 for a list of local Gas Safe Registered engineers.
What to do if you are told to evacuate your home due to flooding
There is no safety reason for you to turn off your gas supply prior to vacating your property. However, if you prefer to do so, or have been advised to do so by an authorised agency then please turn off your gas at the emergency control handle which is normally located next to your meter. Please do not attempt to do this if your meter is under water or in a cellar.
If you do turn off your gas supply please contact us again on 0800 389 8000  when you are ready to have your supply restored as this will have to be done by an appropriate qualified person.
We do recommend that you ensure your gas appliances are switched off before evacuating your property.

Home safety: important information

Being prepared is a key factor when it comes to winter home safety, this means knowing the right numbers to call and provisions to put into place beforehand, so you can avoid anything going wrong or react quickly if you do encounter any problems. Here are some key things to remember:


Avoid a frozen gas pipe

A frozen boiler condensate pipe can stop your boiler working and potentially leave you without heat or hot water. Our guide to what to do if your boiler stops working will help you troubleshoot any problems. As always, contact a Gas Safe Registered Engineer on 0800 408 5500 as soon as possible if you have any concerns.

Have your appliances checked

Having your boiler and gas appliances serviced on an annual basis is the best way to avoid potential problems arising. Having a Gas Safe Registered Engineer carry out a service on your boiler and appliances will enable them to spot any small issues before they become bigger problems. If you are having problems with your boiler are FAQs may help.

Gas supplier

The company at the top of your gas bill. If you have an annual care plan with your gas supplier they will fix any problems you might have with your gas appliances and pipework. Unsure of your supplier? Find out  via the 'Find my supplier' online tool.

If you smell gas…   

If you smell gas in the home, there could be any one of several issues. The most important thing to do is call the National Gas Emergency Service number on 0800 111 999*, we recommend saving this number in case you ever need it in the event of an emergency. Find out more about what to do if you smell gas 

Carbon monoxide leaks

Known as a ‘silent killer’, the dangers of carbon monoxide are well publicised, and with more time spent at home with less ventilation in the winter, it’s important to remain extra vigilant at this time of year. Make sure you know the signs of a carbon monoxide leak and the symptoms of carbon monoxide poisoning and what you should do if you suspect  a leak in your home.

Priority Service Register (PSR)

 If you, or anyone you know, has extra communication, access or safety needs, the Priority Service Register (PSR) can help as it allows us to know when and how we might need to adapt our actions to support those households with relevant services. In the event of a gas emergency, you will get extra services tailored to meet your needs. Find out more and get signed up before winter.

Winter fire safety

If you have a gas fire in the home, the chances are you’ll be using it much more frequently in the winter months to keep your house warm. As you may not have used your fire in some time and you’ll have it on much more often, here are some winter fire safety tips when it comes to how to winterise a gas fireplace:


  • Stains – Keep an eye out for soot or yellow-brown stains on the back of your fireplace. These sooty deposits could be a sign that your fireplace is not working properly.
  • Condensation – If excessive condensation appears on the windows of your room when the fire is on, there may be a fault with the fireplace.
  • Chimney – You should have your chimney or flue checked for blockages every year. This is vital to ensure all fumes can escape the fireplace.
As with any gas appliance, having an annual service carried out by a Gas Safe Registered Engineer is vitally important. This should help you avoid any major problems during the winter and give you peace of mind that your appliance is working as it should be and reduce the risk of a carbon monoxide leak.
Preparing your home for winter may not be something you’ve traditionally done every year, but it plays a vital role in keeping you safe and warm in the winter months. We have plenty of information available on our site to help you enjoy a warm and wonderful winter.

*All calls are recorded and may be monitored.

Further advice

Deaf mother talking sign language with her daughter

Priority customers

The Priority Services Register (PSR) helps gas and electricity  companies look after customers who have additional communication, access or safety needs. It’s free and easy to join and gives extra support to those who need it.

Register for PSR

Boiler not working?

If your boiler isn't working during the winter period, you may find yourself unsure of what to do next. We're here to keep people safe from gas leaks and deadly carbon monoxide, so if you find your boiler not working during the winter months, the following steps may help you get everything working back on track.

Boiler help

Gas safety top tips 

Here are some simple tips to help keep you stay safe and warm over the winter period.

Top tips

Useful numbers

  • Smell gas or suspect carbon monoxide? Ring the National Gas Emergency Service 0800 111 999*.
  • To find a Gas Safe registered engineer call on 0800 408 5500 or visit the Gas Safe Register website
  • Need to know who runs the gas or electricity network in your area? Visit the Energy Networks Association website
  • If you have a powercut, call 105