As we decorate and plug in the fairy lights this festive season, it’s worth pausing for a moment to think about safety. Christmas is a time for warmth and joy, but it can also bring hidden fire risks, particularly from overloaded sockets, faulty decorations, and lithium-ion batteries.

Here’s a friendly reminder of how to keep your home safe.

  • Overheating and faulty wiring: string lights can overheat if wires are damaged, bulbs are broken, or the set is cheap quality.
  • Overloaded sockets: plugging too many light strands into a single outlet can overload your circuit, increasing fire risk.
  • Flammable surroundings: lights in contact with paper decorations, dry tree needles, fabric, or curtains are dangerous.
  • Unattended lights: leaving lights on while you sleep or go out can lead to serious heat buildup.
  • Real tree dangers: a dry Christmas tree is highly flammable, keeping it well watered makes a big difference.
  • Battery-powered devices: from toys to e-bikes, many gifts contain lithium-ion batteries, and misuse or damage to these can cause fires.
  • Inspect before use – Check every string of lights before hanging them up. Look for frayed wires, loose connections or cracked/broken bulbs. Replace any suspect sets rather than risk a fault.
  • Buy certified lights – Choose lights that carry recognised safety marks (e.g. CE) and buy from reputable retailers. Cheaper, uncertified lights may lack safety features.
  • Keep lights away from flammable materials- Make sure lights don’t rest on or near curtains, paper decorations, dry tree branches, or fabric. Even low-wattage lights can scorch or ignite these materials.
  • Turn off lights when not home or at night – Unplug decorations before you leave the house or go to bed, this removes the risk of heat build-up and potential fire.
  • Avoid overloading sockets – Use power strips with built-in overload protection if needed, and don’t daisy-chain too many light sets into one socket.
  • Use the correct replacement bulbs – If a bulb fails, replace it with one that matches the set’s specification (correct voltage and type) to avoid overheating.
  • Water real Christmas trees regularly – A well-watered tree is far less likely to catch fire. Check the water level daily and top up as needed.

Much like lights, devices powered by lithium-ion batteries present their own fire risks, especially when not handled properly. Failure to charge, damage, or poor-quality chargers can lead to serious incidents.

  • Register your devices: where possible, register lithium battery devices with their manufacturers so you receive any safety alerts or recalls.
  • Use the correct charger: always use the charger that came with your device. If you need a replacement, buy a genuine one from a trusted retailer.
  • Don’t leave devices charging unattended: avoid charging overnight or when you’re out, thermal runaway (a rapid, uncontrolled increase in temperature) can occur.
  • Choose a safe charging location: charge on a hard, non-flammable surface, not on a bed, sofa, or other soft, heat-retaining surface.
  • Don’t use damaged batteries: if a battery looks swollen, deformed, or has been physically damaged, stop using it and dispose of it safely.
  • Dispose of batteries correctly: don’t throw lithium-ion batteries in household waste. Take them to designated e-waste or battery recycling points.

General fire-safety tips for the home

  • Smoke alarms – Make sure you have working smoke alarms on every level of your home, and test them regularly.
  • Fire extinguisher – Consider keeping a fire extinguisher suitable for electrical fires (or a multi-class one) and make sure you know how to use it.
  • Outdoor lights – Use only lights rated for outside use outdoors. Protect all plugs and connections from the elements (e.g. use weatherproof covers).

You can find further fire safety information here.

Taking a few simple precautions now can keep your home safe and let you enjoy the sparkle of the season worry-free.

Written by Lauren Eden

All Articles by Lauren Eden