Change a lightbulb
Save £60–100 today
5 mins · Beginner · Saves £60-100 vs an electrician
Last updated: January 2025
Before you start
Changing a bulb is safe as long as the light is switched off and the bulb has cooled down. No tools needed.
Check the fitting type before buying a replacement — the most common UK fittings are bayonet cap (BC/B22) and Edison screw (ES/E27).
Tools needed
- ✓No tools required — just your hands
- ✓Step ladder or stable chair — for ceiling fittings
- !Replacement bulb — buy: match the existing fitting type (B22, E27, or GU10), £5–15
Turn off the light switch
Switch the light off at the wall. For ceiling fittings, this is enough. For a lamp, also unplug it from the socket.
Where beginners go wrong
Touching a new halogen bulb with bare hands — oils from your skin cause hot spots that crack the glass.
Buying the wrong fitting type and only realising after you are up a ladder.
Fitting a bulb with too high a wattage, which can overheat the fitting and cause a fire risk.
Stop and call an electrician if...
The fitting is discoloured, melted, or smells of burning
Bulbs keep blowing repeatedly in the same fitting
You see any exposed or damaged wiring
Cost breakdown
What you just learned
You now understand the main bulb fitting types used in UK homes and how to work safely around basic electrics. These skills transfer to fitting lampshades and replacing light fittings.
✅ Completed by 8,932 people
How long will this actually take me?
First time
5–10 mins
With experience
2 mins
Finding a matching replacement bulb is often the longest part — take the old one with you to the shop.