How to Change a Light Fitting

Whether you’re renovating your home or undergoing small but impactful changes to refresh its atmosphere, you’re in the right place. Changing a light fixture not only updates the style of a room, but it can improve the safety and level of lighting in a space. We’re here to give you a rundown of how’s best to change a light fitting, saving you time and ensuring you and your surroundings stay safe.

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You can change a light fitting by switching off the power and using a voltage tester to make sure it’s completely off. Then, removing the old light by unscrewing the colour and disconnecting the wires carefully, before checking the ceiling wires to ensure they’re in good condition to be connected to the new fixture. And finally, connecting the new fitting by matching up the wires and attaching the casing. You’ll then want to test the light works.
When changing a light fitting, you should be extra careful by ensuring the electricity is completely off, making sure the wires are in good condition and not working in damp conditions.
When changing a bathroom light, you’ll need to ensure that all bathroom electrical work complies with Part P of Building Regulations in the UK.

Can you change a light fitting yourself?

Yes, you can change a light fitting yourself, especially if you have the know-how and feel comfortable working with electricals. However, if you’re ever unsure or come up against an issue, it’s best to contact an electrician.

Why should you change a light fitting?

There are several reasons why you might want to change a light fitting, whether for aesthetics, functionality or safety.

Modernising a room
Altering the layout of a room
Matching your new décor

Improving the light output in a room

Upgrading to a more energy-efficient option

Outdated or worn fittings

Light flickering or other signs of wear
Cracked fixtures
Buzzing sounds when the light’s on
Fittings feeling loose or unstable

What tools do I need to change a light fitting?

Before we jump into the easy-to-follow process, you’ll need all the required tools to ensure a swift and successful fitting. Here’s what you’ll need for the job:

Safety precautions when changing a light fitting

You should always prioritise safety when changing a light fitting. You can do this by:

Wearing safety gloves where possible

Always switching off the power using the fuse box before you start your replacement
Always using a voltage tester to confirm no electrical currents are being sent to the fitting
Avoiding working on wiring that isn’t in good condition
Only attempting a replacement if you feel confident dealing with electricals
Never attempting electrical work in damp environments
Using a stable ladder or step stool, depending on the height
Keeping your workplace well-lit throughout

Changing a light fitting

See below for a simple step-by-step guide on how to replace and fit a light fixture.

Firstly, you’ll want to turn off the circuit using the fuse box to ensure it’s completely safe to start working on the light fixture. For extra peace of mind, we recommend using a voltage tester on your fitting to make sure the current is completely off.

Next, you’ll want to carefully remove the old light fitting by unscrewing the cover using a suitable screwdriver (usually Phillips). We recommend you make a note of the position of the wires; taking a picture for reference is an easy way to do this. Lastly, disconnect the wires with care, and you should be able to remove the fitting easily.

It's time to inspect the wires that your old fixture was connected to. You’ll want to check for any signs of damage or wear. If you're concerned and need an even more thorough look, use wire strippers to expose the copper.

Once you’re happy with the state of the wires, you can begin connecting your new fittings’ wires to them. To do this, you’ll want to match each wire using these guidelines:

Brown/Red: Live

Blue/Black: Neutral

Green/Yellow: Earth

To connect them together safely, use connector blocks for a secure attachment. You’ll want to ensure that no bare wires are exposed during this process.

Once you’re happy with your connections, you can go ahead and attach the new fitting to the ceiling as per the instructions provided. In many cases, it’ll be a simple screw-on fixture using the fastenings provided with the light, but it’s best to be sure. You’ll want to be extra sure that the light is then flush with the ceiling and stable – any signs of wobbling can be hazardous.

Lastly, it’s time to test your new light. Switch your power back on and flick the light switch. It should be in proper working order, as long as you securely connected the wires. If you find that your light doesn’t come on, it’ll likely be down to the wiring, or it could be down to a circuit breaker that has tripped or a fuse that has blown in the process.

This process is similar to changing standard light fittings, but with a recessed or spotlight light fitting, you’ll want to start by gently pulling the old fitting or trim down from the ceiling which is usually secured by spring clips. Then, disconnect the wiring from either the fitting or junction box, and then check the wiring hanging from the ceiling is in good condition. Reconnect the wires as above, and then carefully push the new fitting into place. Always make sure the spring clips are secure.

Whether you or an electrician takes care of your light fixture replacement is up to you. It depends if you feel confident in working in electricals and have the tools and know-how to get the job done correctly. An electrician may cost you, but they’ll be prepared to face any challenges that could arise.

How to change a light switch

Thinking of changing your light switch to match the look of your space? Whether you’re upgrading to a dimmer or smart switch or the current faceplates are outdated and worn, follow our simple guide below to replacing yours.

Before dealing with any electrical fitting, you must switch off the fuse box and confirm that the switch is no longer gaining electrical currents using a voltage tester.

You now need to remove the old switch, usually with a screwdriver. Once you’ve unscrewed the faceplate, gently pull it away from the wall.

For future reference, you should take a picture of the wiring before you disconnect each wire. This offers an easy guideline when you’re connecting the new switch.

Referencing your photograph, connect each wire to the correct terminals. These include the Common (COM), L1 and L2 for 2-way switches. Please ensure that these are secure to minimise any risk of loosening over time.

Finally, screw your new faceplate onto where your previous one sat. You can then switch on the power to check it’s working properly.

FAQs

You should ensure the fitting is IP-rated so that it’s resistant to moisture; we recommend IP44 or higher for such high moisture locations. You’ll want to triple check the electricity is completely off for the circuit you’re working on and never work in damp conditions. We also recommend that you avoid fittings near water sources unless they’re specifically designed for that zone. If you’re ensure, consult an electrician as bathroom electrical work must comply with Part P of Building Regulations in the UK.

When fitting a light fixture that has different wiring to your original fixture, you’ll need to carefully match up the wires. If there are extra or missing wires, we recommend using a safety block to cap off any that are unused. Always match function and not colour, so consult a professional if you’re unsure.

Changing a pendant light follows the same process as standard light fittings, so follow our instructions above.

Whether you’re able to change a light fitting in your rental property will depend on your renting contract and your landlord’s guidelines. Please ask your landlord before undergoing any electrical work as they may prefer a professional to take care of this area.

By fitting a ceiling light and new switch, you’ll be able to enjoy a beautiful ambience in no time. If you found the process a struggle or you’ve come across some unpredictable limitations, we recommend that you contact an electrician for safety reasons.