Cost Guide

Lighting Installation Cost

Lighting installation costs in the UK typically range from £100 to £500, covering everything from replacing a single light fitting to installing new downlights or a full LED conversion across your home.

Average cost: £100–£500

Cost Breakdown

Item	Min	Max	Note
Replace light fitting	£50	£100	Like-for-like swap on existing wiring and ceiling rose
New ceiling light (with wiring)	£150	£300	Includes cable run from the lighting circuit and ceiling rose installation
Dimmer switch installation	£60	£120	Supply and fit; LED-compatible dimmer recommended
Downlight installation (per light)	£40	£80	Price per downlight when installing a set of 4 or more; includes cutting hole and fire-rated housing
LED conversion (whole house)	£300	£600	Replacing all fittings with LED equivalents in a typical 3-bed house
Wall light installation	£80	£180	Includes chasing in cable and fitting the light; making good extra
Under-cabinet kitchen lighting	£150	£350	LED strip or puck lights with transformer, typically 3-4 metre run

What's Included

Supply and installation of light fittings (or fitting of customer-supplied units)
Cable run from the lighting circuit to the new light point, including any chasing and clipping
Installation or replacement of the light switch, including dimmer switches where specified
Testing, certification, and a Minor Works Certificate or Electrical Installation Certificate as appropriate
Basic making good around cable routes — filling chase channels and leaving ready for decoration
Disposal of old fittings and packaging

Factors Affecting Cost

Whether you are replacing an existing fitting or installing a new light point. Replacements reuse the existing wiring and switch, while new installations require cable runs, switch drops, and potentially new circuits.
The number of lights being installed. Electricians offer better per-unit rates for multiple fittings in one visit, so a set of six downlights costs less per light than a single one.
Ceiling and floor access. If the electrician can access the void above from a loft, cable routing is straightforward. In flats or mid-floor rooms, lifting floorboards in the room above or surface-running cable adds time and cost.
The type of fitting. Simple pendant lights are quick to hang, while recessed downlights require cutting holes and fitting fire-rated housings. Chandeliers and heavy fittings may need reinforced ceiling fixings.
Dimming and smart controls. Standard on/off switches are cheap, but installing dimmable circuits, smart switches (Hue, Lutron), or multi-way switching significantly increases wiring complexity and component cost.
Room height and scaffolding requirements. Standard 2.4m ceilings can be reached with a stepladder, but vaulted ceilings, stairwells, or commercial spaces may require scaffold towers, adding £50-150 to the job.
Location in the UK. Electrician rates in London and the South East are typically 20-30% above the national average.

How Long Does It Take?

Replacing a single light fitting typically takes 30 to 60 minutes. Installing a brand-new ceiling light with wiring takes 2 to 3 hours. A set of four to six recessed downlights in one room usually takes half a day (3 to 4 hours), as the electrician needs to plan the layout, cut holes, route cables, and connect them back to the switch. A full-house LED conversion for a 3-bedroom property — replacing all pendants, downlights, and switches — can take 1 to 2 days. Complex jobs involving smart lighting systems with multi-zone controls may take 2 to 3 days depending on the scope.

Do I Need This?

You might need new lighting installed if your rooms feel dim or dated, you are renovating a kitchen or bathroom, or you want to add task lighting for a home office. Downlights are popular for creating a modern, clean look and work particularly well in kitchens, bathrooms, and hallways. If you have old halogen downlights, upgrading to LED saves significant energy — a typical home switching from halogen to LED can save £100-200 per year on electricity. Flickering lights, buzzing fittings, or lights that take a long time to reach full brightness can also indicate failing components that should be replaced. If you are adding new light points rather than just replacing existing ones, the work must comply with Part P Building Regulations and should be carried out by a registered electrician.

How to Save Money

Install multiple lights in one visit to spread the call-out and setup cost. Having four downlights fitted at once is far cheaper per unit than booking four separate visits.

Buy your own light fittings. Electricians typically add a mark-up on materials, so sourcing fittings from a lighting retailer or online can save 20-40% on the fixture cost. Just confirm compatibility with your electrician first.

Choose surface-mounted fittings over recessed ones where possible. Recessed downlights require cutting ceiling holes and fitting fire-rated housings, which adds labour time.

Combine lighting work with other electrical jobs. If you are already having sockets added or a consumer unit upgraded, adding lighting at the same time avoids a separate call-out fee.

Consider LED retrofit bulbs before committing to new fittings. Many older light fittings accept LED bulbs directly, giving you the energy savings without the cost of new fixtures.

Average Cost Summary

£100–£500

Typical price range for lighting installation cost in the UK. Prices may vary based on your location, property type, and specific requirements.

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Sources & References

Frequently Asked Questions

Can I replace a light fitting myself?

Yes, replacing a light fitting on a like-for-like basis is considered maintenance and is not notifiable under Part P. You must turn off the circuit at the consumer unit and verify it is dead with a voltage tester before starting. If you are unsure about the wiring — for example, if there are multiple cables at the ceiling rose — it is safer to call an electrician.

How many downlights do I need in a room?

A common rule of thumb is one downlight per 1.2 to 1.5 square metres of floor space. For a 12 square metre kitchen, that means roughly 8 to 10 downlights. Your electrician can help plan the layout to avoid dark spots and ensure even illumination. Fewer, brighter downlights can work just as well and reduce installation cost.

Do I need fire-rated downlights?

Yes, in most domestic situations. Fire-rated downlights maintain the fire integrity of the ceiling for 30, 60, or 90 minutes, depending on the rating. Building Regulations require fire-rated housings where the ceiling forms a fire barrier — which includes virtually all ceilings between floors. They cost a few pounds more per unit but are a legal requirement, not an optional upgrade.

What is the difference between LED and halogen downlights?

LED downlights use around 80% less energy than halogen equivalents and last 25,000 to 50,000 hours compared to 2,000 hours for halogen. They run much cooler, reducing fire risk in the ceiling void. A typical LED downlight uses 5-7W to produce the same light as a 50W halogen. The higher upfront cost is recovered within months through energy savings.

Can I add a dimmer switch to existing lights?

Yes, but you need an LED-compatible (trailing-edge) dimmer if your lights are LED. Standard (leading-edge) dimmers designed for old incandescent bulbs can cause LED lights to flicker, buzz, or fail to dim smoothly. An electrician can swap the switch in about 30 minutes. Check that your LED bulbs are labelled as dimmable — not all are.

What are smart lights and are they worth it?

Smart lights (such as Philips Hue, LIFX, or WiZ) connect to your Wi-Fi or a Zigbee hub, allowing you to control them via an app, voice assistant, or automation routines. They are excellent for convenience and scene-setting but cost £15-40 per bulb. For most people, smart switches (which control standard LED bulbs) offer better value than smart bulbs, as you do not need to replace the bulb if it fails.

Will I need building regulations sign-off?

If you are adding new light points (not just replacing existing fittings), the work is notifiable under Part P of the Building Regulations. A registered electrician (NICEIC, NAPIT, ELECSA) can self-certify the work and issue a Building Regulations Compliance Certificate. If you use an unregistered electrician, you will need to arrange a building control inspection, which costs £200-300.

How do I choose the right colour temperature?

Colour temperature is measured in Kelvin (K). Warm white (2700K) is cosy and suits living rooms and bedrooms. Cool white (4000K) is brighter and works well in kitchens and bathrooms. Daylight (5000K+) is clinical and best for workshops or garages. Most people prefer 2700-3000K for general domestic use. Many modern LED fittings offer tuneable white, so you can adjust the colour temperature to suit the time of day.

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