Can you put ceiling lights in a bathroom?

UK regulations permit ceiling lights in bathrooms, but the rules are specific. Part P of the Building Regulations and BS 7671 (the IET Wiring Regulations) divide the bathroom into three zones, each with a minimum IP (Ingress Protection) rating requirement.

Zone 0 is inside the bath or shower itself — almost no standard ceiling light applies here. Zone 1 covers the area directly above the bath or shower up to 2.25 metres from the floor, requiring at least IP45. Zone 2 extends 0.6 metres beyond the bath or shower rim and 2.25 metres up, where IP44 is the minimum. Outside these zones, standard ceiling lights with no IP rating are technically permissible, though many electricians recommend IP44 throughout for peace of mind.

When choosing ceiling lights for a bathroom, the IP rating is printed on the packaging and usually stamped on the fitting itself. Do not assume a fitting is bathroom-safe because it looks sealed — always verify the rating. Many of the most popular ceiling lights sold for bathrooms are rated IP44 or IP65, the latter offering additional protection against water jets.

For a broader look at fitting types and styles, ceiling lights as a category span everything from flush mounts to adjustable spotlights, and many are now produced in bathroom-rated versions.

Understanding the three zones helps you shop with confidence rather than guessing.

Zone 0 is the interior of the bath or shower basin. No standard ceiling light is designed for this zone, and fitting one here would be unsafe and non-compliant.

Zone 1 covers the space directly above the bath or shower enclosure, from floor level up to 2.25 metres. If your ceiling is higher than 2.25 metres, the area above that height is outside Zone 1 — but many installers still treat it cautiously. Fittings here need a minimum IP rating of IP45, though IP65 is more commonly specified.

Zone 2 is the 0.6-metre band surrounding the bath or basin, again up to 2.25 metres high. IP44 is the minimum here. In practice, most bathroom ceiling spotlights sold in the UK are rated IP44 or IP65, so they satisfy both Zone 1 and Zone 2 requirements.

Outside all zones — for example, directly above a bathroom door or over a clear floor area well away from any water source — a standard non-rated ceiling light can be used. However, given the humid environment, a fitting with at least IP20 is sensible even in these areas.

The key takeaway: always check the zone your fitting will occupy before purchasing, and match the IP rating accordingly.

In England and Wales, electrical work in a bathroom is classified as notifiable under Part P of the Building Regulations. This means the work must either be carried out by a registered competent person (such as a Part P-registered electrician) or be notified to your local authority building control and inspected.

Replacing a like-for-like fitting on an existing circuit — same position, same wiring — sits in a grey area, but adding a new circuit, moving a fitting, or installing additional lighting almost always requires a registered professional. The NICEIC advises homeowners to use a qualified tradesperson for bathroom electrical work; you can read their guidance on when to hire a tradesperson before deciding whether to call someone in.

For new builds or renovations covered by an NHBC warranty, using unregistered electrical contractors can affect your warranty. The NHBC warranty terms specify that alterations must comply with building regulations to remain valid.

From a practical standpoint, hiring a registered electrician for bathroom lighting is straightforward and relatively inexpensive. They will test the circuit, issue an Electrical Installation Certificate, and notify building control on your behalf — removing any compliance risk.

Style and compliance are not mutually exclusive in bathroom lighting. Several ceiling light formats are produced specifically with bathroom ratings.

Flush and semi-flush mounts are the most common choice. They sit close to the ceiling, reducing the risk of condensation pooling around the fitting, and many are available in IP44 and IP65 variants. Finishes include chrome, brushed nickel, white, and matte black.

Recessed downlights (spotlights) are popular in modern bathrooms because they distribute light evenly and leave the ceiling visually clean. Look for fire-rated, IP65 options if the bathroom is above a habitable room — this addresses both moisture and fire-stopping requirements simultaneously.

Adjustable spotlights on a ceiling plate, such as multi-lamp bar fittings, are increasingly available in IP44-rated versions. These suit larger bathrooms where directional light over a mirror or bath is desirable.

Avoid open-shade pendants and any fitting with exposed lampholder contacts, as these are not rated for bathroom use and will not comply with zone requirements.

When comparing options:

• Flush mounts: low profile, wide choice of IP-rated styles
• Recessed downlights: clean look, even coverage, choose IP65 for Zone 1
• Bar spotlights: flexible direction, good for larger rooms
• Pendants: not suitable for Zone 1 or Zone 2