Downlights, sometimes called recessed spotlights or ceiling lights, are a popular choice in kitchens, living rooms, hallways and bathrooms. Installing them involves cutting circular apertures in the ceiling, routing cable from the supply point, making secure connections at each fitting and securing the units flush with the ceiling surface.
In bathrooms, the position of each fitting relative to the bath, shower or basin determines the level of protection against water ingress that the fitting needs to provide. Fittings installed close to water sources require a higher degree of ingress protection (IP) than those installed at greater distances.
A qualified electrician will assess the bathroom layout and specify appropriate fittings for each position in line with BS 7671. Thermal insulation compatibility and ceiling fire protection are separate checks.
A downlight must not be covered by or touch insulation unless its manufacturer permits that installation. Where a fitting penetrates a ceiling providing fire separation, the installation must preserve that protection using suitable fittings or an approved protective arrangement.
Fire protection alone does not establish that a fitting can safely be covered with insulation. Older properties may have wiring arrangements that need extending or adapting before new lights can be connected safely.
The engineer will check the existing circuit capacity and confirm the positions of joists, pipes and existing cables before cutting begins. The engineer will also confirm whether the proposed circuit can be added to an existing lighting circuit or whether a new circuit is needed.
Dimmable downlights require fittings that are compatible with LED dimming and a dimmer switch designed for use with LED drivers. Standard switches and many older dimmer switches will not produce correct or consistent dimming behaviour with modern LED fittings.
Before the visit, clearing furniture from below the installation area and ensuring any loft or attic access is available will help the work proceed efficiently.