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Rooms, sockets and installations

Garden and Outdoor Electrics: Lighting, Sockets and Outbuildings

Outdoor lighting, sockets and power to the shed or garden room all need the right fittings and protection. Here's what to plan.

3 min read · Updated October 2026

Garden at dusk with wall lanterns, path bollard lights, an outdoor socket and a lit shed

Outdoor lighting

Wall lights by doors, PIR security lights, path lighting and feature lighting all make a garden safer and more usable. Outdoor fittings must be suitable for their location, with an appropriate IP rating, and outdoor circuits need RCD protection.

Some garden lighting runs at extra-low voltage through a transformer, which can be simpler to install in beds and borders. An electrician will recommend the best approach.

Outdoor sockets

A weatherproof outdoor socket saves running extension leads through windows for lawnmowers, pressure washers and power tools. It should be RCD-protected and fitted in a sensible position, usually on the house wall.

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Power to sheds, garages and garden rooms

Supplying an outbuilding means running a suitably sized cable from the house – usually buried armoured cable or cable in ducting at a suitable depth – to a small consumer unit in the building. Garden rooms used as offices or gyms may need several circuits.

Costs and certification

Costs depend on distances, groundwork and fittings. New outdoor circuits are notifiable work in England and Wales, so you should receive a certificate. See our prices guide for indicative ranges.

Common questions

Do outdoor sockets need RCD protection?

Yes. Outdoor sockets and circuits supplying outdoor equipment should be protected by an RCD.

Can garden lights go on a timer?

Yes – timers, dusk sensors and smart controls are all options.

Can a hot tub be connected to an outdoor socket?

Many hot tubs need a dedicated circuit. Check the manufacturer's requirements with your electrician.

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