Garden Room, Shed & Garage Power in Kent

What outbuilding power really needs

A garden office, a workshop, a home gym, or a garage that’s become a proper workspace: outbuildings increasingly need real power, not a single bulb on an extension lead from the house. We supply and wire garden rooms, sheds, and garages across Kent, with a dedicated supply sized for what the building actually does.

Running an outbuilding off a domestic extension lead is unsafe and unreliable: the lead isn’t rated for a permanent buried run, there’s no proper protection, and it trips or overheats the moment you plug in a heater and a kettle together. A proper installation fixes all of that.

A dedicated armoured supply

The right way to power an outbuilding is a dedicated steel-wire-armoured (SWA) cable run from the house, sized for the load and buried or routed to standard. Armoured cable is built to survive being underground and resists damage from spades, mowers, and rodents in a way ordinary cable does not.

We calculate the cable size for the distance and the load, so the supply doesn’t suffer voltage drop over a long run and has headroom for what you want to plug in. The trenching and routing are planned with you and kept as tidy as the garden allows.

Its own consumer unit

For anything beyond the most basic supply, the outbuilding gets its own small consumer unit. That gives you local isolation and protection: sockets, lighting, and any heating each on their own protected circuit, with RCD protection throughout.

It means you can switch the whole building off at its own board, and a fault in the outbuilding stays in the outbuilding rather than tripping the house. Where the work is notifiable, we handle the certification and notify building control as required.

Garden offices and workshops

A garden office has its own needs: enough sockets for a desk setup, good lighting that’s comfortable to work under, heating for winter, and often a data cable run alongside the power so the broadband reaches reliably. A workshop leans more towards heavier-duty sockets and good task lighting.

We wire the building for how you’ll actually use it, and we’re happy to plan in capacity for things you might add later, like a charger or a small kitchenette.

How we wire an outbuilding

We start by talking through what the building is for and the loads it needs, then visit to plan the supply, route, and consumer unit. We install the armoured supply, the board, and the circuits and accessories, then test, certificate, and demonstrate the finished installation.

It’s all quoted up front after the site visit, so you know the cost before any digging starts.

Related work

For a single weatherproof socket rather than a full supply, see outdoor sockets. For lighting around the building see outdoor and garden lighting, and for a new or upgraded board at the house see consumer unit replacement. To book a site visit, get in touch.