Outbuildings

Garden Room & Garden Office Electrics

A garden room is only as good as the supply feeding it. We install properly sized, protected circuits so the building works as a room rather than as a shed with an extension lead.

NICEIC Approved Fully insured Work tested & certificated
Timber-clad garden office lit from inside at dusk

Buildings we wire

The building might be a garden office, a summer house, a gym, a workshop, a studio, a bar or a straightforward brick outbuilding. Electrically the questions are the same: how much power will it draw, how far is it from the house, and what needs to run at the same time?

  • Garden offices and studios
  • Summer houses and garden bars
  • Home gyms
  • Workshops with machinery
  • Garages and existing outbuildings

Getting the supply right

A garden building is normally fed by a steel wire armoured cable buried at a suitable depth, terminating in its own small consumer unit inside the building. That gives you local isolation and proper protection.

Cable size is calculated from the expected load and the length of the run, so the building still works properly when the heater, kettle and gym equipment are on together. Undersized cable is the single most common problem we are called to fix in outbuildings.

Sockets, lighting and heating controls

Inside, we fit sockets where the desk, bench or equipment will actually be, along with lighting suited to the use — even task lighting for a workshop, softer and dimmable for a garden room.

Electric heating is common in these buildings: panel heaters, infrared or an air conditioning unit with a heat function installed by others. We provide the supply and the controls, including thermostats and timers so the building is not heated when nobody is in it.

Outdoor supplies and external lighting

While the trench is open it is worth thinking about anything else in that part of the garden — an external socket at the building, lighting along the path back to the house, or a supply for a future hot tub or EV charger.

Adding a duct at that stage costs very little. Digging the same trench twice does not.

Data and network

Wi-Fi from the house is often unreliable at the bottom of the garden, particularly through insulated walls. Running a data cable alongside the power supply, in a separate duct, gives a solid connection for a home office.

We can terminate to a wall socket ready for an access point or a straight wired connection.

Every building is different

Requirements depend on the distance from the consumer unit, what capacity the existing board has, ground conditions and how the building will be used.

We survey before quoting so the price reflects your garden rather than a generic figure.

Frequently asked questions

Can you install electricity in a garden room?
Yes. A garden room is normally supplied with a buried armoured cable from the house, feeding its own consumer unit inside the building, with sockets, lighting and heating circuits from there.
Does garden room wiring need to be notified?
A new circuit supplying an outbuilding is notifiable work under Part P. We carry out the work and notify it, and you receive certification.
Can I just run an extension lead to my garden office?
It is not a safe or reliable long-term solution — extension leads are not designed for permanent outdoor use or for continuous loads such as heaters.
Can you add an EV charger and a garden room supply at the same time?
Often yes, and it is usually more economical to plan both together so the load on the existing supply is assessed once.

Where we work

We cover homes across east Birmingham and the surrounding towns. See the areas we cover, including Castle Bromwich, Shard End, Hodge Hill, Kitts Green, Stechford and Chelmsley Wood.

Related domestic services

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Birmingham & surrounding areas

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