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Full power, lighting, heating, and data for garden offices, studios, gyms, and annexes. We handle the complete electrical installation — from the underground supply cable to the final socket — fully compliant and certificated.


Jobs completed safely

Residential & commercial

Completed across UK

Google Reviews

Jobs completed safely

Residential & commercial

Completed across UK

Google Reviews

FULLY CERTIFIED
A garden room needs more than an extension lead from the house. We design and install a proper, standalone electrical system — with its own supply, its own distribution board, and everything wired to last for decades.
Underground armoured cable from house to garden room
Dedicated consumer unit inside the garden room
Sockets, USB outlets, and double circuits throughout
LED lighting — recessed, feature, or strip
Electric heating circuit and thermostat wiring
Data and ethernet cabling where required
External lighting and security circuit
Full inspection, testing, and EIC certificate on completion
FULLY CERTIFIED
A certified electrical installation transforms a garden room from a storage space into a genuine working or living space.
A properly wired garden office with enough sockets, fast ethernet, and good lighting makes working from home significantly more productive — and more comfortable.
A garden room with a certified electrical installation is a genuine property asset. Buyers and valuers treat it as usable living space — not just a shed.
A certified installation protects your insurance position and satisfies planning requirements. We provide the documentation you need for both on completion.
With proper heating circuits and insulation wiring, your garden room is usable in January as well as July. We wire for electric heating, towel rails, and smart thermostats.
Underground armoured cabling and weatherproof external fittings mean your installation is safe, hidden, and built for the outdoors — not a trailing cable across the lawn.
Every garden room installation is carried out by our NICEIC approved engineers, independently assessed to the highest industry standards, and registered under Part P.
We spec each installation around how you actually use the space — not a one-size-fits-all approach.

HOME OFFICE
Multiple double sockets, ethernet data points, LED task lighting, and a dedicated heating circuit. Wired to handle everything a home office demands — screens, printers, standing desks, and video calls.

GYM & LEISURE
High-power circuits for gym equipment, feature lighting, sound system wiring, and climate control. We spec the installation around your equipment load so nothing trips the board.

GYM & LEISURE
High-power circuits for gym equipment, feature lighting, sound system wiring, and climate control. We spec the installation around your equipment load so nothing trips the board.

ANNEXE
Full residential-spec installation for garden annexes — kitchen circuits, bathroom electrics, heating, lighting, and a standalone consumer unit. Fully compliant for use as a separate living space.

ANNEXE
Full residential-spec installation for garden annexes — kitchen circuits, bathroom electrics, heating, lighting, and a standalone consumer unit. Fully compliant for use as a separate living space.
Common questions about garden and outdoor electrical installations. Still unsure? Give us a call.
The electrical installation itself doesn't require planning permission, but the garden room structure may depending on its size and your property. However, all electrical work in a garden room must be notified to and certified under Part P of the Building Regulations — which we handle for you on completion.
We run an underground armoured cable (SWA — Steel Wire Armoured) from your house consumer unit, buried at the correct depth to meet regulations. This feeds a small standalone consumer unit inside the garden room, giving it its own independent electrical supply.
Most garden room installations take 1–2 days depending on the size of the room and the scope of work — how many circuits, sockets, lighting points, and whether heating or data cabling is included. We'll confirm the timeline in your quote.
Yes. We wire dedicated circuits for electric panel heaters, infrared heating panels, underfloor heating mats, and smart thermostats. We'll advise on the right heating load for your room size to make sure the circuit is correctly rated.
Yes. Every garden room electrical installation comes with an Electrical Installation Certificate (EIC), registered with your local authority under Part P of the Building Regulations. This is the document you'll need for insurance, mortgage, and any future property sale.
Get your free, no-obligation quote today. We'll respond within 24 hours — no hard sell, no hidden costs, no surprises.
Free, no-obligation quote
Response within 24 hours
NICEIC certified team
Free, no-obligation quote
Response within 24 hours
NICEIC certified team

Power, done properly. Certified electrical contractors for homes, businesses, and schools across United Kingdom.
Ready to get started? We'll respond within 24 hours.






© 2026 One Zero Electrical Ltd. All rights reserved. Website Created By: Elevate Media
© 2026 One Zero Electrical Ltd. All rights reserved.
Website Created By: Elevate Media