Berkshire + selected London areas

Electric heating for garden rooms, annexes, cabins & outbuildings

Detached spaces often need a different solution from the main house. We consider insulation, usage hours, submain capacity, frost protection, wet versus direct electric heating and hot-water needs before choosing equipment.

✓ Dimplex certified installer✓ NICEIC registered electrical work✓ G3 unvented qualified✓ Electrical + heating diagnosis

Common reasons customers call

New garden office needs permanent heating
Annexe needs radiators and hot water
Cabin or studio has no gas
Existing submain may limit heater size
Need frost protection for occasional use
Want wet underfloor heating from an electric boiler

What we check before recommending parts

Electric heating faults can be upstream of the appliance. We test in a logical order and keep repair versus replacement as a decision made after evidence, not before.

Heat loss and insulation
Existing submain capacity and voltage drop
Maximum demand and diversity
Direct radiator versus wet system comparison
Hot-water demand
Controls for intermittent occupancy

Where this service is useful

Garden offices
Annexes
Cabins
Workshops
Studios
Pool / leisure outbuildings

Brands and systems

DimplexElnurEHCStromTriancoViessmannWarmup

Berkshire and London coverage

We cover Reading, Maidenhead, Windsor, Slough, Bracknell, Wokingham and surrounding Berkshire areas, plus planned visits in West and Central London including Ealing, Hillingdon, Hammersmith & Fulham, Kensington & Chelsea, Westminster, Richmond and Kingston.

Frequently asked questions

Is an electric boiler suitable for a garden room?

It can be, especially when the building has a wet heating system or multiple emitters. For one small room, a direct electric radiator may be simpler.

Can the existing house supply feed it?

Possibly. The submain, protective device, cable route and total demand must be assessed first.

What is best for an occasionally used garden office?

Fast-response direct electric heating with good controls is often attractive, but the building heat loss and usage pattern should drive the decision.

Related services

Technically reviewed by Berkshire Electric Heating

Reviewed 9 September 2026 · NICEIC-registered electrical work · G3 unvented hot-water qualified · Dimplex Pro / Quantum installer training.

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Send the model, fault and postcode.

A clear photo of the appliance label, controls and consumer unit helps us prepare before the visit.

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