Serving NW London Mon–Sat 08:00–18:00

020 3422 1659
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Larger projects Refurbishments and coordinated multi-stage work.

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Smart-home planning Start here if you know the device or room you want sorted. Automation Start here for routines, or to get compatibility checked. Smart energy planning Start here for heating, efficiency and future-ready planning. Smart heating controls Compatibility, setup, schedules and handover. Lighting and controls Fittings, zones, sensors and practical control.

Small work

Small electrical jobs Lights, switches, sockets and grouped repairs. Fault finding and repairs Tripping circuits, dead points and unclear faults. EICR and consumer units Inspection, reporting and upgrade questions.
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When an isolator or fused spur seems to have failed

A fan or fixed appliance can appear dead when the problem is in its normal controls, the local isolator, the power arriving there or the appliance itself.

Written and checked by Willesden Smart Homes. Last reviewed August 2026.

Tell us about the isolator Sockets and switches

We serve homes across NW London after checking the postcode and the job. See the Areas page .

Check only controls intended for everyday use and the appliance instructions. Note what the isolator or fused spur controls, whether an indicator is lit and whether nearby power still works. Do not open the accessory, appliance or fan, and do not change an internal fuse.

What needs separating

  • The appliance settings, timer or other normal user controls.
  • Power arriving at the isolator or fused spur.
  • The local accessory and its accessible connections.
  • The fan or fixed appliance supplied by the point.

When a local replacement may help

  • A suitable isolator or fused spur can be replaced when testing confirms the fault is local and the wiring is sound.
  • The repaired point should receive the checks relevant to the work before it is handed back.
  • Tripping, loss of power elsewhere or an unclear cause belongs on a fault-finding visit rather than a guessed replacement.
  • If the point is hot, cracked, loose, scorched, buzzing or smells burnt, stop using it and call first.
Official sources and further guidance

Does an isolator or fused spur seem dead?

Describe what it controls, what still works and any warning signs.

Tell us about the isolator See sockets and switches