RCBO consumer unit after an emergency callout to investigate repeated tripping

What's included

  • No power and partial power loss diagnosis
  • Repeated RCD or MCB tripping
  • Dead sockets, dead lighting circuits, dead immersion
  • Burning smells and signs of overheating at fittings
  • Made-safe action and clear quote for full repair

Who it's for

Homeowners with a sudden electrical fault, landlords with a tenant calling about no power, letting agents needing a same-day callout, and anyone unsure whether the problem is dangerous to leave overnight.

How it works

  1. Call or WhatsApp with a description of the fault — we'll triage on the phone first
  2. Same-day callout where the diary allows; outside hours, best-effort
  3. Fault diagnosis and made-safe action on the visit
  4. Full repair quoted before further work proceeds

When to call an emergency electrician

Most electrical problems aren’t strictly emergencies — they’re inconveniences that can wait for a planned visit in the next day or two. A handful are different. The ones we’d treat as a priority callout:

  • No power anywhere in the property. Once you’ve ruled out a wider DNO outage (check streetlights, neighbours, and the National Grid power-cut postcode checker), it’s an electrical fault inside the property
  • A circuit that keeps tripping and won’t reset, especially if it’s a circuit you depend on (heating, fridge-freezer, downstairs sockets)
  • Burning smell, scorch marks, or visible damage at a socket, switch, or fitting — possible loose connection arcing inside the wall
  • Smoke or sparks from any electrical accessory — turn off the relevant circuit at the consumer unit and call straight away
  • Damp or water ingress anywhere near electrical wiring or accessories
  • Tenant in a rented property reporting any of the above — landlords often need a same-day make-safe visit even before agreeing the full repair

If you can smell burning right now or see active smoke, switch off the main isolator at the consumer unit if it’s safe to do so, leave the property if the smoke is significant, and call 999 if there’s any risk of fire.

What you can safely check before calling

Some of what looks like an emergency turns out to be something a householder can fix in five minutes. Without poking around in anything you shouldn’t touch, the things worth checking:

  • Is it a wider outage? UK Power Networks (covering Kent) has a power-cut postcode checker. If the whole street is out, it’s a DNO problem and you don’t need an electrician, you need to wait
  • Has an RCD tripped? Open the consumer unit cover and look for any switches in the off (down) position. Try resetting once. If it trips immediately, leave it off and call us
  • Is one specific appliance the cause? Unplug everything from the affected circuit and try to reset the breaker. If it now holds, plug appliances in one at a time until you find the one tripping it. Most repeated trips are a faulty appliance, not the wiring
  • Is the meter reading “low credit” or zero? If you’re on a prepayment meter, no power could just be no top-up

A quick phone or WhatsApp triage with us before a callout can often save you the visit. We’d rather talk you through a five-minute fix than bill you for a half-day.

Multi-occupancy meter cupboard with separate consumer units and smart meters
Multi-occupancy meter cupboard with separate consumer units and smart meters

What we typically diagnose

Most domestic emergency callouts in Kent come down to one of a handful of underlying causes:

Failed RCDs and RCBOs. Modern protective devices have a finite lifespan. A 30 mA RCD that’s been on duty for 15+ years can develop a sticky mechanism or fail to trip within the required time. Replacement is straightforward.

Loose terminations. Loose connections in a socket, switch, or junction box heat up under load. The first sign is usually a discoloured (yellowed or browned) faceplate or a faint burning smell. Caught early, it’s a five-minute fix. Left alone, it can start a fire.

Failed neutrals. A broken neutral conductor can cause some sockets to work and others not, sometimes with strange voltage readings on appliances. Often dramatic-looking — lights flickering, devices behaving oddly — but tends to be straightforward to find with the right test gear.

Water ingress. Common after roof leaks or pipe bursts. Water in a junction box, light fitting, or socket can drop insulation resistance and trip the RCD. Once the water source is dealt with, the affected accessories typically need to come out and dry (or be replaced) before reconnection.

Overloaded circuits. Adding a second high-wattage appliance — second oven, heated towel rail, immersion — onto a circuit that wasn’t designed for it. The fix is usually a new dedicated circuit rather than swapping the breaker for something bigger.

Rodent damage. Particularly in older Kent housing with loft cabling. Mice and squirrels chew insulation, expose copper, and create earth faults. The fix is a partial rewire of the affected section plus, ideally, dealing with the rodent problem.

Failed appliances tripping shared circuits. A faulty kettle, fridge, or washing machine can trip its protective device repeatedly. Identification is usually a process of elimination on-site.

How a callout actually works

CJA Electrical operates Monday to Saturday during working hours, with best-effort response outside hours — we can’t guarantee a 24/7 turn-up but we will pick up and triage by phone.

The typical flow on a callout:

  1. Triage on the phone or WhatsApp. Describe what’s happening, when it started, and what you’ve tried. About a quarter of calls don’t actually need a visit — we can talk you through a fix
  2. Same-day visit where the diary allows. During working hours, we aim to be at urgent jobs in the Medway towns within a couple of hours. Maidstone, Gravesham, Swale, and Canterbury depending on what’s already on
  3. Diagnose and make-safe. First priority is making the property safe to be in — isolating the faulty circuit, replacing damaged accessories, restoring power to unaffected circuits
  4. Quote for full repair. Where the make-safe is just the first step, we quote the full fix before doing it. No surprise invoices
  5. Test certificate for any new circuits, replaced consumer units, or significant remedial work
Main service fuse, cutout and smart meter on the incoming supply
Main service fuse, cutout and smart meter on the incoming supply

What to do while you wait

If you’ve called and we’re on the way, a few things to think about:

  • Isolate the affected circuit at the consumer unit if you haven’t already. A breaker in the off position, with nothing on that circuit live, is the safest holding pattern
  • Keep the consumer unit accessible. Move shoes, coats, anything stacked in front of the box
  • List anything else electrical you’ve noticed lately — flickering lights, slow-warming heating, sockets that buzz. Often the emergency is the loud version of something that’s been hinting for weeks
  • For tenants in rented property, make sure the landlord or letting agent knows. They often need to authorise the work or remedials

Coverage across Kent

Emergency callouts across Medway, Maidstone, Gravesham, Swale, and Canterbury — see the where we work section for the full list. Closer to Rochester (Chatham, Strood, Gillingham, Rainham, Higham) means a faster response. Further out (Canterbury, Faversham, Tonbridge) means more travel time and more phone-based triage upfront.

Frequently asked questions

How quickly can you get to me?

Same-day where the diary allows. Call or WhatsApp with what's happening and we'll triage on the phone — sometimes the fix is something the householder can do safely without a callout, and that's worth knowing before you spend on a visit.

Is there a callout fee?

All emergency work is quoted up front. We'll confirm the callout charge and any minimum labour before the visit so there are no surprises on the invoice.

Do you cover 24-hour emergencies?

Working hours are Monday to Saturday — within those, we aim for same-day where possible. Outside hours, it's best-effort: call or WhatsApp and we'll let you know honestly whether we can get there and how soon. We won't promise something we can't deliver.

Get a quote

Send a quick message and you'll get a same-day reply during working hours. Skip straight to phone or WhatsApp if you prefer.

EICR detail (helps with the quote)

Or skip the form: Call 07598 216512 WhatsApp info@cjaelectrical.co.uk