--- title: "Electrical faults and maintenance in Colliers Wood | 5.0 Star" description: "Electrical fault finding, maintenance and extractor fan installation by Bello Electrics Ltd in Merton, Wandsworth, Clapham, Battersea and Chelsea." canonical: "https://belloelectricsltd.co.uk/services/electrical-fault-finding" --- # Electrical faults and maintenance in Colliers Wood > Electrical fault finding, maintenance and extractor fan installation by Bello Electrics Ltd in Merton, Wandsworth, Clapham, Battersea and Chelsea. Electrical fault finding and maintenance from Bello Electrics Ltd resolves domestic circuit problems to restore working power safely. We answer calls any time, day or night. ## Electrical faults and maintenance starting prices Current rates for fault tracing, ongoing maintenance and extractor fan installations appear below. Prices cover diagnostic time and straightforward fitting. - Electrical fault finding: from £95 an hour; from £95 an hour - Reactive and Planned Maintenance: Price on request - Extractor fan installation: from £130; £130 for up to 1 extractor fans, then £130 per additional extractor fans. - Electrical fault finding is charged at an hourly rate for testing and locating issues. - Extractor fan installation covers the fitting of one fan, with extra units priced per unit. - Replacement parts, new cabling and materials are itemised separately from labour. ### Within the agreed scope - Testing circuit insulation resistance and earth continuity - Tracing loose terminals, pinched cables and damaged accessories - Replacing failed extractor fans on existing ducting and wiring - Isolating dangerous or compromised circuits safely - Testing consumer unit components and protective breakers ### Confirm separately - Full property rewiring under standard fault rates - Core drilling new external ventilation vents through masonry - Plastering, painting or surface cosmetic making good ## Electrical faults and maintenance in south west London Wiring issues and persistent circuit trips happen across older Victorian conversions and modern flats alike. We locate the underlying cause and carry out repairs. - **Persistent circuit tripping:** When a circuit breaker or residual current device repeatedly trips, we test the circuit using calibrated diagnostic meters to identify loose connections, damp ingress or damaged cables behind walls. - **Extractor fan replacements:** Failing bathroom or kitchen extractor fans cause damp buildup. We disconnect old units, verify isolator switches and ducting, and install replacements that ventilate moisture effectively. - **Planned and reactive upkeep:** Routine checks prevent small faults from cutting power unexpectedly. We service residential distribution boards, test switches, check fittings and address wear before issues worsen. ## What happens on the day Clear access to your consumer unit and affected fixtures helps us begin testing immediately upon arrival. - **Clear access to the fuse board:** Ensure cupboards containing the consumer unit, electricity meter and main isolator are cleared of stored items so testing instruments can connect directly. - **Note when the issue happens:** Let us know if trips occur when specific appliances turn on, after heavy rain, or when using particular sockets in kitchens or bathrooms. - **Expect temporary power cuts:** Circuits must be turned off during dead testing and component replacement. Please save ongoing work on computers before our visit begins. ## How booking works 1. **Tell us about the job:** Tap Book Now and describe the work in the chat. Photos help. 2. **Get your price:** You see your price in the chat. A set price is paid at checkout; any other job is quoted first. 3. **Choose your visit:** Give your address and when you are free, and the visit is arranged. ## Electrical faults and maintenance questions ### Why does my fuse box keep tripping? A consumer unit trips when it detects an overload, short circuit or earth leakage. This can stem from a faulty household appliance, damaged wiring hidden behind walls, or water getting into an external light. We isolate circuits individually to find the exact point of failure. ### How long does it take to trace an electrical fault? Simple faults caused by broken switches or damaged sockets can often be identified within the first hour of testing. Intermittent faults or complex circuits with multiple branches across older properties take longer to track down methodically. ### Can you replace a noisy bathroom extractor fan? Yes. We remove existing extractor units, check the local three pole isolator switch and duct run, and fit a replacement model that extracts humid air quietly and effectively. ### Do I need to turn everything off before you arrive? You do not need to turn off power before we arrive. We will discuss which circuits need isolation before testing commences so sensitive electronics can be unplugged safely. ## Business facts - Service area: Colliers Wood, Tooting, Streatham, Balham, Wandsworth, Putney, Battersea, Clapham, Oval, Brixton, Vauxhall, Pimlico, Chelsea, South Kensington, Mayfaair, Fulham - Hours: Calls answered 24/7 - Phone: +447455213345 - Email: info@belloelectricsltd.co.uk - Insurance: Public liability £5M, Professional indemnity £1M - Qualifications: BS7671; Testing and inspection; Initial verification; EV charging; PAT Test ## Book or ask a question - [Book Now](https://belloelectricsltd.co.uk/#chat) ## Related services - [Electric showers and bathroom electrics](https://belloelectricsltd.co.uk/services/electric-shower-installation) - [Lighting installation](https://belloelectricsltd.co.uk/services/lighting-installation)