Whether you’re fitting a fan for the first time, replacing an old or noisy one, or trying to work out why your current fan isn’t clearing steam the way it used to, the questions are usually similar: does this need a new fan, a repair, or is something else going on? Voltify Contractors handles extractor fan installation, replacement and repair — most commonly for bathroom fans — across East and South-East London, as part of our full range of electrical services.
This page covers extractor fans for ventilation (bathrooms, en-suites, utility spaces and similar rooms). If you’re after a kitchen cooker hood, that’s covered on our extractor hood installation page instead, since it’s a different type of appliance with different requirements.
Install, Replace, or Repair Your Extractor Fan?
- Installation is the right starting point if the room has no extractor fan at all, or you’re adding one to a newly converted space (a loft en-suite, for example).
- Replacement usually makes sense when an existing fan is old, increasingly noisy, or clearly no longer performing — sometimes it’s more cost-effective to fit a new, more efficient fan than repair an ageing one.
- Repair is worth considering first when a fan has a specific fault — it’s stopped running, makes an unusual noise, or trips a circuit — and is otherwise a reasonably recent or good-quality unit.
Which of these applies isn’t always obvious from the symptom alone, which is why the fan (and, where relevant, the ducting) is assessed on site before confirming the right approach.
Signs Your Bathroom Extractor Fan May Need Attention
- it’s noticeably noisier than when it was new;
- it runs but doesn’t seem to clear steam or smells effectively;
- it’s stopped running altogether, or only runs intermittently;
- it trips the circuit it’s on when switched on;
- condensation or mould is building up in the room despite the fan being used.
A word of caution on that last point: persistent condensation or mould isn’t always caused by the fan itself. Ducting that’s blocked, too long, or poorly routed, or ventilation needs that have simply outgrown an older fan, can produce the same symptoms. Part of assessing the job is working out whether the fan, the ducting, or both need attention. If a fan repeatedly trips its circuit, that can point to a wider issue better suited to electrical fault finding.
What Affects Extractor Fan Installation or Replacement Scope
- Ducting. Where the fan vents to — outside directly, via ducting to an external wall, or into a loft space — affects both the installation method and, in some cases, the type of fan suitable for the room.
- Existing wiring. Fitting or replacing a fan involves connecting it to a switched electrical supply; the condition and layout of the existing wiring can affect how straightforward this is.
- Fan type. Options range from simple extract-only fans to models with humidity sensors, timers or in-line options for longer duct runs — the right type depends on the room and how it’s used.
- Access and location. A fan on an external wall is generally simpler to fit than one requiring loft access or a long duct run.
What to Have Ready Before Booking
- whether you’re installing a first-time fan, replacing an existing one, or dealing with a specific fault;
- roughly how the current fan (if any) vents — straight through an external wall, or via ducting;
- how old the current fan is, if you have that information;
- any specific symptoms (noise, smell, tripping, condensation) and when they started.
What an Extractor Fan Visit Involves
Fitting or replacing an extractor fan involves isolating the electrical supply to the fan before work begins, fitting or replacing the unit and any associated ducting, and reconnecting it safely to the switched supply — this is electrical work and isn’t something to attempt without a qualified person. For a repair, the fan and its connection are assessed first to confirm whether it’s a straightforward fix or better addressed with a replacement. For general guidance on safe electrical work in the home, see Electrical Safety First.
The documented minimum call-out is £80 for the first hour; the total cost for installation, replacement or repair depends on the type of fan, ducting requirements and access, and is confirmed once these are known.
Areas We Cover for Extractor Fan Installation
Voltify Contractors installs, replaces and repairs extractor fans across East and South-East London, including Canary Wharf & E14, Stratford & E15, Bow & E3, Canning Town & E16, Greenwich & SE10, Woolwich & SE18 and Barking & IG11. See the areas we cover for full details.
