A bathroom that fogs up every morning, a laundry with mould creeping across the ceiling, or a windowless toilet all point to the same fix: a properly sized exhaust fan, wired and ducted so it actually moves the damp air out of the house.
Ring 0421 772 661 and tell us the room and what's there now. We'll quote the fan, switching and ducting in writing.
Condensation running down walls and mirrors long after a shower, black spotting on grout and ceilings, peeling paint, a musty smell that never quite clears, and towels that stay damp are the usual signs. Older bathrooms often have a small fan that was never ducted, so it simply pushes moist air into the roof space, where it can cause its own problems with timber and insulation.
Exhaust fans are also worth fitting in laundries with a clothes dryer, internal toilets, ensuites carved out of an old bedroom, and kitchens without a ducted rangehood. If you're torn between a fan and a combined heater unit, our comparison of 3-in-1 heaters vs exhaust fans lays out the trade-offs.
We pick a location that draws air across the room, usually near the shower and away from the door, so fresh air comes in under the door and leaves via the fan. The fan has to suit the space: a large bathroom with a high ceiling needs more extraction than a powder room. The unit is fitted to the ceiling, connected to a switch or control, and ducted to the outside through an eave, wall or roof outlet.
Switching options include running it with the light, a separate switch, a run-on timer that keeps it going after you leave, or a humidity-sensing control. For bathroom wiring detail, including heat lamps and wet-area zones, see our bathroom exhaust fan and heat lamp guide.
A fan that hums, rattles or no longer spins, swapped for a new unit with the ducting checked while we're up there.
Connecting an existing fan that vents into the roof to an outlet outside instead.
Cutting in a new fan, running cable from a nearby circuit and adding a switch.
So the fan keeps working after the shower without anyone remembering to leave it on.
Smaller rooms that still need air movement, particularly with a dryer running.
Cable and ducting planned before the ceiling goes up. See our bathroom renovation electrician page.
Replacing a fan in an existing ceiling hole with power already there is the simplest job. The cost goes up if a new cable and switch have to be run, if the ceiling hole needs enlarging, or if ducting has to travel a long way to reach an eave or external wall. Roof outlets need weatherproofing, which can involve a roofer.
Access to the roof space is the big variable. A roomy single-storey roof is quick. A tight terrace roof, a bathroom under another floor, or an apartment with a concrete slab above may need a wall-mounted fan or a different duct route altogether.
Many terrace bathrooms sit in a rear lean-to with a low, skillion roof and almost no ceiling space, which limits fan choice and duct routes. In Federation and inter-war houses, the bathroom often moved inside decades ago, sometimes with a fan that was never ducted at all. Apartment bathrooms commonly connect to a shared riser, so the replacement fan has to suit the existing arrangement and any strata rules.
We give you a written quote that covers the fan, switching and ducting. On the day we fit the unit, connect it, run the duct, and test the circuit to AS/NZS 3000. Where the job involves new circuit work we lodge a Certificate of Compliance for Electrical Work. Before leaving, we check the fan runs on every switching mode and that air is actually leaving at the outlet.
We duct to the outside. Venting into the roof space pushes moist air onto timber and insulation, which can cause mould and damage over time.
Often yes, with a wall-mounted fan through an external wall or a slim ceiling unit with a short duct. We look at the room first.
It can, but a run-on timer or separate switch usually works better, so the fan keeps clearing moisture after you turn the light off.
A rattle or hum often means worn bearings. Replacement is usually the practical answer, and we check the ducting at the same time.
Yes. Send the model so we can confirm the ceiling cut-out and duct size before the day.
NSW Electrical Contractor Licence 332956C · Fully insured · Since 2016 · Based in Hurlstone Park
Excellent electrician Blue Link Electrical was honest, knowledgeable, and took the time to answer my questions The work was completed quickly without rushing and everything works perfectly Will be using them
Very professional and reliable service. Blue Link Electrical were punctual, friendly, and knew exactly what they were doing. The job was completed to a high standard and the place was left clean. Highly recommend to anyone needing electrical work.
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