Exhaust Fan & Bathroom Heater Installation Adelaide
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- 13+ years in the trade
- 24/7 electrician
- Licensed & insured · PGE 229 469
An exhaust fan pulls steam, smells and damp air out of a bathroom, laundry or kitchen. A bathroom heater adds warmth, and a 3-in-1 unit combines a fan, a heater and a light in one fitting. All of them need licensed wiring, and the fan needs a proper duct to the outside, or the moisture simply ends up in your roof.
Ventilation is a regular job: over 60 jobs for home owners in the 12 months to October 2026 involved an exhaust fan, and about 20 involved a bathroom heater or 3-in-1 unit.
Signs you need an exhaust fan, or a better one
- Mirrors stay fogged long after a shower.
- Black or green mould on the bathroom ceiling or in the corners.
- Peeling paint, bubbling plaster or a damp smell in the laundry or toilet.
- An existing fan that is very noisy, rattles or barely moves air.
- Cooking smells that hang around because the kitchen has no way to vent them.
A fan that is running but not venting outside can be as bad as no fan. It moves moist air into the roof space, where it can damage timber and insulation.
Exhaust fans: ceiling, wall and window
Most bathroom and laundry fans are fitted in the ceiling and ducted to the outside through the roof or an eave. In some rooms a wall or window fan is easier. The right choice depends on your ceiling, your roof type and where the duct can run.
- Ceiling fans: the most common choice for bathrooms, toilets and laundries.
- Wall or window fans: useful where a duct cannot run through the ceiling.
- Inline fans: the motor sits in the roof space and pulls air through a duct, which makes the room quieter.
- Replacements: a like-for-like swap on the same wiring and duct is usually quick.
- Timers and humidity sensors: a run-on timer keeps the fan going after you leave, and a humidity sensor switches it on when the room gets steamy. Both clear moisture faster and help stop mould, and they need the right control wired in.
Bathroom heaters and 3-in-1 units
A bathroom heater warms the room quickly on a cold morning. Older units use a heat lamp. Many homeowners now ask for a 3-in-1 unit that has a heater, an exhaust fan and a light in one fitting. Our guide to 3-in-1 bathroom heaters covers what to weigh up before you buy.
These units are bigger than a standard fan and draw more power, so we check the wiring and the circuit before we recommend one. We also check where it sits in relation to the shower, because bathrooms have zones with strict rules about what can be installed where. Your electrician should know these zones, and we do.
If an old heat lamp unit has stopped working, we can replace it with a new heater or a 3-in-1 on the same ceiling opening in many cases.
What the installation involves
- We check the ceiling, the roof space and the route for the duct.
- Power is switched off and the old fitting is removed, if there is one.
- The new unit is mounted, wired and connected to the duct.
- The duct is run to the outside and sealed so moist air cannot leak into the roof.
- We test the fan, heater and light, and check the air is really leaving the building.
Roof access is sometimes tight, so tell us about any limits such as a low roof space or a tiled roof.
How long does it take?
Swapping an existing fan is often done in an hour or two. A new fan with a new duct, or a 3-in-1 unit with extra wiring, takes longer. We will give you an honest time estimate after we look at the roof space.
Safety, licensing and what to ask
Bathroom wiring must be done by a licensed electrician. Hoile Electrical holds SA electrical licence PGE 229 469. A fan in a kitchen or laundry can also be paired with a rangehood so cooking steam has somewhere to go.
- Can I see your licence number?
- Where will the duct go, and does it vent outside the building?
- Is the unit suitable for the position in my bathroom?
- Is the circuit protected by a safety switch?
- What is the workmanship guarantee, and who removes the old unit?
Call us for exhaust fans and bathroom heaters
We fit and replace exhaust fans, heat lamps and 3-in-1 heaters in homes across metro Adelaide, starting with the western suburbs. If you are renovating a bathroom, we can also look at downlights and light switches. Call 0482 099 388 any time.
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Fast, detailed and reliable workers! Eased my mind about concerns and were kind to my children when they were being annoying!
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Excellent service! Professional, efficient, and neat work. Very happy with the installation. Highly recommended!
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Hoile Electrical arranged an electrician very quickly to review my smoke alarms. Ross was very friendly, efficient and helpful. Much appreciated and will definitely call them for electrical issues again.
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Gerad arrived on time.spent a lot of time explaining the process of improving our air conditioning,would recommend him for your air conditioning needs, Craig
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Hoile Electrical were recommended to us and we can see why. Very quick and efficient service by James and Nathan. Excellent communication all the way through. The whole experience was faultless.
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Very professional and good at what they do.
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Common questions
Does an exhaust fan need to vent outside?
Yes. A fan that vents into the roof space moves damp air into your ceiling, which can lead to mould and damage. A proper duct to the outside is part of a correct install.
What is a 3-in-1 bathroom heater?
It is one fitting that holds an exhaust fan, a heater and a light. It saves ceiling space and means one switch plate often does everything.
Can you replace my old heat lamp unit?
In many cases yes, often using the same ceiling opening. We check the wiring and the ceiling first.
How do I know what size exhaust fan I need?
Fans are sized by how much air they move compared with the size of the room. We choose a size that suits your bathroom or laundry when we see it.
Why is my exhaust fan so noisy?
Dust, a worn motor or a loose fitting are common causes. If cleaning does not help, the fan may need to be replaced.
Can you install an exhaust fan where there is not one now?
Often yes. We check the ceiling or wall, where the air can be sent outside and where the power will come from, then tell you what the job involves before we start.
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