Electrical
Exhaust fan installation in Brisbane
In Brisbane's humidity an exhaust fan is doing more work than people assume. A bathroom without effective extraction holds moisture in the plasterboard, the ceiling and the cabinetry, and mould follows.
- Licence 90673
- ARCtick L169731
- Fully insured
The part that matters most is where the air actually goes. A fan that discharges into the roof space has not removed the moisture from the building, it has just moved it somewhere you cannot see.
What it covers
What's included.
Fan sizing
Extraction rate matched to the size of the room rather than defaulting to the smallest unit.
Positioning
Placed to draw air across the wet area, usually over or near the shower.
Ducting
Ducted to discharge outside through an eave, wall or roof vent.
Combination units
Fan, light and heat units installed and wired to separate switching.
Switching and timers
Run-on timers where useful, so the fan keeps working after the room is vacated.
Testing and certification
Circuit tested on completion and certified.
Why people call
Common reasons for this job.
- The bathroom mirror stays fogged long after a shower
- Mould keeps returning on the ceiling or grout
- There is no exhaust fan at all
- An existing fan is noisy, weak or has stopped
- A bathroom or laundry is being renovated
- An existing fan discharges into the roof space
Worth acting on
Signs something is wrong.
- Mould reappearing after cleaning
- Paint or plaster lifting on the ceiling
- A fan that is audible but moves very little air
- Condensation on windows and walls after showering
How Hoff works
The approach.
Hoff checks where the existing fan discharges before quoting a replacement. Reusing a duct that vents into the roof cavity carries the original problem into the new install.
Extraction rate is matched to the room. An undersized fan in a large bathroom runs constantly and still leaves the room damp.
A run-on timer is usually worth it. Most of the moisture is still in the room when people leave and switch the fan off.
Installing an exhaust fan is electrical work requiring a licensed electrical contractor. Hoff holds Electrical Contractor Licence 90673. Fans in bathrooms must be installed with regard to the zones around baths and showers set out in the wiring rules. Work is tested and certified.
Suitable for
Where this comes up.
Exhaust fans questions.
Outside, through an eave, wall or roof vent. Discharging into the roof space moves the moisture rather than removing it, and can cause problems in the roof over time.
It depends on the volume of the room. Hoff sizes it from the room rather than fitting the smallest available unit.
Yes, with the functions on separate switching so you are not forced to run all three together.
Usually because moisture is not being removed effectively — no fan, an undersized fan, or one that discharges into the roof space.
Generally yes. Most moisture is still in the room when people leave, so a run-on timer clears what a manually switched fan does not.
Related
Other services.
Send Hoff the exhaust fans details.
Describe the job in plain words and Hoff will come back to you personally with a written price.