Bathroom Fan Installation in Nanaimo & Vancouver Island
P3 Mechanical & Electrical installs and replaces bathroom exhaust fans in homes across Nanaimo and central Vancouver Island, ducted to the outside rather than into the attic. A straight replacement takes most of a morning, while running new duct through a finished ceiling costs more and takes longer. The visit is free, and the number comes from a written quote after we have looked at where the air currently goes.
Damp bathrooms and where the air goes
A shower puts a surprising amount of water into the air, and in a mild wet winter the house has nowhere easy to lose it. That is why bathrooms are where Island mould shows up first: speckling on the ceiling, mildew in the grout, a mirror that stays fogged.
Where the fan blows matters as much as how hard. Warm wet air discharged into a cold attic condenses on the roof sheathing and rots it quietly for years. BC Building Code requires bathroom exhaust to terminate outdoors — insulated duct, the shortest sensible run, a cap with a working damper.
What's included
- Fan sized to the room in CFM, not by what fits the existing hole
- Removal of the old fan and any duct venting into the attic
- Insulated ducting, sloped so condensate cannot drain back
- A wall or roof cap with a damper that closes
- Duct joints taped and the run supported, so it cannot sag into a trap
- Airflow checked and the ceiling made good
Pricing & what's covered
Free estimate
We price the job after an in-home visit, once someone has seen what's there.
- One-year warranty on our labour. Equipment and parts are covered separately, under the supplier's or manufacturer's own warranty.
- We'll go over licensing and equipment with you at the visit.
How it works
Look at what is there — where the fan vents, the room size, the ceiling above.
Choose the fan — CFM for the room, and a noise rating you will leave running.
Install — fan, duct, and cap, with the attic insulation put back.
Test — airflow confirmed at the grille and the damper checked.
Frequently asked questions
Can a bathroom fan vent into the attic?
No. BC Building Code requires bathroom exhaust to discharge outdoors, and the reason is practical: warm wet air hitting cold roof sheathing condenses, soaks the insulation, and rots the wood. It is a common defect.
How do I know if my bath fan is too weak?
If the mirror is still fogged ten minutes after a shower, or the ceiling is speckling with mould, the fan is not keeping up. Held to the grille, a square of toilet paper should stay up on its own.
How long should I run the fan after a shower?
Around twenty minutes after you get out, which is longer than most people leave it. A timer switch or a humidity sensor handles that without anyone having to remember.
Does a bath fan count as ventilation for the whole house?
Only partly. Bathroom fans are intermittent exhaust for one room. An airtight modern home also needs continuous mechanical ventilation, which in BC normally means a heat recovery ventilator.
How much does bathroom fan installation cost?
One of the smaller jobs on this site, though we publish no figure for it. Reusing a duct that is already routed correctly is the cheap end; cutting a new run through a finished ceiling and fitting an exterior cap is the other, and a quieter, better-sized fan costs more than the builder-grade one it replaces. The looking is free, and the figure goes in writing after it.
Ready to get it fixed?
Call now, or send us the details online and we'll follow up.