Bathroom Fan Installation 

Are you fed up with mildew growth or low humidity? A bathroom fan installation may be exactly what you need.

Each day, we spend between 30 and 60 minutes cleaning, rejuvenating, and pampering ourselves to feel and look our best. It seems self-evident that a restroom should be a pleasant place to spend time.

Bathrooms in the majority of Ottawa homes are dark, stuffy, and uninviting as a result of substandard function, design, and ventilation. Even closing the windows and thoroughly sealing them to keep out the heat or cold does not appear to help.

Normal bathroom activities result in high humidity, bacterial or fungal development, and persistent smells as a result of excessive moisture. Bathrooms become uninhabitable and unhealthy as a result of a lack of adequate fresh air, and the loud noise produced by an outdated exhaust fan only exacerbates the problem!

It is ideal to locate the bathroom fan over the sink or near the shower, where the greatest moisture accumulates. Distribute the vent fan evenly between the shower/tub and toilet space in an open bathroom. In a small bathroom, putting the fan in the centre of the room is ideal. When a toilet is installed in a later enclosure with a door, a second vent fan may be required. Ascertain that the vent louvre is functioning properly by ensuring that it closes when the fan is not in use.

It protects the home against cold air re-entering from the outside. Insulation is added to the duct around the hose that connects the fan housing to the exterior louvred cap. It will aid in reducing heat loss to the outdoors. Avoid caulking the space beneath the bathroom door. The fan expels the air, which should be replenished with fresh air. If your bathroom has high ceilings, you may require a stronger fan.


  • Introducing cool, fresh air into your bathroom lowering the likelihood of mould and mildew
  • Keeping frost and moisture off your windows
  • Preventing moist stains on the walls and ceiling
  • Preventing paint peeling

How Much Does it Cost to Install a Bathroom Fan in Ottawa?

Bathroom exhaust fan installation can cost between $850 and $1450 on average. (Mainly depending on ventalation requirements)

Certified electricians can cost $180 to $220 per hour for labour, and replacement takes 2 to 3 hours.
Wiring a new switch might cost another $100 to $250.

Request free quotes from licensed electricians in your area.


Choosing a Bathroom Fan

To get a better idea of what you need, think about the following questions.

What is the overall square footage of the bathroom?

How many amenities do you have in your bathroom?

What is the length of the exhaust duct?

Is it necessary to have lighting on the fan?

Is the dwelling to be built in the attic or on the ceiling?

Installing a Bathroom Fan Has a Number of Benefits

Warm, humid weather promotes the growth of mould, mildew, and microorganisms. High moisture levels in rooms can deteriorate interior room components such as wallboard, paint, and trim, not to mention the doors. If your bathroom lacks a fan and smells musty, it’s time to install one and see if major mould growth hasn’t already occurred.

Provide ventilation for a safe and healthy bathroom. A bathroom vent fan’s primary function is to exhaust wet, warm air generated by the usage of a bathtub or shower. Bathrooms without fans are prone to excessive moisture collection, which increases the likelihood of damaging bathroom walls, surfaces, and ceilings, as well as bathroom equipment.

How Long Does Installing a Bathroom Fan Take?

Our electricians will need to make a hole in the wall and run new wires in order to install a bathroom fan. In most cases, this will take between three and five hours, although it might take longer depending on the construction of your house. 

Attic access and venting options differ in each home.

Bathroom Exhaust Fan Installation FAQ

Who can install a bathroom exhaust fan?

Your new exhaust fan may be properly installed by a licensed electrician or experienced installer who can supervise the whole installation procedure.

Do bathrooms need exhaust fans?

In general, the answer is yes. Residential bathroom ventilation, whether via a window or a fan, is virtually always mandated by any municipality. Your bathroom fan should be capable of extracting at least 50 cubic feet of air per minute (CFM),

Can I install a bathroom fan myself?

A bathroom fan may be installed by any homeowner. You, like a contractor, must get the necessary permissions.

Before beginning any work, we recommend that you contact with a certified electrician.

What are standard bathroom sizes?

Dimensions of a Standard Fan Airflow capacity is measured in cubic feet per minute, or CFM, and is used to classify bathroom vent fans. Toilets that are smaller than 100 square feet in size should use standard fan sizes.

Is it possible to use ductless bathroom fans?

Ductless bathroom fans operate and can be quite effective in removing pollutants and/or foul odours. These fans are not always successful in dealing with excess moisture, but they are an ideal choice for smaller restrooms, such as powder rooms.

Is it possible to mount a bathroom fan on the wall?

Yes, you may set up the fan on your own. It’s not as tough as it appears to install a through-the-wall fan. Sure, there’s the fan type, power supply, vents, cutting, and a lot more to consider.