How to Install an Exhaust Fan?: 5 Easy Steps | Crompton

How To Install an Exhaust Fan in Your Home

  • 17 November

  • 3 Minutes Read

Not having an exhaust fan in your bathroom or kitchen is the simplest way to attract mould and damage the paint on your walls. We’re sure you don’t want that. This is why you need to install an exhaust fan as they expel moisture and unpleasant odours from the room to create a comfortable and clean experience for everyone. What’s better is that the Cleaning of an exhaust fan is manageable and not too tedious either! And if you’re particularly concerned about the installation of an exhaust fan in a false ceiling, they can be fitted there with ease too. We’re here to simplify the exhaust fan fitting process and make bathrooms and cooking experiences much more pleasant. If you want to know more about exhaust fans and their types, read out detailed guide.

5 Easy Steps to Install an Exhaust Fan

Determine Fan Size and Location

The first step for installing an exhaust fan is finding the right-sized fan for your bathroom or kitchen. The size of the exhaust fan depends on the area of your bathroom or kitchen. Measuring the area and conducting independent research will help you identify the ideal fan. Another factor is deciding the mounting location of the fan. Additionally, if you’re lucky enough to have one, getting an exhaust fan fitting in the kitchen window would help get the moisture and cooking odours out efficiently.

Cut a Hole

Making a hole that will fit the size of the bathroom fan is the next step for exhaust fan fitting in the kitchen or bathroom. You can do it in 3 easy steps:

1. Mark the location by inserting roofing nails in the drywall. 

2. Identify the nail’s location from the attic and outline it with a pencil.

3. Start cutting it out by inserting a drilling hole and accompanying that with a saw.

If you don’t have an attic, find a joist from the bathroom by using a stud detector. Utilizing the fan enclosure for reference, cut the aperture from below.

Attach the Fan

The fan enclosure must then be screwed to the joist as the next step. Returning to the attic, join a 4-inch 90-degree duct elbow to the vent fan housing’s side outlet port. Aim the elbow straight up and use foil duct tape to attach it to the port.

Place a cable connector in the knockout hole on the fan housing’s side. The four metal brackets should be slid into the vent fan’s side tabs. Centered on the ceiling hole, position the vent fan between the joists.

Attach it to the Joists

Next, extend the brackets and bring them in contact with the joists. Secure them with drywall screws and take the flexible duct, attaching it to the fan. Feed the connector with an electrical cable, and tighten it with a connector screw.

Route the Bathroom Fan to the Exterior

Once you verify the placement of the fan, attach the flexible ducting to the fan and the vent. Ensure the tubing runs as smoothly as possible. After completing the fitting process, verify if working of the fan is efficient.

Getting an exhaust fan fitting for the bathroom and kitchen gets rid of bacteria and mold. Installing an exhaust fan is pretty simple once you get the basics right. If you’re new to construction, we hope this guide helped you understand the process! Know more about how to choose right exhaust fan.


Can I install an exhaust fan myself?

With the right tools and the correct guidance, you can install the exhaust fan yourself.

How much does it cost to install a bathroom exhaust fan?

The price of exhaust fans ranges anywhere between ₹1,500/- to ₹18,00/- You can decrease the cost by cutting down on labor costs and installing it yourself.

How do I wire an exhaust fan to an existing light switch?

Shut the power and remove the light and wire connectors. Next, you run a cable to the housing box and attach the cable to the fan. Attach the necessary wires and restore the power.

Where should a bathroom exhaust fan be placed?

Place the exhaust fan in the shower or right outside the shower so you can eliminate the source of the moisture directly.

Do I need an exhaust fan in my bathroom?

Exhaust fans eliminate moisture and stale odours from the bathroom, preventing molds, cracks, and the peeling of paint in the bathroom.