How to Install a Kitchen Extractor Fan Through a Wall

How to Install a Kitchen Extractor Fan Through a Wall

Are you tired of cooking in a smoke, steam, and odour-filled kitchen? Installing a kitchen extractor fan through a wall can help improve your kitchen’s air quality by removing excess moisture, cooking smells, and smoke. We will provide here a comprehensive guide on how to install a kitchen extractor fan through a wall. This guide will cover all the necessary steps, from planning and preparation to the final installation.”

Understanding Kitchen Extractor Fans

A kitchen extractor fan, or range hood, is a ventilation system designed to remove smoke, steam, and odours from the air. The fan is typically installed above the stove or cooktop, drawing air through a filter before exhausting it outside through a duct. You can duct or use ductless kitchen extractor fans in various sizes and styles to suit different kitchen layouts and design preferences.

Planning for the Installation

Before you start installing your kitchen extractor fan, you will need to do some planning and preparation. Here are some important steps to follow:

Measure the Space

To determine the size of the extractor fan you require, measure the space above your stove or cooktop. Most extractor fans are available in standard sizes, so choose a fan that will fit your space.

Check Local Building Codes

Check your local building codes to ensure you can install an extractor fan in your kitchen. Some areas have specific requirements for ventilation systems, and you may need a permit to install a fan.

Determine the Type of Fan

Decide whether you want a ducted or ductless kitchen extractor fan. Ducted fans are more efficient at removing air from the kitchen but require a vent to the outside. Ductless fans use filters to clean the air and recirculate it into the kitchen.

Choose the Style

Choose a style of extractor fan that matches the design of your kitchen. Many different styles are available, from sleek and modern to traditional and decorative.

Gathering the Tools and Materials

Before you start the installation process, you will need to gather the following tools and materials:

  • Extractor fan
  • Ducting
  • Vent cap
  • Electric drill
  • Hole saw
  • Screwdriver
  • Screws
  • Electrical cable
  • Wire connectors
  • Circuit tester

Choosing the Location for the Extractor Fan

The location of your kitchen extractor fan is important for ensuring that it works effectively. Following are some tips for choosing the right place:

  • Install the fan above the stove or cooktop to capture steam and smoke as soon as they are produced.
  • Position the fan at least 24 inches above the cooking surface to prevent heat damage.
  • Place the fan close to an exterior wall to make ducting installation easier.

Marking the Hole for the Fan

Once you have chosen the location for your extractor fan, you will need to mark the hole for the fan. Here’s how:

  • Hold the fan in place and keep the outline with a pencil.
  • Use a spirit level to ensure the fan is level, and adjust the position as necessary.
  • Mark the centre point of the hole on the wall.

Cutting the Hole in the Wall

Once you have marked the hole for the fan, it’s time to cut the hole in the wall. Here’s how:

  1. Use the drill to make a hole in the centre of the marked circle.
  2. Use a spot saw to cut out the circle for the fan.
  3. Remove the cutout circle from the wall.

Installing the Ducting and Fan

Now it’s time to install the ducting and fan. Here’s how:

  1. Attach the ducting to the fan using screws and duct tape.
  2. Push the ducting through the hole in the wall.
  3. Secure the ducting to the wall using clamps or duct tape.
  4. Attach the vent cap to the end of the ducting outside the house.

Wiring the Extractor Fan

After installing the ducting and fan, wire the extractor fan is the next step. Here’s how:

  1. Cut off the power supply to the circuit on which you will be performing your task.
  2. Connect the electrical cable to the extractor fan.
  3. Connect the other end of the line to the electrical supply using wire connectors.
  4. Test the circuit using a circuit tester to ensure the power is off.
  5. Connect the wires according to the manufacturer’s instructions.

Installing the Extractor Fan Cover

Once the wiring is complete, installing the extractor fan cover is time. Here’s how:

  1. Place the body over the fan and secure it using screws.
  2. Test the cover to make sure that it is securely attached.

Testing the Extractor Fan

Now it’s time to test the extractor fan to ensure it works properly. Here’s how:

  1. Turn on the fan and check that air is drawn up through the ducting and out of the vent cap.
  2. Check that the fan is operating quietly and smoothly.
  3. Test the fan before installing it at different speeds to ensure that it is functioning correctly.

Cleaning and Maintenance

Regular cleaning and maintenance will help to ensure that your kitchen extractor fan continues to work effectively. Here are some tips:

  • Clean the fan and filter regularly to remove grease and grime.
  • Replace the filter as needed.
  • Check the ducting for blockages or damage and clean or repair it as necessary.

Troubleshooting Common Problems

Here are some common problems that you may encounter when installing a kitchen extractor fan, along with some solutions:

  • The fan is noisy: Check that the fan is securely mounted and that the ducting is connected correctly and not blocked.
  • The fan is not drawing air correctly: Check that the ducting is not blocked or damaged and that the vent cap is not obstructed.
  • The fan is not working: Check that the electrical supply is connected correctly and the circuit is not tripped.

Safety Precautions

When installing a kitchen extractor fan, it’s important to take the following safety precautions:

  • Cut off the power to the circuit that you will be working on.
  • Use a ladder or step stool to reach high places safely.
  • Must Wear protective materials, such as gloves and safety glasses, to prevent injury.


Installing a kitchen extractor fan through a wall is relatively straightforward, but it requires careful planning and attention to detail. Following the steps outlined by kitcheny in this guideline and taking the necessary safety precautions, you can successfully install a kitchen extractor fan and enjoy a cleaner, healthier, and more comfortable kitchen environment.

Frequently Asked Questions

How much does installing a kitchen extractor fan through a wall cost?

The cost of installing a kitchen extractor fan through a wall can vary depending on factors such as the type of fan, the size of the space, and the complexity of the installation. You can expect to pay between $200 and $500.

Can I install a kitchen extractor fan myself?

Yes, you can install a kitchen extractor fan if you have the necessary skills and tools. However, if you need more confidence in installing the fan safely and correctly, it’s best to hire a professional.

Do I need planning permission to install a kitchen extractor fan?

In most cases, you will not need planning permission to install a kitchen extractor fan through a wall. If your residence is categorized as a listed building or is located within a conservation area, it is possible that you will require authorization from your local planning authority.

How often should I clean my kitchen extractor fan?

You should clean your kitchen extractor fan and filter at least once every six months. However, if you use your fan frequently, you may need to clean it more often.

How do I know if my kitchen extractor fan is working correctly?

To test whether your kitchen extractor fan works correctly, turn it on and hold a piece of paper or tissue up to the vent. If the fan works correctly, the paper or tissue should be drawn up towards the vent. If not, there may be an issue with the fan or ducting that requires attention.

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