Installing a cat flap into your home could be a big step for any pet owner. There are many options available to you, regardless of whether your cat is older and requires additional security, or you have kittens that require to be examined.


Installing a cat flap can be intimidating for people who aren't professionals, but with the right instructions, it's easy to complete. Preparation, planning and accuracy are the key to success.

Select the Right Door or Windows

There are many different types of cat flaps, including some with locks that can be used to keep your pet from leaving or inside, and others that have high tech features like microchip door entry systems. It is important to think about how it is easy to teach your cat to use the flap before you buy and install one.

Depending on the design of your house, it's usually best to put the cat flap near the form of a door or window that opens out into an area of protection in the garden so that your cat will feel secure leaving and entering the home. This will also allow them to get back inside if they're chased by other animals or human beings who wish to hurt them.

It is possible to install a cat-flap inside a uPVC or composite door, but it's not as simple as installing one in a wood door. It's because uPVC or composite doors are available in different thicknesses. This can impact the how holes are cut and the type of door you can fix into.

To avoid costly errors, it is recommended that you consult an expert glazier before installing the flap on a door with a glass front. If you're installing the flap onto an existing wooden door it is recommended that you introduce your cat first so that it can become familiar with its dimensions and shape.

Take a look at your cat's belly measurement

In order to put in a cat flap that's suitable for your pet, you'll have to measure your cat. This will allow you to ensure that the flap is the right height for your door or window and that it's wide enough to allow them to get in and exit easily.

Place your pet on its back and gently move your fingers across their belly. Find a squishy fat pad around the lower back and face, as well as the limbs. The padding helps protect your pet and allows it to move more freely, particularly when performing feline acrobatics.

You can also take into account the weight of your pet to determine how large an opening you require. If your cat weighs at or over 5kg for instance, a 14 x 12cm cat flap opening is recommended.

Take a measurement of your door or window

This type of cat flap, as its name suggests, is designed to be affixed to the door. It lets your pet enter and exit at its convenience. They are typically made of plastic or aluminium and simply rest in the middle of the door with the possibility of a swinging door that opens by pressing lightly on either side. The flaps can be locked that provide additional security so your cat cannot simply traverse the door from outside.

Cat flaps are also commonly used on windows. They can be easily installed, but they need to be installed at a high level as cats and dogs find it difficult to reach them. If the window is not sufficient to accommodate a cat's flap, you can opt for ramps, steps, or stairs that are specially designed to aid the animal in getting to it.

cat flaps for french doors Repair My Windows And Doors is possible to put an egress into brick walls, however it is not recommended for those who aren't experienced in masonry. This could weaken the structure of the wall. Before you begin, it's essential to ensure that the wall is free of pipes and cables. You should always consult a professional if you need to make a hole for pipes and cables. It is also recommended to wear safety goggles and a dust-proof mask to prevent inhaling any sawdust that is created by cutting holes in the walls of your home.

Select the Cat Flap that is Right for You.

There are numerous cat flaps on the market, and have various features. Some cat flaps have security features like magnetic locks or microchips that block entry by anyone who isn't authorized. They also stop your pet from letting guests or other animals into the house. Certain seals are weatherproof and have insulation to block out the elements and keep out drafts.

There's also a variety of sizes based on the size and breed of your pet. Some cat flaps are rectangular whereas others are circular or square. Choosing the right type of cat flap will be determined by the space you have available and the kind of window or door you want to attach it to.

The last thing to do is consider the type of opening mechanism your cat flap will use. The cheapest option is a simple swing-out aluminum or plastic door. It won't prevent other animals and cats from entering however, and you could be letting in draughts.

It's time to install your cat flap. Start by marking the height of the belly on the door using your ruler. Use a spirit level to ensure that the line is sitting straight on the door and not too low. Utilize your spirit level to draw a template for the cat flap. Then, you can use your jigsaw to cut out the door's outline. Once you are happy with the result then sand the edges and drill through the pencil marks to make holes for screws.

Make sure you have the tools ready

Like all DIY tasks, it's recommended to have the right tools for the job. You'll need a cat flap along with tape measure and pencil along with a spirit-level, drill, and a jigsaw, depending on the type of door or window.

Consult the manufacturer before making any changes to a composite door. This could invalidate the warranty, or cause the weathertight seal to become damaged. In this instance it's likely that you will need to replace the glass with a brand new piece of toughened glass.

You'll need the jigsaw to cut your cat flap from a wooden or uPVC door. Follow the instructions that are provided by the manufacturer. If you can, use a template to help you determine the size of the hole you'll have to cut.

After you've cut the required hole, you'll need to smooth the edges of the opening to smooth them. This will prevent the possibility of water damage and rust. Also, you should apply any sealant that is needed to the back of the cat flap and to the holes in the window or door to keep out rain and wind. Once the sealant is dry, you're ready to install your new cat flap!

Install the Flap

If you want your cat to come and go at will, installing flaps can be helpful. Most people can install the flap by themselves. However when you plan to install it on the form of a glass or uPVC type door, you may need a professional.

Take a look at the instructions included with your cat flap. You will find a template drawing. This will give you an idea of where the holes are to be drilled for the flap in the door. Then, mark the areas in which you will need to drill with pencil.

After you have marked the area on your door, use the jigsaw to cut the shape for the cat flap. This is a relatively simple task however, you'll need to be comfortable with the saw. If you're worried about doing this yourself, there are many companies that can complete this for you at a minimal cost.

Next, you will need to attach the interior part of the flap onto the hole in your door. You may have to apply sealant before making this move to ensure it stays watertight and weather resistant. The outside of your cat flap could be placed on the bolts on top, and then securing them. It is recommended to test the cat flap with your cat to make sure that it functions properly and that they can get in and out of it.