Fitting Cat Flap in UPVC Door Panel Cat flaps allow your pet move around at their own pace, without you having to let him in or out. They can also help prevent your cat from urinating inside the house.

It is easier to install the cat flap on a upvc panel than on a glass one, but you will require some knowledge and correct tools.

Take a measurement of the door

The installation of a cat flap inside the door can be a challenge but if you choose the right type of cat flap be patient and follow the instructions provided it should not prove to be too difficult. We will show you how to mark out the shape, then use the jigsaw to slice the door's opening and then finish off the job by attaching the cat flap to the door. This will ensure the flap remains in place and protects the doors from damage caused by wind and rain.

The first thing to do is determine the width of your pet in order to get a precise measurement of the size of cat flap you will require. This will ensure that the flap is big enough to let your pet leave and enter the home without needing to open and close the door each time, but also small enough to stop them from going too far in either direction.

Once you have the measurements you can mark where on the door the template should be placed, usually this is done with an X, but some kits include an illustration that outlines where to drill, if yours does then stick it to the door and use a pencil to draw around the door. If your door has a sill or moulding along the bottom edge of it then make sure you have enough clearance from these because this will ensure your cat's safety and prevent them gaining access to your home.

Utilize a set square to check that you're cutting correctly and to make sure the hole is in a rectangle shape. Once you are satisfied with the result, you can start removing the rest of the door material. Use a set square to ensure you are cutting the material properly and that the hole is a rectangle. Once you are satisfied with the result, you are able to take the door material off.

Draw a Line

The cat flap lets you to let your pet in and outside without having to worry about unwanted visitors or unwelcome gifts. It also helps prevent draughts and helps to keep your home's temperature steady. However, installing an animal flap on your door could be an intimidating task for those who haven't done it before. This can lead many people to seek out an expert joiner or carpenter to do the job instead. While this is definitely an option, it is possible to do the job yourself if you own the proper tools and follow instructions with care.

This is much easier to do on wooden doors, but it is still possible with uPVC. However you should be cautious not to harm the doors as this could cause the door to be damaged and invalidate your warranty. First, you need to take measurements of the door to ensure that it can accommodate the new cat-flap. This isn't too difficult for a standard uPVC door, but you might need to take extra care if you are using an insulated or composite type of door since these can be more difficult to cut than solid uPVC panels.

The next step is to determine the height of your cat's belly. This is the distance between the floor and the bottom of your cat's stomach. You will need to find an area at the entrance that allows your cat to pass through comfortably. Once you know this you'll have to draw the area using a pencil and a spirit level to be certain that the hole you create will fit your cat.

Once you've marked the area, it's time to cut out the hole. You will require an jigsaw. It is crucial to be patient to ensure that the cuts are smooth and straight rather than rough and uneven, as this could damage your door. cat flap installation near me and a dust mask while using a jigsaw. Inhaling sawdust can be harmful for your health. After you've cut the hole, you'll require sandpaper for smoothing the edges so that the cat flap can be easily inserted.

Cut a Hole

It isn't easy to put an animal flap on the door panel or double glazing unit. If you're not experienced in DIY, it's best to employ a professional to do the job for you. A faulty job can not only be unsightly, but also pose a security threat. It could allow cold air to enter when the cat is outside and hot air out when the cat is inside.

Mark the hole's position on the door using an eraser and a spirit level. This will ensure that it is correctly positioned and aligns with the rest of the door. Make sure you have some sandpaper on hand to smooth out any rough edges.

After the line is drawn, you can cut the hole using a jigsaw, remember to wear any necessary safety equipment when working with a power tool. If you are concerned about the sound produced by the jigsaw, you can purchase an electric version that is quieter and more user-friendly to use.

It is important that you only cut away the material needed for the fitment of the cat flap. A small amount of material will be required for the thickness of the wall of the flap, but cutting off more than this can cause problems or damage the doors frame.


If the door is made of upvc and features a metal panel or frame, it could interfere with the microchip flap. In this scenario you'll need create an extra-large hole to ensure that the metal does not touch the wall of the flap.

If you're planning to install the cat flap onto a upvc door or double glazed windows with a frame made of metal, you'll need to talk to a specialist who can supply you with a new glass pane with the hole for the cat flap inside. It is much less expensive to do this than trying to fix a cat flap into an existing glass pane that was not designed specifically for this purpose.

Install the Flap

Cat flaps allow your pet to leave and come at their own pace, giving them the ability to unwind inside the house when they're feeling like it. However, if you have an uPVC door, it may be difficult to fit a cat flap, particularly when you don't have a glass pane that can be cut to accommodate one. If you're looking to install a half-glazed uPVC replacement panel, it's possible to install the cat flap. It's not a simple matter of cutting an opening in the door. It is also necessary to take a few steps to ensure that the door is secure.

A composite, uPVC, or GRP door panel is generally comprised of a plastic skin which is bonded to an insulating polystyrene base. The material is quite fragile and care should be taken when cutting through it to avoid damaging. This type of door usually includes a template that you can use as a reference to cut the hole into the door.

Once you have marked the location of the hole in your door, it's now time to fit the cat flap itself. You can buy and fit various models that range from simple button operated ones to microchip-activated ones that only let in your pet. However, regardless of what type of cat flap you select, it is essential to ensure that your cat can use the flap and not get stuck outside in the rain.

It is a good idea to opt for circular fittings rather than one that is square, since circles are more securely cut into the door glass. This is because square holes are more likely to break the glass when they are drilled. It's also a safer option as you don't risk drilling into toughened glass that may break and cause injury to your pet or family members. This is especially crucial if you have elderly or children living in your home that could be hurt by glass shattering.