Fitting a Cat Flap

· 6 min read
Fitting a Cat Flap

It might seem daunting to put up a cat flap but with the right guidelines, it's not all that difficult. First, determine the height you want the flap to be (on average or belly height). Mark this point on the door, and use the template provided as a guideline to drill.

If you have a kitten that is still a newborn and you want to keep the door open, gently prop it slightly open and encourage it to pass through. Reward the kitten every time it goes through.

Take a measurement of the door

A cat flap is an excellent option to allow your pet to move inside and out of your home whenever it wants. This can keep your cat healthy as it will ensure it is getting enough exercise and also be able to go back inside if it is stranded outside in bad weather. It can also cut down on the amount of time you'll have to spend letting it out or in. It can also keep your home safe by letting you know when it's been out.

However, it is important that the cat flap is correctly fitted to prevent your pet from being able to escape through it or be pushed through by any other animals (e.g. dogs). It is essential to measure the height of your pet's belly and the doorway of your house to make sure that the flap is at the correct height. You can adjust the position of your flap when your cat is smaller or taller than average.

The next step is to utilize a spirit level mark the center of the door where you will put the flap. Using the marking as a guideline, you can use the jigsaw and cut the form of the flap in the door. After you have cut the area then sand the edges to create smooth surfaces. Drill any necessary holes.

The installation of a cat flap should not take more than two hours. However, the process could be a little more complicated in the event that you have to put it into the frame of a uPVC or composite door as these doors come with a wide range of thicknesses, which affect how the holes are cut and what they are fixed into. This is why we always recommend hiring a professional to carry out the task, especially when you've never dealt with glass before.

Measure Your Cat

A cat flap can save you from hours of listening to your pet meow to let it in or out. This is especially helpful if you are at work most of the day and your cat is in the waiting room until you come home in any weather.

If you're planning to put a cat flap in your door, it is crucial to determine the size of your cat prior to beginning the task. While it may seem an easy task, it is important to get the measurement right or your cat may find it difficult to use.

First, ensure that your cat is calm before you begin taking measurements. You'll need to keep your cat in a place that they are unable to move. Also, make sure that the measuring tape is flat and not curved against their body. You can get a precise measurement by keeping the measuring tape or ruler flat against the body of the animal from the top to the bottom.

Once you have the measurement of your cat's body, it's time to take a look at the door and decide on where you want to place the flap. Position the flap at the level of your cat's belly. This will allow them to pass through the door without much effort. This will also stop the flap making a lot of noise as it swings open and shut.

You should think about the thickness of the uPVC or composite door too. While all timber doors have the same thickness to them, uPVC or composite doors can differ greatly in their overall design.  cat flap installation near me Repair My Windows And Doors  makes fitting a flap for your cat more difficult as you have to make sure that the hole is the right size.

It is also worth reading through the directions included with the cat flap kit to find a template drawing that can be used to determine the location of the hole in the door. This will help you determine where the hole needs to be placed and ensure that the template is placed properly on the door. Using a spirit-level to check that the template is right against the door will be very helpful.

Cut the Flap

Before you can install your cat flap, you'll need to cut the door panel in order to make a space big enough to accommodate it. This can be a challenging job, and it is recommended to seek out the assistance of an expert cat flap fitter for this step in case you don't have the expertise or knowledge to complete the task yourself. It is also recommended that you read the instructions included with the cat flap kit to find out how to do this properly.

To do this you need to take a measurement of the height of your cat's or kitten's belly and use that as an indicator point. As a rule of thumb, place the cat flap around 10-15 centimeters higher than the ground. This is the typical height of the belly for cats. Your cat will be able to move through the flap comfortably and it will also give any other cats or curious neighbours difficult time trying to enter or leave.

The position of the cat flap on the door using a pencil. Next, if your kit includes an outline of paper, place this over the door and use the marks to drill holes into every corner of the template. Then, you should be able to cut out the template and replace it with the cat flap.

If you are installing your cat flap inside a door made from wood or uPVC, you can do it yourself if you are confident enough to use using a Jigsaw. Be cautious not to cut through the vertical rails or mullions of your door. You can use a jigsaw cut the panel into a circle or square, depending on the design of your cat flap. Be patient and don't try to make the jigsaw cut faster.

Once the hole has been made, carefully place the cat flap into its new home. Make sure it is firmly secured. If it has caps on the screws, then place these onto the protruding screws. Once the screws are in place, sand the rough edges of the cut, and then seal any gaps to ensure that there aren't any draughts getting into your home.

Place the Flap

If you have a basic cat flap you can leave it open and encourage your pet to use it by putting a small amount of cat food in the front of the door. You can also push the cat using sticks or your hand. Once your pet has become comfortable walking through the flap it will be capable of walking through the flap at will. This allows you to let it in and out as it's wanted.


It is possible to fit the flap onto the UPVC or glass doors however it's not quite as straightforward as fitting one into a timber external door because UPVC and some glass doors aren't a uniform thickness. This could have a dramatic effect on the way you cut the hole for the flap, and can also affect whether your flap is fitted correctly after it has been installed.

Depending on the model of cat flap you pick, it may be equipped with a mounting kit and template that will tell you exactly where to drill holes for it. If the kit does not come with a template, you can make one on your own. It's important not to push the jigsaw too hard when cutting, so that it doesn't make a larger than necessary hole in your door.

The majority of cat flaps are rectangular or square in shape but there are also some which are circular and these are usually more difficult to place. If you have a round flap, make sure the hole is located in the correct place on your door. In the event that it is not, the cat might not be able to access it, and might be outside all day (or night).

Some cat flaps have locks that allow you to regulate when your cat can enter and leave. They can be extremely useful when you're concerned about your cat going out at night and coming back in due to the darkness, or you're at work all day. Some locks can be used for either access or exit, and others can be locked in both directions. This is helpful for sick or older cats who don't want to venture out in cold weather.