Fitting a Cat Flap

Getting a cat flap fitted into your home could be a huge step for any pet owner. If your cat is old and requires additional security, or you have new kittens who require a vet check there are plenty of options out there to choose from.
It can be difficult for people who aren't experts in installing the cat flap, but with right instructions it's easy. Preparation, planning and precision are the key to success.
Select the Right Door or Windows
There's a wide selection of cat flaps that are available, some with locks (which can be used to stop your pet from leaving or entering) and others with high-tech features such as 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 generally best to situate the cat flap inside a window or door that opens out into an area that is protected from the garden so that your cat will feel secure going into and out of the house. If possible this will also allow them a way back should they be pursued by a different cat or by humans who are intent on harming them.
It is possible to install a cat-flap in a uPVC or composite door, but it's not the same as fitting one on a wooden door. This is due to the fact that uPVC and composite doors come in various thicknesses, which affect the way holes are cut and the material you're fixing it to.
If you're installing the flap on the glass of a door, it's recommended that you find a glazier who is experienced in this kind of work to avoid costly errors. If you're fitting the flap to a wooden door, start by introducing your cat to it before you fit it so that they can get used to its size and shape and explore it from all angles.
Measure Your Cat's Belly
In order to put in the right cat flap that's suitable for your cat, you'll need to measure your cat. This will allow you to ensure that your cat flap is placed at the correct height on the door or window, and also that it's large enough for him to enter and leave easily.
Place your pet on its back and gently run your fingers across their belly. Look for any squishy fat pads which might be visible around their lower back, face and legs. The padding provides your pet protection and allows them to move more easily, especially when performing the acrobatics cats are famous for.
You can also use the weight of your pet to determine how large an opening you need. If your cat weighs up to 5Kg, for example the suggested cat flap opening size is 14x12cm.
Make sure you measure your door or window
This type of cat flap, as its name suggests is made to be fitted into a door. It allows your pet to enter and exit at its convenience. They are typically made of plastic or aluminium and simply are placed in the middle of the door with the possibility of a swinging door that is opened by pushing lightly on either side. There are locking versions of these flaps that offer added security so your cat can't simply enter the door from the outside.
Cat flaps are also often employed in windows. They are able to be easily installed, but they have to be set at a height where cats and dogs find it difficult to get them. If the window is too high to use a cat flap, steps, ramps or purpose built stairs can be used to aid the animal in accessing it.
It is possible to put an egress into brick walls, however it is not recommended for those who are not experienced in masonry. This could weaken the wall's structure. Before you begin, it's important to ensure that the wall is free of cables and pipes. If they are, an opening must be created for them and this is something that you should always seek expert advice on. Wearing safety goggles or a dust mask can allow you to avoid breathing in the sawdust that is created when cutting through your walls.
Select the Right Cat Flap
There are numerous cat flaps available and all of them offer various features. Some come with security options like magnetic locks or microchip recognition that prevent unauthorized entry and also prevent your pet from allowing pets or friends into the home. Some seals are weatherproof and insulation to keep out the elements and keep out drafts.
There are different sizes that are available based on the size and breed of your pet. Certain cat flaps are rectangular while others are circular or square. The type of cat flap you select will depend on the dimensions of the opening as well as the kind of door or window you're installing it to.
The last thing to do is think about the opening mechanism the cat flap will employ. The most affordable option is a simple swing-out aluminium or plastic door. It won't prevent other animals and cats from entering however, and you could let in draughts.
It's time to install your cat flap. Determine the belly height of the door using a ruler. Make cat flap fitting of a spirit-level to make sure the line isn't too low and is in line with the door. Use your spirit level to draw a template of the flap for cats. Then, you can use your jigsaw to cut out the outline of the door. When you're satisfied with the results sand down the edges and drill through the pencil lines to make holes for the screws.
Prepare the Tools
As with any DIY jobs, it's always best to have the right tools to complete the task. The most essential things you'll need are the cat flap, a tape measure and an excellent pencil and a spirit level a file, drill and a jigsaw (depending on the windows or doors).
If you're installing in a composite door, check with the manufacturer prior to making any changes, since this could affect the warranty or damage the weathertight seal. In this scenario, you'll probably have to install a new pane of toughened glass instead.
You'll need the jigsaw to cut your cat flap on a wooden or uPVC door. Follow the directions that are provided by the manufacturer. If you can, use a template to help you determine the size of hole you'll need to cut.
After you've cut the hole, you will have to sand off the edges of the opening. This will prevent the possibility of water damage and rust. Finally, you should apply any sealant you require to the rear of the cat flap and to the holes in the door or window to keep out the elements of wind and rain. After the sealant has dried, you can install your new cat flap!
Install the Flap
Installing a flap allows your cat to come and go whenever it wants. The majority of people can install the flap on their own. However when you plan to install it in glass or uPVC type door, you may require an expert.
Start by looking at the instructions provided with the flap to locate the template drawing. This will give you an idea of the location where holes need to be made for the flap on the door. Then, mark the areas that you'll need to drill with pencil.
After you have mapped out the door's opening then use a jigsaw cut out the shape of the cat flap. It is a relatively simple task, but you'll need to be comfortable using a Jigsaw. If you are worried about doing this yourself, there are plenty of businesses that can handle this for you at a low cost.
Then, you can screw the inside part to the hole of your door. It might be necessary to seal the flap prior to you do this, in order to keep it weatherproof and watertight. The outer section of your cat flap could be placed on top of the bolts, and then tacked together. It is recommended that you test the flap using your cat to make sure that it works correctly and that they are able to get in and out of it.