Fitting a Cat Flap in a UPVC Door

· 6 min read
Fitting a Cat Flap in a UPVC Door

Allowing your cat to come and go out of the home at its own pace is a good idea to keep it mentally and physically active. A flap can reduce accidents with toilets by making it easier for your cat to leave the home when required.

Take a look at the Door

A cat flap lets your pet to come and go whenever they want without having to open the door for them. This is a great method to keep your pet safe in the house when you are away or at home. It also helps keep unwanted pests out of your.

It's important to measure the door before you buy a cat flap as there are a variety of sizes available. This will ensure that you purchase the correct size to fit into your door made of upvc otherwise, it could be too small or too large for your cat and he will have trouble using it.

Before you take any action but use a ruler to take measurements of the length of the door in several places along its edges. Also, you should measure the door's height in a couple of places. A door that is too high will cause your cat to do an exercise routine every time it wants to use the flap.

If you're not sure how to measure the door, it could be best to ask for assistance from a glazier or someone who does this kind of work often. They'll be able assist you in determining whether not your door is suitable for a cat flap and advise you on the right size of flap you should purchase.

After you've gotten your measurements, the next thing to do is mark the outline of the hole in the door. This will provide you with an outline to cutting the hole and will help you avoid making a mistake that could cost you money in the future!

Make sure that you put the hole in the correct location. For example, if you're installing the cat flap inside the patio door, you must ensure that the hole isn't too close to any hinges, as this can cause leakage and damage to the seal.

It is best to leave the installation of a cat flap on glass doors to a professional glazier. It may be difficult to fit a cat-flap into an existing pane. You might also discover that it cracks and loses its weatherproof seal.

Measure the Cat

A cat flap lets your pet come and go whenever they wish without having to leave him home alone. It can also stop draughts entering your home, which isn't beneficial for your cat or you.

If you own a uPVC door or composite door, it could be difficult to install a cat flap. These types of doors are often made with different materials than traditional wooden or uPVC doors and the procedure for installing them is quite different too. Make sure to inquire with the manufacturer to see if it is compatible before you install a cat flap on your uPVC composite or uPVC door. Changes to the door could invalidate warranties.



These doors are typically designed to last and are tough and have insulation. This makes them more resistant to the elements of weather than other doors, however they can be difficult to install an animal flap. If you're uncertain about whether your uPVC or composite door can accommodate a cat flap, check with a professional joiner before beginning.

You'll have to measure their height to ensure they fit through the door. It's easiest to measure their height when they're calm or asleep, so they don't sway around. Once you've established their height, take a measurement of the distance between their stomach and the floor to determine where the bottom of the cat flap should be. This position is marked on the door.

If your uPVC or composite door is made of metal (either steel or aluminium) you'll need to be very careful when cutting it with power tools. The process of drilling into metal could cause cracks, particularly if the area is toughened glass. It is recommended to hire an expert glass installer when putting in a cat flap in the pane. This will prevent the glass from breaking or becoming brittle. A glazier can also supply you with a circular hole to use for the flap for your cat. This is less likely to crack and is safer for your cat to use.

Cut the Hole

If it doesn't then you can create one yourself using a sheet of thin paper (tracing paper is the best choice). If it doesn't, make your own using a thin piece of paper (tracing papers are great). After the shape has been penciled in on the door, you can utilize your spirit level to ensure that it is horizontal. This will ensure that the cat flap sits properly in the door, and it will not slide open or close.

Next, use your jigsaw and cut out the shape that has been drawn on the door. Use a blade that is specifically designed for uPVC doors. It is usually marked with this information. If not you can ask the staff at the DIY store for assistance. Once you have the hole made, place the flap section against it and then push it out to ensure that the flap's action is smooth. If it becomes stuck at any point, use a filer or a rasp to correct this.

It is also important to ensure whether there are any electric gas or cable lines within the door you'll be cutting into since they could be damaged by your jigsaw. You should also be aware of any handles or other fixtures that are in the door, which will need to be removed to accommodate the cat flap. Be cautious not to cause damage to these items during the process.

The majority of people who install the cat flap themselves have an ordinary solid uPVC door and so will not have to worry about any of these issues. But, if your door is constructed of timber or has decorative panels that cannot be removed, this could increase the difficulty of the job.

For these kinds of jobs, it is recommended to seek out expert advice from a cat-flap fitter. It is essential to perform them correctly to avoid problems in the future. Making the wrong choice could lead to the door being damaged, which could make it impossible to honor the warranty.

Install  cat flap cost Repair My Windows And Doors

After you've cut your hole, put the flap to see whether it opens and fits. If you spot any areas that catch or stick to the door, smooth them out using a hand file or sandpaper until it fits correctly and opens with no issues. Make sure that the flap is in a flush position with the door.

If your kit doesn't have a template, you can make use of thin paper such as tracing or Acetate. Lay the paper against the door and mark the area where you'll will need to place the flap (this will be your cutting guide). Make four screw holes at every corner of the flap using the pencil marks you traced on the door. These are the screw holes you'll need to use to fix the flap in place.

The majority of uPVC doors are sturdy and easy to cut. However, if the door is made of GRP or a composite, it can be more challenging. If you're unfamiliar with this, it might be wise to get a professional to do the work for you. They should also be able to provide you with advice on whether or not your particular door is suitable for installation of a cat flap.

You can fit an opening for a cat flap in composite doors. However, it's essential to check with the manufacturers or a professional joiner first since any modifications to these types of doors may invalidate the warranty. If you decide to tackle the work yourself, bear in mind that it could be a messy job and could be dangerous.

You'll need to use an instrument like a grinder or a saw to cut through composite doors more than only the GRP. Be aware that this could be extremely dangerous work and you'll have to take extreme care not to harm the door or yourself as it's extremely fragile. It's also worth noting that cutting holes into any type of door glass is a lot more difficult than making the same change in a uPVC or solid wood door.