Every cat owner knows their furry friend's need for freedom and independence. But installing a cat flap can seem intimidating at first - where do you start, what do you need to consider?
Fortunately, installing a cat flap is easier than you think and brings many benefits for you and your cat.
In this guide, you'll learn everything you need to know about installing a cat flap - from choosing the right flap to installation and the legal aspects in a rented apartment.
Choosing the right cat flap: What to look for?

Choosing the right cat flap is crucial to providing your cat with freedom and security. There are a variety of models on the market, but not every cat flap is suitable for every need. It is important to pay attention to size, safety features and installation options so that the flap is optimal for both your cat and your home.
When choosing, you should especially consider the size of the flap. It must be large enough for your cat to fit through comfortably, but not so large that it becomes a safety hazard. Other decisive criteria are windproofness and the noise when opening and closing the flap, especially if you live in a windy area or have a rather timid cat.
Last but not least, the type of access control plays an important role. While simple, mechanical cat flaps are inexpensive, they do not offer any way to prevent unfamiliar animals from entering. Modern solutions such as microchip cat flaps offer an effective way of allowing only your cat access while keeping unwanted guests out.
Different types of cat flaps and their characteristics
Cat flaps come in a variety of designs, which differ mainly in how they work and in their safety features. The classic free-running door is the simplest form of cat flap and works like a swing door. It is inexpensive and easy to install, but does not offer access control.
For increased security, there are models with different locking mechanisms, such as 2- or 4-way locking, and those based on technology. Cat flaps with a microchip or magnetic collar offer selective access control by only allowing your cat to enter and exit. These technologies effectively prevent strange animals from entering your home.
Microchip Cat Flaps: Understanding Technology
Microchip cat flaps use RFID technology to read the chip implanted in the animal, allowing only your cat access. This system consists of a transponder in the chip and a reader in the cat flap. The flap opens automatically when your cat comes near and remains closed to all other animals.
The big advantage of a microchip cat flap is security, as it prevents unfamiliar animals from gaining access. In addition, some models can be programmed for multiple cats, meaning each cat can have individual access rights. When purchasing, you should check for compatibility with your cat's chip and the possibility of programming for multiple animals.
Installation instructions: Installing a cat flap step by step

Once you have chosen the right cat flap and determined the ideal place for installation, it is now time for the actual installation. First of all, you should make sure that you have all the necessary tools and materials to hand, as described in the checklist. This includes a jigsaw for the cut-out in the door and a screwdriver for installation.
The next step is to mark the cutout size on the door. To do this, measure the size of the cat flap and transfer this measurement to the door. Make sure that the position of the flap is comfortable for your cat and does not damage any structural parts of the door. It is helpful to mark the corners of the future cutout with a pen.
- Now the actual installation begins : Use the jigsaw to carefully saw out the hole for the cat flap along the marked lines. - It is important that you work as precisely as possible to achieve a clean result. - After sawing, you should smooth the edges with fine sandpaper to avoid the risk of injury to your cat.
Finally, insert the cat flap into the prepared hole and check that it swings freely and that there are no obstacles blocking the passage. Then fix the flap firmly to the door using the screws provided. Make sure that the cat flap is flush with the door to avoid drafts. With these steps, you have successfully installed a cat flap and given your cat more freedom.
Placement of the cat flap: tips for the ideal location
Choosing the right location for the cat flap is crucial to providing safety and comfort for your cat. It is important to choose a location that is easily accessible while also keeping your cat safe from danger. Make sure the flap is not installed near noisy appliances or areas that may frighten your cat.
Also consider your cat's habits. If your cat prefers to use certain areas of the house or garden, placing the cat flap near those areas can help them get used to their new freedom more quickly. Remember that each cat is different and it may take a while for them to fully accept the cat flap.
Installing a cat flap in glass: What should you consider?
Installing a cat flap in glass, such as glass doors or windows, is a particular challenge. It is extremely important to consult a specialist , as glass is a sensitive material and can easily be damaged if handled improperly. It should also be noted that not all types of glass are suitable for installing a cat flap.
When fitting into glass, special tools and skills are required. - Before installing , make sure the cat flap is designed to be fitted into glass. - Consider the type of glazing on your glass door or window as this may affect the choice of cat flap and installation technique. A professional glazier can help you find the best solution for your situation and ensure the installation is successful and safe.
Safety around the cat flap: Important considerations
When installing a cat flap, safety aspects should not be underestimated. An incorrectly installed flap can not only lead to an increased risk of burglary, but also jeopardize insurance coverage. It is therefore important to ensure that it is installed correctly and that the flap does not allow unwanted access.
It is also crucial to choose a cat flap that only allows your cat access. Modern microchip cat flaps can offer an effective solution by preventing access to strange animals. This not only protects against strange cats, but also against other small animals that could otherwise easily get into the house.
Costs of Cat Flap Installation: An Overview
The cost of installing a cat flap can vary depending on several factors such as the model of the flap and the effort required for installation. On average, the price of buying a cat flap is between 60 and 250 euros, while the installation costs can be between 100 and 400 euros.
It is advisable to get quotes from different suppliers in advance to get a better idea of the total cost. Compare the offers carefully to make sure you do not overpay for the installation of your cat flap. You should pay attention not only to the price but also to the quality of the work.
Cat flap in a rented apartment: What is allowed?
When installing a cat flap in a rented property, you must consider a few important legal aspects. Without the landlord's consent, you may not make any structural changes that permanently alter the rental property. A cat flap definitely falls under such structural changes. It is therefore crucial to speak to your landlord and obtain his permission before installing it.
Once you have received approval from your landlord, there are a few things you should keep in mind:
- Written agreement : Record the landlord's consent in writing to avoid any misunderstandings later.
- Proper installation : Make sure the cat flap is installed correctly to avoid damage and ensure safety.
- Undoing : Discuss whether and how the structural changes should be undone when moving out.
Getting your cat used to the cat flap: Helpful tips

A new cat flap can be strange and perhaps even frightening for your cat at first. That's why it's important that you get your cat used to the cat flap slowly and with a lot of patience. A good start is to keep the flap open for a few days so that your cat can explore it in peace without feeling threatened by going through. Reward your cat with treats or their favorite toy when they approach the cat flap or even go through it to create positive associations.
Visualization and arousing curiosity are also effective methods to get your cat used to the cat flap. You can:
- Lure with a toy or treat on one side of the flap while you are on the other side.
- Gently guide your cat through the flap if she hesitates, but avoid forcing her.
- Integrate the cat flap into daily play to show your cat that it is safe and fun.
With these tips and a little patience, your cat will soon learn to use its new cat flap and enjoy the freedom it offers.
Alternatives to the classic cat flap: Innovative solutions
If you are looking for an alternative to the classic cat flap, modern technologies offer exciting solutions. One innovative option is the microchip cat flap , which only allows your cat access by reading the chip implanted in the animal. This prevents strange animals from entering your home. Another notable innovation is the mouth scanning technology , which detects whether your cat is bringing prey and denies access accordingly.
These technical innovations not only offer more safety, but also increased comfort for you and your cat. The advantages include:
- Set up schedules that determine when your cat is allowed to enter or leave the house.
- Connect with apps to monitor your cat's activities even when you're not at home.
- Notifications about the use of the cat flap. Such solutions are an investment in the safety and well-being of your pet.
Optimize your cat flap installation with Flappie
Installing a cat flap with Flappie offers you revolutionary features that make life with your cat easier. Thanks to selective access control and prey detection by AI-controlled cameras, you can be sure that only your cat comes in and out - and without any unwanted "gifts". These intelligent features not only ensure a prey-free home, but also a stress-free everyday life for you and your cat.
Take the opportunity and visit https://flappie.ch to learn more about Flappie 's intelligent cat flaps. The advantages are obvious:
- Easy installation : Flappie is designed to be straightforward to install.
- Remote control : With the Flappie app you have full control over the cat flap, no matter where you are.
- Data protection : Your data remains safe because recognition takes place locally on the device.
Take the next step and keep your home clean and safe with Flappie .
Frequently Asked Questions
How much does it cost to have a cat flap installed?
The cost of installing a cat flap can vary depending on several factors such as the model of the flap and the complexity of the installation. On average, the price of buying a cat flap is between 60 and 250 euros, while the installation costs can range from 100 to 400 euros. It is advisable to obtain cost estimates from various suppliers in advance in order to be able to better estimate the total cost.
How can I install a cat flap?
First, make sure you have all the necessary tools and materials to hand. Then, mark the cut-out size on the door and cut out the hole with a jigsaw. Smooth the edges with fine sandpaper and insert the cat flap. Check that it swings freely and then secure it with the screws provided. Make sure that the cat flap is flush with the door to avoid draughts.
Where can you install a cat flap?
A cat flap can be installed in doors, walls and even glass, such as glass doors or windows. When installing in glass, it is important to consult a professional as not all types of glass are suitable and special tools may be required. Choose a location that is easily accessible and will keep your cat out of harm's way.
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