Every cat owner knows their pet's need for freedom and independence. But how do you give your four-legged friend free access to the outside world in a rented apartment without annoying the landlord? There are practical solutions, such as a cat flap in the balcony door, that benefit both cats and their owners.
In this article, you will learn everything about the possibilities, legal aspects and costs of a cat flap in the balcony door of your rented apartment as well as the innovative products from Flappie.
Possibilities of a cat flap in the balcony door

If you want to install a cat flap in the balcony door of your rented apartment, you have several options. A simple solution is to install a conventional cat flap, but this often requires permanent modifications to the door. It is important that the flap is large enough for your cat and that it closes securely to keep unwanted guests out. Alternatively, there are more flexible solutions such as those from LockLatch™, which do not require major modifications and can be adapted to different door and window sizes.
The benefits of such an installation are noticeable for both the cat and the owner. For the cat, it means more freedom and independence , as it can decide for itself when it wants to go outside. For you as the owner, it means less stress, as you don't have to constantly open and close the door. In addition, flexible solutions such as LockLatch™ can be installed quickly and easily , saving time and money. They also offer the option of adjusting the size of the opening, which is particularly useful if your cat's needs change over time.
Legal aspects when installing a cat flap
When installing a cat flap in the balcony door of a rented apartment, it is crucial to observe the legal framework . As a rule, the landlord's consent is required for such changes to the rental property. This is because installing a cat flap is usually considered a structural change that can lead to problems without permission. It is therefore important to obtain the landlord's consent in advance . In some cases, the landlord may impose conditions, such as the removal of the installations when moving out.
To make it easier to talk to your landlord about installing a cat flap, you should be well prepared and take any concerns the landlord may have seriously. Here are a few tips for communication:
- Explain the benefits of a cat flap, such as avoiding the noise and disturbance that can occur when the cat tries to go in and out.
- Show that you are willing to cover the costs of installation and dismantling .
- Offer to enter into a written agreement that records all details and agreements. By taking these steps, you demonstrate responsibility and increase the chance of your landlord's approval.
Installation and costs of a cat flap in the balcony door

Installing a cat flap in your balcony door is easier than you think, especially if you choose a custom-made window pane with a cutout already in place. This way, you can simply replace the original pane if necessary. If you cannot find a suitable window pane, it is advisable to hire an experienced tradesman . They can install the flap professionally and ensure that everything fits perfectly.
The cost of a cat flap varies depending on the model and the installation effort. For a simple plastic flap, you can expect costs starting at 100 Swiss francs , while higher-quality models or those with additional functions can cost up to 400 francs. If you hire a professional to install it, there are additional labor costs , which vary depending on the effort and region. To save costs, you can also search for a tradesman portal that provides local specialists who can make you a suitable offer.
The smart solution: Flappie's intelligent cat flap

Flappie brings the intelligent cat flap into your home that revolutionizes the everyday life of cat owners. Thanks to selective access control and prey detection through camera and AI technology, your home remains free of unwanted guests such as mice or birds. The Flappie app makes it possible to control the cat flap remotely and provides you with push notifications , videos and statistics about your cat's hunting behavior.
The advantages of Flappie are clear:
- More hygiene in your home as no prey animals are brought in.
- Less stress for you and your cat as there is no longer any need to open the door manually.
- Full control over your cat's access, even when you are not at home. Take the chance and visit https://flappie.ch to learn more about Flappie's smart cat flap and order it for your home.
Frequently Asked Questions
Can you install a cat flap in a balcony door?
Yes, it is possible to install a cat flap in the balcony door of a rented apartment. There are both conventional cat flaps, which require a permanent change to the door, and more flexible solutions such as LockLatch™, which do not require major modifications and can be adapted to different door and window sizes.
Is a cat flap a structural change?
Yes, installing a cat flap is generally considered a structural change to the rental property. It is therefore important to obtain the landlord's consent in advance to avoid problems.
How much does it cost to install a cat flap in a patio door?
The cost of a cat flap varies depending on the model and the installation effort. For a simple plastic flap, the cost starts at around 100 Swiss francs. Higher-quality models or those with additional functions can cost up to 400 francs. Added to this are the labor costs of a tradesman if you hire a professional to install it.
How much does a cat flap in the balcony door cost?
A simple cat flap for the balcony door costs from 100 Swiss francs. Models with more functions can cost up to 400 francs. If you have a tradesman do the installation, you will also have to factor in his labor costs, which vary depending on the effort involved and the region.
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