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Installing A Pet Flap Into Your Window

Sometimes the only place a pet door can be fitted is a window. Usually above the ground and too high for the cat or dog to reach easily, a window can prove a tricky place to install a flap. If this is the case with your window, a step, ramp, purpose made stairs or even a ladder can be used to help the animal access the pet door flap.

Our professional team of installers here at Pet Flaps UK can help by crafting a step up to the pet flap installation. However, for more intricate or involved access it might be beneficial to use a person skilled in these areas such as a wood craftsman or a builder to assist with the access for your pet. All the glass we have is properly toughened to BS EN12150 which ensures that it is robust. Our glazing bears the relevant Kitemark warranty to reflect this standard. Glass of lesser standards can break into lethal shards, so we recommend that you remain cautious of seemingly “cheap” quotes.

Cat flap for windows

Local Cat Flap And Dog Door Installers Across The UK

Does your furry creature need a small exit and entrance in and out of the house? There are numerous places where the pet owner can choose to have a cat flap or dog door installed. Some of these options include patio doors, single doors with glass panels, windows, and more.

We know how important your pet’s safety, security, and comfort is, and we are here to meet your pet flap needs. Our love and care for your pets is unparalleled, and we take great pride as a company about our personal touch and our excellent customer service. We want you to rest easy as your pet or pets have the access they need in and out of the house.

What are the Benefits of Cat Flap Installation?

Windows are a great option for a cat flap installation as they generally have a sill for the cat to use as a step. However, this does mean that you lose the window sill to the cat! If you are happy to lose part of the window opening, a window installation may be the right one for you. We can also match patterns and privacy glass to ensure that you don’t have a mismatched window in your home. Our customers have told us that the main benefits of cat flap installation are:

Helps the cat stay active and independent

Provides mental and physical stimulation

Can control hours of entry and exit using timer

Microchipping option allows your pet safe access in and out while preventing other animals from entering

Can a cat flap be installed into a sash window?

Sash windows are very much like sliding patio doors in that they have two areas of glass that have very little distance between them to accommodate a Pet Flap. We will need to assess If they are suitable for installations, as older styles with putty rather than beading to hold in the panes of glass can often not be suitable.

Cat flap for sash window

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How we work

At Pet Flaps UK, our installation experts can complete installation of dog doors or cat flaps in almost any part of your home, even in aluminium or metal. Many other companies refuse to install these doors because of the difficulty and precision it takes, but our experts are specifically trained to make this process simple and safe.

Get in touch

We can provide a no-obligation free quotation after you provide us with a few simple measurements and a couple of photos. We’ll advise you of our recommendations for the best pet flap for your glass window or door. We offer both 4-way pet flaps and specialty pet flaps, and you can choose what works for your budget and needs.


Initial Site Visit & Evaluation

A site survey will be arranged following a deposit payment (or when a successful finance agreement is in place) as part of our order process. We will arrange for one of our team to visit your home and take the final measurements so the replacement glass unit will be manufactured to be the perfect fit. We may also take photos for reference.


Installation of Pet Flap

When your new glass is ready, our experts will make an appointment to come back to your home to install it. We will perform a full fitting and assessment to ensure it works correctly and that you and your pet are satisfied with our work. Your chosen pet flap may be sent directly to you in preparation for the installation or the installer may bring it with them (we will advise which is applicable to your installation).


Our clients love our pet doors and cat flaps! Here are just a few of the many positive reviews we’ve received from satisfied customers who appreciate the quality, durability, and convenience of our products.