www.catflapfittersouthlondon.co.ukCatflap Fitter South London

South London Cat Flap In UPVC Door

We Fit Cat Flaps in UPVC Doors – Expert Cat & Dog Flap Installation Service Across South London

Looking to install a cat flap or dog flap in a UPVc door? At Catflap Fitter South London, we specialise in professional cat flap installation for UPVc, composite, and wooden doors throughout the South London. Whether your door has mouldings, recesses, or support braces, our experienced fitters ensure a precise, damage-free installation that keeps your home secure while giving your cat the freedom to come and go.

Why Choose Catflap Fitter South London for Cat Flap Installation?

Expert Installation Without Compromise

Installing a cat flap in a UPVc door requires precision. DIY attempts can easily damage door frames, braces, or mouldings. Our team has the tools and experience to install your cat flap cleanly, preserving both the strength and appearance of your door.

Fast Quotes – No Site Visit Required

Simply send us a few clear photos of your door, and we’ll provide a personalised quote—no need to wait for a site survey. We’ll also recommend the most suitable cat flap options for your specific door type and your pet's needs.

Wide Range of Cat Flaps to Suit Every Home

We stock a selection of standard and high-tech cat flaps, including:

Hassle-Free Installation Day

Once you choose your cat flap, we’ll arrange a convenient date for installation. After fitting, we carry out a full check to ensure everything works smoothly—and that your cat is happy with the results.

Benefits of Installing a Cat Flap in a UPVc Door

  • Convenience: Your cat or Dog can move freely in and out without you needing to open the door.

  • Freedom for Your Pet: Encourages natural behaviour like roaming and outdoor play.

  • Security: With microchip and lockable options, you can control who enters your home.

  • Ideal Location: Doors are often the easiest and most practical place for a cat flap—simpler and less disruptive than walls or windows.

Professional Pet Door Installation Services Across South London

We install pet doors in various surfaces, including:

From standard pet flaps to premium custom solutions, you can choose the size, style, and functionality that suits your home and your cat best.

Get Started Today

Interested in installing a cat flap in a UPVc door? Contact Catflap Fitter South London today to discuss your requirements or get a fast, free quote. Our team is ready to help you choose the perfect cat flap and book your expert installation.

Cat Flaps in Wooden Doors - Cat Flaps in Glass & Double Glazing - Dog Flaps

How to train your cat or dog to use their new pet flap

Some cats will approach a cat flap with curiosity, while others may be a bit more wary. Here is five easy steps to help get your cat using its new cat flap.

Cold every time you have to get up and let the cat in or out - woken in the middle of the night - sound familiar, then its possibly time you fitted a cat flap/dog flap!

Click for step by step proven guide
How to train your cat or dog to use their new pet flap

What our customers say

Choosing the right pet flap for your Pet

Choosing the right pet flap for your Pet

There are a variety of pet flaps available. Our most popular brands include Catmate, Staywelland Sureflap, available in the following types:

4 WAY PET FLAP
2 WAY PET FLAP
Infra-Red Collar Pet Flap
Magnetic Collar Pet Flap
RFID MICROCHIP PET FLAP

See more on the cat flap fitter page

Frequently asked questions

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No - The cat flap/catflap must be glass fitting and circular as it is very expensive to cut a square hole, although not impossible.

Cat flaps come with a kit that includes a paper template that guides you exactly where to drill. With the help of markings, drill a hole in to each corner of the template. Once you have done with drilling the holes, you can get the shape of your cat flap accordingly. These are great for wooden, UPVC/plastic and metal doors, but would recommend a professionaal for anything to do with glass.

No - The glass in the door should already be toughened and you can not cut toughened glass, so we will need to replace the unit (worth hanging on to the double glazed unit we take ut as should you move or need to put this back at a later date will save you some money).

Yes - as cat flaps come in different sizes, models, automatic etc. it is best to talk to us first in order that you can ask all the questions you require answered on the most popular brands. We offer a selection of cat flaps and pet doors, we highly recommend that you take a brief look at the options prior to making a decision. We have added a link from our site to some of the most popular brands.

It varies, but usually takes around 1 hour to install a cat flap in wood, UPVC, metal or a composite door, if it is a cat flap in glass or a double glazed unit, the glass will be toughened safety glass and usually take 3-5 working days to remanufacture and about 30 minuites to install again subject to type and style of door or frame.

We're afraid not as the glass is already toughened when you try to cut it and the glass would break into hundreds of thousands of pieces!

  1. We would arrange to visit your home or property at a convenient time to get an exact measurement of the current double glazed unit in the door, check what pattern you have and offer a like for like or an alternative if the glass is no longer manufactured.
  2. We would then cut 2 new pieces of 4mm float glass (plain or pattern of your choice) to the exact size as measured, cut a hole in both pieces of glass for the cat flap and then have the glass toughened. (What is toughened glass).
  3. Approximately 2-3 day later the cat flap glass will be ready to collect from the toughening plant.
  4. We will then create a sealed doubel glazed unit which will have the hole perfectly placed for the installation of the cat flap.
  5. We will then arrange a convenient time with you to replace your current double glazed unit with the new cat flap ready double glazed sealed unit.
  6. The cat flap is installed once at the property

Just be prepared to be a bit more patient with older cats who may not have used a cat flap before. Use a food reward for your cat and try playing in close by so they get used to being nect to it. Leave the flap open so they can see outside as curiosity will entice them closer until they eventually go through it. 

Areas we cover

4 way cat flap   Cat flap fitters   Cat Flap In Double Glazing   Cat Flap In UPVC Door   Cat Flap in Wooden Door   Cat flap patio door   Cat flap single glass door   Dog flaps   Double glazed door   Gallery   Get in touch   Glass patterns   How to link a Microchip Sure Flap   How to train a cat to use a cat flap   Microchip Sure Flaps   Pet flap installation   Suppliers of cat flaps   Toughened safety glass
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