www.catflapfittersouthlondon.co.ukCatflap Fitter South London

Eynsford Cat Flap In Double Glazing

Cat Flap Fitting Services in DA4 Eynsford South London and surrounding area's

We specialise in professional cat flap installations for a wide range of surfaces, including:

 Cat flaps installation in glass  upvc-door-panels-for-catflaps Glass door cat flap installation

Over 30 Years of Industry Experience

Call Us: 0208 098 2021
Email Us: sales@catflapfittersouthlondon.co.uk

Why Choose Us for Your Cat Flap or Dog Flap Installation?

  • Trusted Experts: Over 30 years of experience in the glass and glazing industry, with 15 years focused on pet door installations.
  • Wide Range of Surfaces: We fit flaps in UPVC, wood, composite, metal, and double-glazed units (including patio and French doors).
  • High-Quality Materials: Replacement UPVC panels are reinforced for durability. Double-glazed units are manufactured in-house for precision and quality.
  • Affordable Pricing: We keep costs low and pass the savings directly to you.
  • Experienced Team: With 6 trusted fitters installing over 200 cat and dog flaps monthly, you’re in safe hands.
  • Customer Satisfaction: Don’t just take our word for it—read our glowing reviews!

Popular Cat and Dog Flaps We Install

We’re experienced in installing a variety of flaps, including:

How We Work: Cat Flap Installation in Double Glazing

If you need a cat flap in a double-glazed unit, we’ll replace the glass with a new custom-made double-glazed unit. This process takes 3–5 working days from measurement to fitting. All units are manufactured at our factory to ensure the highest standards.


Contact us today 0208 098 2021 to discuss your requirements or to get a free, no-obligation quote!

Cat Flaps in Wooden Doors - Cat Flaps in UPVc Panels - 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

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Deptford   Norwood Junction   Bean   Greenhithe   Gloucester Road   Wandsworth Road   Hammersmith   Chelsea   Mortlake   Brixton   Deptford   Penge   Edgware Road   Well Hill   Hounslow Central   Heston   Leaves Green   Upper Halliford   Englefield Green   Woodside   Sydenham   Queens Road   Latimer Road   Holland Park   Blackheath Park   Wimbledon   Beckenham   Kensington & Chelsea   Shorne Ridgeway   Laleham   Wimbledon Park   Wandsworth Common   Victoria   Royal Oak   Chiswick House   East Wickham   Waterloo   Luddesdown   Ladbroke Grove   Grove Park   Singlewell or Ifield   Merton   Grove Park   Richmond upon Thames   West Wickham   Vauxhall   Gravesend   Lower Sydenham   Raynes Park   Clapham North   Chelsfield   Hounslow West   Colliers Wood   Sidcup   Gipsy Hill   St Mary Cray   Newington   Abbey Wood   Richmond   Keston   Belgravia   Barons Court   Littleton   New Cross   Gunnersbury   Marble Hill   Locksbottom   Ashford   Green Park   Stockwell   Mottingham   Hanwell   Chislehurst Caves   Bedford Park   Shorne   Putney Heath   Merton   New Cross Gate   Castlenau   Marylebone   Hyde Park   Lambeth   Southfleet   Hartley   Notting Hill Gate   East Dulwich   Knightsbridge   Kennington   Great West Road   Hythe End   Lane End   Oxford Circus   Well Hall   High Street Kensington   Wilmington   Deptford High Street   Shooter's Hill   Upper Sydenham   Upper Tooting   Chalk   Horniman Museum   Brompton   Herne Hill   Queen's Gate   Eltham   Oval   Fulham   Ranger's House   Darenth   Clapham South   Stockwell   Elmers End   Hyde Park Corner   Dulwich   Isleworth   Wandsworth   Roehampton   South Ealing   South Street   Tulse Hill   Horton Kirby   Blackheath   Denmark Hill   Ladbroke Grove   Stanwell Moor   East Putney   North Kensington   Boston Manor   Ealing   Lavender Hill   Honor Oak   Teddington   Hounslow   Foots Cray   Holland Park   Olympia   Twickenham   Elthorne Park   Bond Street   Feltham   Cromwell Road   East Acton   Hanger Lane   Sutton at Hone 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