catflapfittersouthlondon.co.ukCatflap Fitter South London

New Barn Cat Flap In Wooden Door

Cat Flap Fitting Services in DA3 New Barn 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

Postcodes   TW4   DA16   BR4   DA15   SW8   SW15   DA5   SE11   SE28   W2   SE16   W3   DA6   W14   TW5   SE2   TW3   W12   TW1   SE4   SW2   TW13   SE17   W13   W1M   SE12   BR3   BR8   SW1A   SW9   SW7   BR2   W11   SE26   SE1   W4   DA4   BR6   SE23   TW15   SE6   SE25   SW13   DA11   TW9   SE15   TW20   SE18   TW12   SE22   SW6   DA17   DA8   SW10   SW20   DA1   TW10   SW17   SW14   W1   W5   SW16   SE27   DA12   SW3   SE19   SE3   W10   DA10   W6   SE20   SE8   SE13   DA14   W9   W8   SW4   SE24   BR5   TW17   SE21   TW14   SE7   TW16   BR7   SW1   DA3   BR1   DA13   SE14   SE5   TW8   DA9   SW5   SW12   SW18   TW7   SE9   TW11   SW19   SW11   TW19   W7   SE10   TW18   DA2
Towns   Deptford   Boston Manor   West Dulwich   Hounslow East   Hawley   Marylebone   Richmond upon Thames   Westbourne Park   Pratt's Bottom   Acton   Victoria   Mottingham   Syon House   Southfleet   North Cray   Farnborough   Clapham Common   Southfields   Holland Park   Marble Arch   Sloane Square   Greenwich   Lane End   Charlton   Coldblow   Beckenham   North Kensington   Great Portland Street   Marylebone   Sidcup   South Norwood   Wandsworth Town   Upper Sydenham   Belvedere   Blackheath Park   Kensal Town   Brook Green   Lewisham   Goodge Street   Rye Lane   Honor Oak   Wraysbury   Culverstone Green   Raynes Park   Crofton Park   Great West Road   Queens Road   Southwark   Eltham   Cooper's Hill   Darenth   West Hill   Chalk   Ashford   Hammersmith   Norwood   Lambeth   Vigo Village   Fulham Palace Road   Walworth   Oxford Street   Earl's Court   Chelsfield   Gipsy Hill   Canary Wharf   Streatham Hill   Plumstead   Westminster Bridge   Holland Park   Well Hill   South Acton   Roehampton   Forest Hill   Ladywell   Greenhithe   Wilmington   Twickenham   Osterley Park   Acton Town   St John's   Singlewell or Ifield   Crayford   Edgware Road   West Brompton   Lesnes Abbey   Shorne Ridgeway   Hither Green   Wandsworth Road   Royal Oak   East Acton   Latimer Road   Clapham South   Swanscombe   Chiswick   Boston Manor   Uxbridge Road   Upper Norwood   Chiswick Park   Hanworth   Deptford   Castlenau   South Darenth   Knockholt Station   Thamesmead   Laleham   Horseferry Road   Hook Green   Teddington   Northfields   West Acton   Merton   St Mary Cray   Bermondsey   White City   Herne Hill   Southwark Cathedral   Tottenham Court Road   Shorne   Bexley   Putney   Rotherhithe   Queen's Gate   Harvel   Sands End   East Wickham   Luddesdown   Nine Elms   Knightsbridge   Dulwich   South Street   Bean   Notting Hill Gate   Richmond   Thong   Egham   Hammersmith   Englefield Green   Bushy Park   Bedford Park   London Bridge   Putney Heath   Bellingham   West Wickham   Brompton Road   Western Avenue   Chelsea   Meopham   Stockwell   Hythe End   Park Lane   Longfield   New Ash Green   Brixton   Fulham Broadway   Sole Street   Isleworth   Sydenham Hill   Chiswick House   Wimbledon   Brentford   Oval   East Putney   Cheyne Walk   St Paul's Cray   Gloucester Road   New Barn   Shooter's Hill   Thamesmead   Piccadilly Circus   Peckham Rye   Catford   Swanley   Wimbledon Park   Northfleet   East Dulwich   Littleton   Istead Rise   Penge   Slade Green   West Heath   Wandsworth   Shepperton   Colliers Wood   Ham   Gravesend   Wimbledon Common   Clapham Junction   Cottenham Park   Lavender Hill   Hounslow   Kennington   Kensington & Chelsea   Hyde Park   Wandsworth Common   Farningham   Brockley   Green Street Green   Ealing   Crockenhill   High Street Kensington   Westminster   Drayton Green   Tooting Bec   Hounslow West   East Bedfont   Longfield Hill   Eden Park   Furzedown   Stockwell   Elthorne Park   Acton Green   Hammersmith & Fulham   Hounslow Central 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Broadway   Denmark Hill   Osterley   Kingston upon Thames   Westway   Newington   Green Street Green   Tulse Hill   Surrey Quays   Honor Oak Park   Foots Cray   Warwick Avenue   Perry Street   Ladbroke Grove   Thorpe   Stone   Crystal Palace   Ranger's House   Shepherds Bush   Cromwell Road   Bayswater Road   Shooter's Hill   Hatton   Brompton   New Eltham   Borough   Brompton   Lambeth North   Maida Vale   Hyde Park   Clapham   Barons Court   Kidbrooke   Goldhawk Road   Camer   Lee Green   Tulse Hill   Sutton at Hone   Heston   Old Kent Road   Notting Hill   West Ealing   Haydons Road   Lambeth   Ravenscourt Park   Gunnersbury   St James's Park   Hanwell   Hartley   Ealing Broadway   Lower Sydenham   Pimlico   Dartford   Stanwell Moor   Oxford Circus   Chislehurst Caves   Queensway   East Dulwich   Westbourne Grove   Bond Street   Vauxhall   East Sheen   Cranford   Grove Park   Deptford High Street   Hanger Lane   Ladywell   Putney Vale   South Kensington   South Ealing   Olympia   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