catflapfittersouthlondon.co.ukCatflap Fitter South London

Thorpe Cat Flap Fitters

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