www.catflapfittersouthlondon.co.ukCatflap Fitter South London

Penge Cat Flap Fitting

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