catflapfittersouthlondon.co.ukCatflap Fitter South London

Gunnersbury Cat Flap Fitter

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