catflapfittersouthlondon.co.ukCatflap Fitter South London

Isleworth Cat Flap In Glass

Cat Flap Fitting Services in TW7 Isleworth 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

Cat flap fitter near me | Professional cat flap installation | Cat flap fitting services | Cat flap installation expert | Local cat flap fitter | Cat door installer | Cat flap fitting specialist | Cat flap installation company | Hire cat flap fitter | Cat flap fitting services near me | Cat flap installation cost | Best cat flap fitter | Cat flap fitting for doors | Install cat flap in door | Cat flap fitting and repair | Custom cat flap fitting | Pet door installation services | Cat flap fitting for windows | Cat flap installation

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

4 way cat flap   Cat flap fitters   Cat Flap In Double Glazing   Cat Flap In UPVC Door   Cat Flap in Wooden Door   Cat flap patio door   Cat flap single glass door   Dog flaps   Double glazed door   Gallery   Get in touch   Glass patterns   How to link a Microchip Sure Flap   How to train a cat to use a cat flap   Microchip Sure Flaps   Pet flap installation   Suppliers of cat flaps   Toughened safety glass
Services   Cat Flap Fitter   Cat Flap Installation   Cat Flap Fitting   Catflap Fitter   Cat Flap   Need a cat flap fitted   Cat Flap In Double Glazing   Cat Flap in wooden Door   Cat Flap in UPVC panel   Cat Flap in Glass   Catflap   cat flap fitters   Dog Flaps
Postcodes   DA1   TW5   W2   SE2   TW19   SE13   W14   DA11   SW10   W7   TW9   SE26   DA5   SE21   TW15   SE25   TW16   TW12   SW8   SE24   SE9   TW1   BR6   W9   BR5   TW4   TW14   SW7   TW13   BR7   BR8   SW15   DA3   DA8   SW16   TW20   SE1   SE16   SE11   BR2   SE23   SW5   SE20   SW6   DA13   W5   TW17   W10   DA14   BR3   SE6   SW14   W13   DA2   TW11   SW1A   SW20   SE17   SE28   W11   SE22   SE12   SW9   SE27   SW18   BR1   W8   SW2   SE3   W1M   SE19   SE18   SE7   DA10   SW3   BR4   SE14   SW12   DA9   SW17   W1   SW13   DA15   TW3   W3   SW11   W12   SW1   DA16   TW18   W4   DA17   TW10   W6   TW8   SE8   TW7   SE4   SW19   DA4   DA6   DA12   SE15   SE5   SE10   SW4
Towns   Southwark Cathedral   Kew   St John's   North Ealing   Pimlico   Fulham   Maida Vale   Paddington   Peckham Rye   South Bank   Putney   Leaves Green   New Cross Gate   Great Portland Street   Hammersmith   Maida Hill   Denmark Hill   Shooter's Hill   Lower Sydenham   Isleworth   Gipsy Hill   Shepherds Bush   Hounslow   Lambeth   Ham   Warwick Park   Southfleet   South Street   Docklands   Westminster Abbey   High Street Kensington   Tulse Hill   Northfields   West Hill   New Eltham   Feltham   Acton Green   Cottenham Park   Grove Park   Kensington Gore   Kidbrooke   Luddesdown   Knightsbridge   Vigo Village   Norwood Junction   Harvel   Haydons Road   Coldblow   West Brompton   Bond Street   Hythe End   Clapham   Kingston upon Thames   Goldhawk Road   Horseferry Road   Oxford Circus   Betsham   Earlsfield   Hayes   Waterloo   Greenhithe   Wimbledon   Chelsfield   Thong   Upper Tooting   Bostall Woods   Blackheath Park   Bayswater   Bermondsey   Plumstead   Green Street Green   Barons Court   Egham   Northfleet   Camer   Ashford   Hartley   Upper Halliford   Warwick Avenue   Stone   Knockholt Station   West Dulwich   South Norwood   Wilmington   Southfields   Westbourne Green   Notting Hill Gate   Crystal Palace   Dartford   Brook Green   East Dulwich   Hextable   Belvedere   London Bridge   Sole Street   Tooting Graveney   Green Street Green   Boston Manor   Ealing Broadway   East Sheen   Chiswick House   Loughborough Junction   Lambeth   Littleton   Ham House   Anerley   Buckingham Palace   North Dulwich   Streatham   Deptford High Street   Englefield Green   Ladywell   Longfield   West Kensington   Colliers Wood   Avery Hill   Clapham Junction   Goldhawk Road   Goodge Street   Beckenham   Ranger's House   Staines   Chislehurst   Perry Street   Brentford   Keston   Hither Green   Bromley   Hyde Park   Charlton   Nine Elms   Eden Park   Farnborough   Wimbledon Park   Bexley   Locksbottom   Greenwich   St Paul's Cray   Sands End   Tooting Broadway   West Heath   Kensal Town   Westminster   Bean   Abbey Wood   Kensington & Chelsea   Eltham   Marble Arch   Chiswick High Road   Putney Heath   Twickenham   Deptford   Foots Cray   Shorne Ridgeway   Penge   Chislehurst Caves   Meopham   Bexleyheath   Shorne   Stanwell Moor   Well Hill   East Bedfont   Merton   Wandsworth Town   Wandsworth Common   Erith   North Cray   Bellingham   Green Park   Oxford Street   Istead Rise   Western Avenue   Kensington   East Acton   Shepperton   Lambeth North   Hawley   New Cross   Brixton   Notting Hill   Meopham Green   Shooter's Hill   Horniman Museum   Lewisham   Acton   Deptford   Richmond   Elthorne Park   Royal Oak   Rye Lane   Uxbridge Road   Stockwell   Honor Oak   Bayswater Road   St Mary Cray   Thamesmead   Bushy Park   Ealing Common   Tottenham Court Road   Chiswick Park   Riverside   Lane End   Barnes Bridge   West Ealing   Piccadilly Circus   South Wimbledon   Welling   Hyde Park Corner   Battersea   Kennington   Herne Hill   Bermondsey   Crofton Park   Old Kent Road   Swanley   Canary Wharf   Balham   Wraysbury   Kennington   Park Lane   Fulham Palace Road   Culverstone Green   South Darenth   Lancaster Gate   Summerstown   Marble Hill   Hounslow East   Putney Bridge   Cooper's Hill   Marylebone   Cobham   South Lambeth   West Acton   Fawkham Green   Clapham North   Peckham   Holland Park   Bedford Park   Stockwell   Ealing   Queen's Gate   Clapham Common   Vauxhall Bridge   Norwood   Putney Vale   Hammersmith   Chiswick   Sydenham Hill   Erith Marshes   Wandsworth   Westbourne Grove   North Kensington   Raynes Park   East Putney   Gunnersbury   South Kensington   Eynsford   Osterley Park   Edgware Road   Victoria   Southwark   Great West Road   Ladbroke Grove   Gloucester Road   Upper Sydenham   Surrey Quays   Belgravia   Furzedown   West Norwood   Hammersmith & Fulham   Horton Kirby   Singlewell or Ifield   Chalk   Lambeth   Hatton   Paddington   Castlenau   Mortlake   Woolwich   Ladywell   Lewisham   Chelsea Embankment   West Wickham   Hyde Park   Cromwell Road   Woodside   Queensway   Copse Hill   Catford   Kew Gardens   Brompton Road   Queens Road   Vauxhall   Grove Park   South Ealing   Holland Park   West Kilburn   Cromwell Road   New Barn   Hanworth   Southwark   Westbourne Park   Lee Green   Chelsea   Stanwell   Ladbroke Grove   Cheyne Walk   Sutton at Hone   Chelsea   Sydenham   Westminster Bridge   Heston   Mayfair   Longfield Hill   Sloane Square   Rotherhithe   Latimer Road   Thorpe   Merton   Oval   Downe   Laleham   East Dulwich   Syon House   St James's Park   Thamesmead   Elmers End   Bedford Park   Bushey Mead   Fulham Broadway   Ravenscourt Park   Hanger Lane   Boston Manor   Tooting Bec   Marylebone   City of Westminster   Lee   Gravesend   Wandsworth Road   Westway   Norbury   Soho   Camberwell   Bromley Common   Parsons Green   Mottingham   Teddington   Upper Norwood   Crystal Palace   Stamford Brook   Darenth   Fulham Palace Road   Newington   Rocks Lane   Pratt's Bottom   Crockenhill   Down House   Olympia   Richmond Park   Earl's Court   Regent Street   Lesnes Abbey   Slade Green   Streatham Hill   White City   Lavender Hill   East Wickham   Honor Oak Park   Richmond upon Thames   Acton Town   Vauxhall   Hanwell   Streatham Common   Elephant & Castle   Sidcup   Bickley   Farningham   New Kent Road   Hampton   Brompton   Swanscombe   Tulse Hill   Cranford   Drayton Green   Hounslow West   Blackheath   Dulwich   Barnes   Brompton   Wimbledon Common   Hounslow   Coldharbour Lane   Nunhead   Hounslow Central   Roehampton   Turnham Green   Hook Green   South Acton   Osterley   Warren Street   Walworth   Western Avenue   Crayford   Orpington   Borough   Brockley   Ealing   Sunbury   Well Hall   Forest Hill   Clapham South   New Ash Green
Counties   Surrey   Kent   Greater London   Berkshire
© 2026 catflapfittersouthlondon.co.uk
Chat on WhatsApp