www.catflapfittersouthlondon.co.ukCatflap Fitter South London

South London Cat Flap In Wooden Door

Cat Flap Fitting Services in TW20 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   DA4   SE9   SE21   W1   BR3   SE14   TW11   SW7   BR2   DA1   SW1   SE26   SE6   W7   TW9   SE18   SE1   SE12   W3   BR1   TW8   SE8   DA13   W2   SW16   SW20   TW3   SE11   SW19   W8   DA10   DA6   SW6   TW20   SE28   SW12   SE15   DA11   TW17   SE4   SE22   SW11   TW7   TW13   W1M   SW9   TW15   SE7   SW5   W12   SE24   SE17   SE19   TW1   SE2   SE27   SE20   DA5   TW12   SW13   BR5   BR6   DA12   W13   TW18   SW10   SE10   DA9   SE5   DA15   SW8   W6   BR4   TW5   SW3   TW14   TW16   DA14   W14   W5   SW18   DA16   DA17   W9   SW4   SE23   SW14   SE13   DA3   SE16   TW19   TW10   SE3   BR8   SW17   SW2   W10   SW1A   TW4   SE25   SW15   W4   DA2   W11   DA8   BR7
Towns   Littleton   Chelsea Embankment   Wandsworth Town   Ladbroke Grove   Forest Hill   Coldblow   Vauxhall Bridge   Orpington   West Ealing   West Brompton   Kennington   Sunbury   Rocks Lane   Sutton at Hone   Charlton   Shorne Ridgeway   St Paul's Cray   Mottingham   Hyde Park Corner   West Dulwich   Upper Sydenham   Canary Wharf   Brentford   Penge   Clapham North   Blackheath Park   Hanworth   Thong   Wimbledon Park   Chislehurst Caves   Richmond   Blackheath   South Kensington   Bean   Norwood   Tooting Graveney   Brompton   Upper Norwood   Deptford   West Norwood   Ladbroke Grove   Bromley Common   Barons Court   Knockholt Station   Thamesmead   Kidbrooke   Merton   Peckham Rye   Camberwell   Hounslow East   Borough   Edgware Road   Ham House   Great West Road   Fulham Palace Road   Balham   New Kent Road   Marylebone   Clapham   Pratt's Bottom   Southwark   Sloane Square   Cromwell Road   Summerstown   Earlsfield   Betsham   Downe   Singlewell or Ifield   Latimer Road   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Road   Slade Green   Clapham South   Egham   Ladywell   Hither Green   Osterley Park   Hammersmith   Woolwich   New Eltham   Marylebone   Hextable   Greenwich   Bond Street   Denmark Hill   Vigo Village   East Wickham   Meopham   Hyde Park   Leaves Green   Sands End   Bermondsey   Pimlico   Bushey Mead   Kensington & Chelsea   South Norwood   Lavender Hill   Hythe End   Turnham Green   Goldhawk Road   Cobham   Beckenham   Boston Manor   Furzedown   Southwark Cathedral   Shooter's Hill   Ham   Ravenscourt Park   Tottenham Court Road   Putney Vale   Istead Rise   Vauxhall   Chalk   Bermondsey   Ealing   Brixton   Wandsworth Common   Upper Halliford   Deptford   Riverside   Lee Green   West Wickham   Chiswick   Tooting Bec   Ranger's House   Thamesmead   Wandsworth   North Cray   New Cross   Ladywell   Lewisham   St James's Park   Marble Arch   St Mary Cray   Southfleet   Brook Green   Norwood Junction   Westminster Bridge   Nunhead   Mortlake   Bayswater Road   Warwick Park   Stanwell   High Street Kensington   Elthorne Park   Drayton Green   Roehampton   South Wimbledon   Hounslow Central   Foots Cray   Keston   Welling   Hounslow   Fulham Palace Road   Sydenham   Walworth   Elephant & Castle   Hammersmith   Gloucester Road   Farningham   Bexley   New Ash Green   Darenth   Lambeth   Thorpe   Avery Hill   Holland Park   Crystal Palace   Hanger Lane   Honor Oak Park   Hampton   West Hill   Victoria   Fawkham Green   Erith Marshes   Stamford Brook   Gunnersbury   Green Street Green   Grove Park   Green Park   Plumstead   Hanwell   London Bridge   Swanscombe   Regent Street   Eynsford   Erith   Fulham Broadway   Shepherds Bush   Uxbridge Road   Old Kent Road   St John's   Kew Gardens   Belvedere   Camer   West Heath   Well Hill   Maida Vale   Chiswick House   Maida Hill   Woodside   Tulse Hill   Stone   Laleham   Lee   Locksbottom   Westbourne Green   Boston Manor   Soho   East Dulwich   West Kensington   Clapham Junction   Upper Tooting   Streatham Common   Elmers End   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