www.catflapfittersouthlondon.co.ukCatflap Fitter South London

Farnborough Cat Flap In Double Glazing

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