www.catflapfittersouthlondon.co.ukCatflap Fitter South London

Great Portland Street Cat Flap In Wooden Door

Cat Flap Fitting Services in W1 Great Portland Street 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   DA1   SW15   SE20   SW14   DA6   TW18   BR6   W5   DA11   DA15   SE28   SE6   DA17   SW9   W8   W4   SW11   SW12   SE23   TW11   BR5   SW6   SE12   TW17   DA5   SE19   TW8   BR3   SE26   BR1   SE17   SE5   DA3   SE25   W2   SE9   DA13   BR2   W6   TW19   SE3   SW5   W7   SE8   DA2   SW1   TW1   W14   TW3   SE7   SE24   SW4   W1   DA8   TW10   SW8   W13   BR4   SW17   DA16   SW10   SE10   SW20   SW19   SW2   SW16   TW20   SE14   SW3   SE15   SE1   W9   TW4   SW1A   W11   SE18   DA12   TW7   SE13   SE11   TW14   SE4   SW13   DA10   DA14   SE21   TW13   W1M   TW16   SE2   W12   SE22   SW7   DA9   DA4   TW5   SE16   TW12   TW9   SE27   BR8   SW18   TW15   BR7   W10   W3
Towns   Camer   Longfield   Lavender Hill   Woolwich   Culverstone Green   St Paul's Cray   Riverside   Shorne   Hammersmith   Southfleet   Marble Arch   Shooter's Hill   Orpington   Thorpe   Soho   Kingston upon Thames   Westbourne Park   Hounslow   Leaves Green   Harvel   Coldblow   Erith   Balham   Heston   St James's Park   Horton Kirby   Lesnes Abbey   Lee Green   Regent Street   Ashford   City of Westminster   South Norwood   Welling   Kennington   North Kensington   Notting Hill   East Acton   Teddington   Westbourne Grove   Wimbledon Common   Hammersmith & Fulham   Kensington Gore   Ranger's House   Well Hill   Elephant & Castle   Walworth   Piccadilly Circus   Dulwich   Drayton Green   Bayswater   Eynsford   Fulham   Foots Cray   Lambeth   New Ash Green   Tooting Broadway   Richmond Park   Boston Manor   Sutton at Hone   Hawley   Darenth   Barnes   Oval   South Wimbledon   Nunhead   Park Lane   Norwood Junction   Chiswick   Erith Marshes   Warwick Avenue   Goldhawk Road   West Heath   Knightsbridge   Richmond   Southwark Cathedral   Locksbottom   Hook Green   Oxford Circus   Wandsworth   Hither Green   Roehampton   Latimer Road   Swanley   Crystal Palace   Luddesdown   Colliers Wood   Great Portland Street   Ealing   Stone   Rocks Lane   Warwick Park   Shepherds Bush   Western Avenue   Tooting Bec   London Bridge   Anerley   Eltham   Battersea   Farnborough   Vauxhall Bridge   Streatham   Borough   Furzedown   Peckham Rye   New Kent Road   Southfields   Wandsworth Town   Clapham South   Royal Oak   Stamford Brook   Haydons Road   Cranford   Crayford   Cheyne Walk   North Cray   Horniman Museum   Ealing Broadway   Upper Halliford   Wilmington   Plumstead   Fulham Broadway   Well Hall   St Mary Cray   Lambeth North   Belvedere   Chelsfield   Grove Park   Raynes Park   Stockwell   Denmark Hill   Stanwell Moor   Earlsfield   Camberwell   Catford   Boston Manor   Greenwich   Chiswick Park   Chelsea   Clapham Junction   New Eltham   Betsham   Down House   Perry 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