www.catflapfittersouthlondon.co.ukCatflap Fitter South London

Mayfair Cat Flap In Double Glazing

Cat Flap Fitting Services in W1 Mayfair 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   W13   SW10   SW20   DA1   BR3   TW5   SW12   SE11   DA13   TW4   W9   SE20   BR7   TW8   SE12   TW15   TW10   SE10   DA10   SE24   SW19   SE16   W5   SW8   DA2   TW13   W8   SE28   SE26   SE8   SW5   SE1   TW12   W1M   SE6   TW16   TW11   SE17   SE23   SW18   SW4   TW19   SW3   SE13   DA12   SE15   W3   W14   SW17   SE25   SE27   DA14   W12   DA9   DA5   SE9   SW7   W6   SE14   DA15   SE3   SW9   SW13   BR4   SE18   TW1   SW6   SW16   TW17   SW14   SE22   W7   SE5   TW9   DA17   SE4   TW14   SE7   SW2   BR8   SW15   SE19   BR6   DA16   TW3   TW20   SW1A   TW7   BR5   BR2   DA8   TW18   W10   SW1   DA3   DA6   W1   DA4   BR1   SE2   DA11   SW11   SE21   W4   W2   W11
Towns   Westbourne Park   Ealing   Clapham South   Cromwell Road   Cottenham Park   Richmond upon Thames   Swanscombe   Oval   Queens Road   Richmond Park   Meopham   Raynes Park   Bexley   Hammersmith   Kingston upon Thames   West Acton   Honor Oak Park   Southfields   Regent Street   Ealing Broadway   Thamesmead   Elmers End   Heston   Tooting Broadway   Well Hill   Paddington   Woodside   Ealing   Cooper's Hill   Greenhithe   Shepperton   Buckingham Palace   East Putney   Peckham Rye   North Ealing   Merton   Gloucester Road   Wandsworth Road   Furzedown   Marylebone   Wimbledon Park   South Acton   Hounslow   Anerley   Lee   Balham   Shepherds Bush   Shooter's Hill   Chiswick House   Bostall Woods   South Bank   Ravenscourt Park   Clapham North   Westminster Abbey   Hounslow West   North Dulwich   Bermondsey   Penge   Parsons Green   Acton   Oxford Street   Syon House   Greenwich   New Barn   Norwood   Sloane Square   Lower Sydenham   Vauxhall   Piccadilly Circus   Chelsea 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Street Green   Bayswater   Rye Lane   Barnes   Tooting Graveney   Sole Street   Queen's Gate   Kennington   Mortlake   Shorne Ridgeway   Swanley   Kennington   Barnes Bridge   Isleworth   Goldhawk Road   Queensway   Istead Rise   Lewisham   Avery Hill   Hartley   Royal Oak   Putney Heath   Nine Elms   Sidcup   Tooting Bec   Westbourne Green   Sydenham Hill   Notting Hill Gate   West Norwood   South Wimbledon   Oxford Circus   Ashford   Old Kent Road   Hither Green   Kensington   Southwark Cathedral   Drayton Green   Warren Street   Hampton   Fulham Palace Road   Peckham   Mayfair   Goldhawk Road   Green Park   Honor Oak   Bexleyheath   Osterley   West Kensington   South Kensington   London Bridge   Longfield   Great West Road   Putney Vale   Horton Kirby   Marble Arch   New Kent Road   Chiswick High Road   Westminster Bridge   Western Avenue   Chelsea   Perry Street   Woolwich   East Bedfont   White City   Boston Manor   Nunhead   Bedford Park   Cromwell Road   Charlton   Waterloo   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