thelondoncatflapcompany.comCat & Dog Flap Fitters

Walthamstow Cat Flap Fitter In Double Glazing

Cat Flap Fitting Services in E17 Walthamstow 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@thelondoncatflapcompany.com

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

Do you have questions ?

Do you have questions ?

Do you have questions that need an answer or require more information on our cat flap /dog flap fitting services that we offer?

We fit into cat flaps/dog flaps into Wood, Glass, Metal & Upvc windows and doors

You may just like to make an appointment for a home visit or then please contact us.

We are always happy to receive your pictures so we can offer an informed price prior to attending your home, so please feel free to use our whats app facility which will be answered if not straigth away normally within the working day.

Contact me
Reliable & professional fitters

Reliable & professional fitters

Fitting a cat flap or dog flap requires specialist tools and expertise. All our London cat flap fitters are fully qualified and trained in the latest tools, equipment and installation techniques as part of our comprehensive services.


Get a free quotation immediately over the telephone or via WhatsApp

What information do you need to accurately quote?

By providing a photo of the glass we can give you the exact price. If you are unable to provide a photo of the glass, then kindly provide some rough dimensions for the example measure edge of glass from left to right and top to bottom, this should give us enough information to provide you with an accurate price which we will confirm once on site and measure 100%.

Installation process

Frequently asked questions

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

By providing a photo of the glass we can give you the exact price. If you are unable to provide a photo of the glass, then kindly provide some rough dimensions. Please measure from edge of glass to edge of glass you can see left to right and top to bottom.

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. 

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.

Do You Fit Into Cavity Walls.

We DO NOT install through cavity walls; we recommend that you hire a professional builder for this type of installation.

Cat flap installation in a brick wall has many pitfalls; it is messy, expensive and time-consuming. there may be pipes or wires we can not see.

If this is your preferred route or only option you have for your home, we strongly advise you to consult with a qualified builder before considering installing a pet door through a wall, always ensure they have relevant building experience, qualifications, insurance and that they can comply with all building regulations. 

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

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 DualScan cat flap   Microchip Sure Flaps   Pet flap installation   Suppliers of cat flaps   Toughened safety glass
Services   Cat Flap Fitter   Cat Flap Fitting   Microchip Cat Flap Fitter   Dog Flaps   Cat Flap   Cat Flap in Glass   Cat Flap In Double Glazing   Cat Flap in UPVC panel   Cat Flap in wooden Door   cat flap fitters   Need a cat flap fitted   Sure Flap Cat Flap   Cat flap installers   cat flap Fitter In Double Glazing   Cat Flap Installation
Postcodes   NW6   E14   NW2   N20   EN3   E9   E18   E5   EN5   NW5   E16   N5   N22   EN4   EN10   EN7   NW1   N12   NW10   NW4   N6   N17   EN1   N16   E15   E17   N11   E2   N9   N8   E1   E11   E6   N3   EN2   E13   NW8   N15   EN6   E7   N4   EN11   NW9   NW11   N1   N10   N7   E12   N18   N2   N19   NW3   E3   N21   E10   E8   EN8   E4   EN9   N13   NW7   N14
Towns   South Tottenham   Chingford Hatch   Arsenal   Edgware Road   Lower Holloway   Haringey   Upper Clapton   Capel Manor   Kingsbury   East Barnet   Pudding Mill Lane   East Finchley   Whitechapel   Blackhorse Road   Millwall   Willesden Junction   Canary Wharf   Mile End Road   Bethnal Green   South Woodford   Waltham Cross   Stonebridge Park   Hailey   Kentish Town   St John's Wood   South Quay   West Hampstead   Shoreditch   The Hyde   Botany Bay   Oakleigh Park   Tottenham   Holloway Road   Finchley Road   Spitalfields   Swiss Cottage   Totteridge and Whetstone   Stepney   Camden   Hackney   New Southgate   Victoria Docks   Bounds Green   Commercial Road   Broadley Common   Neasden   Shoreditch   Hackney Wick   Childs Hill   Leytonstone   Highbury   Golders Hill Park   Manor House   East India Dock Road   Palmers Green   Mornington Crescent   Barnet   Southgate   Colney Hatch   Finsbury Park   Drayton Park   Waltham Abbey   Lower Edmonton   Ridge   Tottenham Hale   Upshire   Plaistow   Finchley Central   Forest Gate   Sewardstone   Winchmore Hill   Fortune Green   All Saints   South Mimms   Island Gardens   Lea Bridge   Cuffley   North Woolwich   Regent's Park   Stonebridge   Highbury and Islington   Totteridge   Dalston Junction   Devons Road   Brondesbury   Seven Sisters   Holloway   Beckton   Old Ford   Brondesbury Park   Church End   Cranley Gardens   Bow   Hackney   Old Oak Common   Stratford Marsh   Stepney Green   Lower Place   Harringay   South Hackney   Homerton   Gilwell Park   Temple Mills   Coldharbour   Kensal Green   Stamford Hill   Pentonville   Dalston   Broxbourne   Rye Park   Monken Hadley   Tower Hamlets   High Barnet   Cheshunt   Chalk Farm   Edmonton   Leyton Marshes   Wapping   Muswell Hill   White Hart Lane   Hornsey Rise   Balls Pond Road   Baker Street   Limehouse   Stoke Newington   Park Royal   Clapton   Aldersbrook   London Arena   Kingsland   Osidge   Stratford   Bowes Park   Camden Town   Oakwood   West Hendon   Canonbury   Flamstead End   Hendon Central   Friern Barnet   Bow Church   Southgate   Willesden Green   Willesden   Northaw   Lower Clapton   Arkley   Haggerston   Camden Lock   Hornsey Vale   Barnsbury   Regents Park   Turnpike Lane   South Hampstead   East Ham   Hendon   West Finchley   Silvertown   Mill Hill East   West Green   Clapton Park   Hadley Wood   Fortis Green   Hackney Marshes   Queen's Park   Highams Park   Primrose Hill   Forty Hill   Fenton Ho.   Lisson Grove   Upper Walthamstow   Kenwood House   Bumble's Green   Goff's Oak   Bow Road   Bromley by Bow   Brent Cross   Leyton   Mile End   Colindale   Euston Square   Hampstead Heath   Hammond Street   Churchgate   Islington   Little Ilford   Nazeing   Cricklewood   North Finchley   Harlesden   Abbey Road   Bowes Park   East Barnet   Noel Park   St Pancras   Snaresbrook   East India   Highgate   Somers Town   Upton   Golders Green   Lower Nazeing   Cyprus   Enfield   Hoddesdon   Enfield Chase   Gospel Oak   Enfield   Woodside Park   Alexandra Palace   Higham Hill   Harringay   Church End   North End   Crouch End   Hornsey   Cubitt Town   Walthamstow Central   Kensal Rise   Victoria Park   North Acton   Highwood Hill   Highgate Wood   Chingford   Mill Hill   Belsize Park   Hornsey Lane   Holloway Road   Upton Park   West Ham   Mudchute   Grange Park   Canning Town   Rotherhithe   Turnford   Great North Way   Upper Edmonton   Newham   Islington   Kilburn   New Barnet   Euston   Maida Vale   Marylebone   Shacklewell   West India Quay   Copthall   Whetstone   Caledonian Road   Archway   Newington Green   Dollis Hill   Holders Hill   Chingford Green   Waltham Forest   Kilburn Park   Spitalbrook   Hampstead Garden Suburb   Upper Holloway   Trent Park   Essex Road   Plashet   Hoxton   Finchley   Poplar   Kensal Rise   Hampstead   Wanstead Park   Cockfosters   Wormley   Wanstead   Westferry   Dartmouth Park   Stroud Green   Muswell Hill   Shadwell   Aldgate East   Walthamstow   Palmers Green   Tufnell Park   Custom House   Alexandra Park   Hale End   Hampstead Garden Suburb   Wrotham Park   Ponders End   Lea Bridge   Stamford Hill   Wood Green   Manor Park   Newington Green   Blackwall   Heron Quays   Potters Bar   Seven Sisters Road
Counties   Greater London   Hertfordshire   Essex
© 2026 thelondoncatflapcompany.com
Chat on WhatsApp