eastlondoncatflapfitter.co.ukEast London Cat Flap Fitter

Upper Walthamstow Dog Flap Fitting In Double Glazing

Cat Flap Fitting Services in E17 Upper Walthamstow East 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: 0207 096 3749
Email Us: sales@eastlondoncatflapfitter.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 0207 096 3749 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

Cat Flap Fitted in UPVC Door
No Hidden Costs
Quality Workmanship
Quality Installation Guaranteed
Free Quote - No Obligation
4-Way Cat Flaps

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
Choosing the right pet flap for your Pet

What our customers say

See the work we've done

See the work we've done

Take a look at some of the work we have completed in your area:

Double Glazed Doors
Single Glazed Windows
Wooden Doors
UPVc Doors
Garage Doors
Fences & Gates

See gallery

Frequently asked questions

  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

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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.

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 can only offer our prices whish are below

A half panel door approx 60cm x 60cm would be £245 - £325 + Vat (£290) (clear glass - supplied and fitted subject to view)

A full height door panel approx 190cm x 60cm would be £325- £495 + Vat (£390) (clear glass - supplied and fitted subject to view)

if it has lead on the glass, a coloured glass or geogian bars, there would be an increase in the prices as above, this is why its best to send a picture and we can confirm the cost 100%

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!

Areas we cover

N6   RM1   N22   N15   E16   N16   N17   N11   N1   E14   EN11   E1   RM13   N13   RM16   RM20   E3   E17   E10   EC2   N4   EN9   RM18   EN10   E7   EN2   E8   EN1   N20   RM15   N8   RM19   E12   RM6   RM4   IG6   EN6   IG1   N7   EN8   E2   E5   RM9   IG10   N2   RM12   IG3   RM2   N9   N5   N19   EN3   N3   E18   IG9   EC3   N18   RM5   EC1   EN4   E13   IG11   EN5   EC4   RM7   IG8   E11   N14   IG7   E6   RM17   E4   N21   N10   RM8   RM3   RM14   E15   RM10   E9   IG2   EC3R   EN7   N12
Hainault   Muswell Hill   Spitalfields   Hampstead Garden Suburb   Upton Park   Smithfield   Fleet Street   Harringay   Waltham Cross   Enfield   Bethnal Green   Victoria Park   Canning Town   West Tilbury   Clapton   Stepney   Wormley   Fenchurch Street   Stapleford Abbotts   Finchley Central   Trent Park   Wapping   Colney Hatch   Clapton Park   St Paul's   Holborn   Mudchute   Lea Bridge   Goswell Road   Upton   Tower of London   Heron Quays   Bank   Redbridge   Shadwell   East Tilbury   Waltham Forest   Bow Church   Havering   Mile End Road   Ponders End   East Ham   Blackhorse Road   Lea Bridge   Finsbury   Cranley Gardens   Holborn Viaduct   Edmonton   South Ockendon   Islington   Forty Hill   Hornchurch   Cockfosters   Shoreditch   West Finchley   West Thurrock   Northaw   Upminster   Highbury and Islington   Barking   Passingford Bridge   Chingford   Hornsey   Wanstead Park   Muswell Hill   Old Ford   Farringdon   Noel Park   Blackfriars   Crouch End   Bowes Park   Coldharbour   Seven Sisters Road   Hornsey Rise   Cyprus   Drayton Park   Barkingside   Billingsgate   Stepney Green   Upper Walthamstow   Leyton Marshes   Friern Barnet   Stratford   East Finchley   West Green   High Beach   Hackney Marshes   Tilbury   Holloway Road   Fairlop Waters   Palmers Green   Custom House   Rotherhithe   South Tottenham   Wrotham Park   Harold Hill   Church End   Chadwell St Mary   Hale End   Goff's Oak   Woodside Park   Haringey   Broadley Common   Flamstead End   Islington   Chigwell   Becontree Heath   Becontree   Southgate   Fortis Green   Holloway   London Arena   North Woolwich   Tottenham   Chingford Hatch   Holloway Road   Bank   Bow Road   Osidge   Wood Green   Chingford Green   Collier Row   Limehouse   Finchley   Purfleet   Loughton   Nazeing   Botany Bay   Bow   All Saints   Hornsey Lane   Barnsbury   Plashet   Palmers Green   Homerton   Dagenham   Tottenham Hale   Cheapside   Winchmore Hill   Barking & Dagenham   Shoreditch   Walthamstow   Rainham   South Hackney   Essex Road   East Barnet   Bowes Park   Broad Street   Potters Bar   Elm Park   Old Street   West Ham   Highgate Wood   Devons Road   London Wall   South Quay   Spitalbrook   Leyton   Haggerston   Hackney   Hackney   Bromley by Bow   Highams Park   Oakwood   Island Gardens   Stamford Hill   Aldgate   Poplar   Canonbury   Archway   Capel Manor   South Woodford   Bumble's Green   High Barnet   Stroud Green   New Southgate   Hailey   Enfield   Grange Hill   New Barnet   Bounds Green   Turnford   Tufnell Park   Arkley   Upshire   Hammond Street   Hackney Wick   Victoria Docks   Monument   Walthamstow Central   Pentonville   Moorgate   Orsett   Blackwall   Aldersbrook   Kenwood House   St Lukes   Millwall   Barbican   Bulphan   Noak Hill   Buckhurst Hill   Dartmouth Park   Newington Green   Barnet   Ilford   East India Dock Road   Whitechapel   North Ockendon   Shoreditch   Waltham Abbey   Navestock   Cubitt Town   Hoddesdon   Kingsland   Gilwell Park   Manor House   Plaistow   Highgate   Woodford   Forest Gate   Finsbury Park   Dalston   Lower Edmonton   North Stifford   Rye Park   Seven Kings   North Finchley   Stapleford Tawney   Wanstead   Hoxton   Cranham   Chigwell Row   Totteridge   Cannon Street   Sewardstone   East India   Manor Park   Leytonstone   Highbury   East Barnet   Creekmouth   Tower Hill   Little Thurrock   Woodford Bridge   Pudding Mill Lane   Broadgate   Arsenal   Commercial Road   Churchgate   Woodford Green   Aldersgate   Upper Edmonton   Totteridge and Whetstone   Mansion House   Stoke Newington   Canary Wharf   Southgate   Lower Nazeing   Cuffley   Shacklewell   Marks Gate   Wennington   Caledonian Road   Lower Holloway   South Hornchurch   Monken Hadley   Whetstone   Ridge   Lower Clapton   Alexandra Palace   Angel   Seven Sisters   Enfield Chase   Grange Park   South Mimms   Balls Pond Road   Turnpike Lane   Gidea Park   Bishopsgate   West India Quay   Westferry   Hornsey Vale   Romford   Stamford Hill   Little Ilford   Upper Clapton   Grays   Lambourne End   Dalston Junction   Newington Green   Higham Hill   Silvertown   Oakleigh Park   Broxbourne   Aldgate East   Hadley Wood   Mile End   Aveley   Stratford Marsh   Cheshunt   Baker Street   Harringay   Clerkenwell   Alexandra Park   Havering-atte-Bower   Temple Mills   Liverpool Street   Ludgate Hill   Harold Wood   Newham   Abridge   Bournebridge   Upper Holloway   Highwood Hill   Tower Hamlets   White Hart Lane   Rush Green   Snaresbrook   Beckton