eastlondoncatflapfitter.co.ukEast London Cat Flap Fitter

Monument Sure Flap Cat Flap

Cat Flap Fitting Services in EC3 Monument 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

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