eastlondoncatflapfitter.co.ukEast London Cat Flap Fitter

East London Cat Flap In Double Glazing

Professional Cat Flap & Dog Flap Installation in Double Glazing

Looking to install a cat flap in a double glazed door or window? We are expert cat flap fitters with years of experience fitting cat and dog flaps into glass, including double glazing, single glazed doors, UPVC panels, and more.

As trusted East London Cat Flap Fitter cat flap installers, we supply and fit new cat flaps and dog flaps in a variety of surfaces, including single glazed doors. Whether you're replacing an existing flap or installing one for the first time, we guarantee a clean, secure, and professional finish.

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FAQs: Cat Flap Installation in a Double Glazed Unit, Window or Door

Question: How long does it take to install a cat flap in a single or double glazed door, and what’s the process?

Answer:

Our cat flap installation process is precise and hassle-free. Here’s what you can expect:

  1. Initial Site Visit & Glass Measurement
    We’ll arrange a visit to your home or property at a convenient time. During the visit, we’ll take exact measurements of your current glass panel and assess any patterned or obscure glass types. If your glass style is discontinued, we’ll suggest a suitable alternative.
  2. Glass Cutting & Cat Flap Preparation
    We custom-cut two new panels of 4mm float glass—either plain or with your chosen pattern. We then cut a hole in both layers to fit the specific cat flap or dog flap model you’ve selected. These glass panels are then sent for toughening to meet safety standards.
  3. Glass Toughening & Turnaround Time
    Your toughened cat flap glass is typically ready for collection within 3–5 working days, depending on the glass supplier’s schedule.
  4. Sealed Double Glazed Unit Creation/Manufactruing 
    Once toughened, the glass is sealed into a double glazed unit with the hole precisely positioned for the flap.
  5. Installation Appointment
    We’ll return at a time that suits you to install the new double glazed unit in place of the old one.
  6. Final Cat Flap Installation
    The cat flap (or dog flap) is securely installed on-site into the pre-prepared glass unit. Your pet can start using it immediately!

Why Choose Us for Cat Flap Installation?

  • Specialists in cat flaps for double glazing
  •  Fast turnaround: 3–5 day glass processing
  •  Supply and fit options available
  •  Trusted across East London Cat Flap Fitter and surrounding areas
  •  Friendly, qualified installers with years of experience

If you’re searching for “cat flap fitters near me” or need a quote for installing a cat flap in a single glazed or double glazed door, get in touch today.

Question
Can you install the cat flap in my existing double glazed unit?

Answer: 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).

Question
I already have toughened glass in my door can you install the new catflap in that?

Answer: Im afraid not as the glass is already toughened when you try to cut it, the glass breaks in to hundreds and thousands of prices.

Question
Can I buy any cat flap/catflap?

Answer: No - The cat flap/catflap must be glass fitting and circular as it is very expensive to cut a square hole, although not impossible.

Question
Do You supply cat flaps/catflaps?

Answer: Yes - as cat flaps come in different sizes, models, automatic etc is 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 option prior to making a decision. We have added a link from our site to some of the most popular brands.

Cat Flaps in Wooden Doors - Cat Flaps in UPVc Panels - 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

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