Expert Cat Flap Installers in London
Same Day Installation Service
Looking for professional cat flap fitters in London? Our experienced and fully qualified team of local glaziers and pet door specialists offer reliable same-day service for all cat flap and dog flap installations. We provide a free survey and no-obligation estimate, with a fixed price for your installation. All of our work is fully guaranteed, ensuring peace of mind and long-lasting results.
Fitting a cat flap or dog flap often requires specialised tools and expertise, which is why we recommend our reliable and professional glaziers for your pet flap installation in London.

We specialize in the installation of dog and cat flaps across London. Our team ensures a quick, efficient, and hassle-free installation at a time that suits you. Plus, we offer a no call-out fee policy.
Can you fit a cat flap in double glazing in London?
Yes, we are specialists in installing pet flaps in double glazing. Our expert team ensures the installation is completed with precision, sealing the flap correctly to prevent any potential condensation problems. For your peace of mind, we offer a 5-year guarantee on all our installations.

We can install pet flaps in:
Contact us today for a professional, reliable installation service in London

At Cat Flaps London, we specialise in supplying and fitting high-quality cat flaps for double-glazed patio doors and side panels. Whether you need a new cat flap or a replacement unit, our professional installation process ensures safety, durability, and convenience.

Step 1: On-Site Measurement
We arrange a convenient time to visit your property and take precise measurements of your current glass patio door. This ensures the new unit fits perfectly.
Step 2: Custom Glass Preparation
We cut two new pieces of 4mm float glass, available in plain or patterned designs, to match your current door. A circular hole is precision-cut for the cat flap, and the glass is toughened for safety.
Step 3: Toughening Process
The glass is sent to a specialised toughening plant. This process takes approximately 2-3 days to ensure the glass is compliant with safety standards.
Step 4: Double-Glazed Unit Creation
The toughened glass is crafted into a sealed double-glazed unit, featuring the perfectly positioned hole for the cat flap installation.
Step 5: Final Installation
We coordinate a time to replace your existing glass with the new double-glazed unit. Once installed, the cat flap is securely fitted on-site.
Q: Can you install a cat flap in my existing double-glazed patio door?
A: Unfortunately, no. Double-glazed units in patio doors are typically made with toughened or laminated safety glass, which cannot be cut without shattering. A replacement unit is required. We recommend storing the old unit for potential future use to save costs.
Q: I already have toughened glass in my patio door. Can you cut it to install a cat flap?
A: No, cutting toughened glass is not possible as it will shatter into small fragments. A new custom glass unit will be needed.
Q: Can I use any cat flap for my patio door?
A: No, the cat flap must be designed specifically for glass installations and should be circular. While square holes are possible, they are significantly more expensive to cut.
Q: Do you supply cat flaps?
A: Yes, we offer a wide selection of cat flaps, including manual, automatic, and microchip-operated models. We recommend consulting with us to choose the right cat flap for your needs. Visit our site for links to trusted cat flap brands.
Contact us today to schedule a consultation or to learn more about our services!
Cat Flaps in Wooden Doors - Cat Flaps in UPVc Panels - Cat Flaps in Glass & Double Glazing - Dog Flaps
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).
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.
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!
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.
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
Dog flap fitter near me | Professional Dog flap installation | Dog flap fitting services | Dog flap installation expert | Local Dog flap fitter | Dog door installer | Dog flap fitting specialist | Dog flap installation company | Hire Dog flap fitter | Dog flap fitting services near me | Dog flap installation cost | Best Dog flap fitter | Dog flap fitting for doors | Install Dog flap in door | Dog flap fitting and repair | Custom Dog flap fitting | Pet door installation services | Dog flap fitting for windows | Dog flap installation
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.
Services
cat flap fitters Cat Flap Fitting Cat Flap Fitter Cat Flap cat flap Fitter In Double Glazing Cat Flap In Double Glazing Cat Flap in Glass Cat Flap in UPVC panel Cat Flap in wooden Door Cat Flap Installation Dog Flaps Need a cat flap fitted Microchip Cat Flap Fitter Cat flap installers Catflap Catflap FitterPostcodes
SE22 RM16 NW6 E9 SE13 SE4 N21 RM7 RM8 RM4 W7 DA4 SE5 W1 SE23 W14 DA12 WC2 SE15 SW6 EC3 N12 N11 DA10 N7 W5 RM18 NW7 SW18 SE11 SW14 SW1A EN11 EN5 SE21 SE17 SE6 WD1 SW3 N1 WD6 EN6 WD7 SE19 N2 E11 SW12 RM1 RM15 EC2 SW15 E16 E5 EC3R N9 DA6 SE18 E15 SE27 SE16 IG9 N6 RM19 SE7 SW4 RM14 RM6 E10 E1 N18 SE26 IG10 SW1 N20 DA13 E7 RM20 RM3 W13 WD4 W4 EN7 E4 IG7 E18 RM10 NW10 EC1 E14 E2 W12 DA11 SE1 W11 SW9 W8 SW8 N3 SE3 NW3 SW16 WD5 SW11 IG1 RM12 WC1 SW2 SW7 E12 RM9 E6 DA1 E3 E8 DA2 W9 N4 N17 EC4 SE14 NW9 EN8 W3 EN4 RM5 RM13 DA8 N14 SW10 SE12 W6 EN3 DA17 EN10 N15 DA16 WD2 NW11 WD3 W1M DA15 N5 SW20 SE25 SW5 DA3 SE28 W2 IG3 NW5 RM17 NW4 NW1 IG6 SW17 IG8 E17 N13 NW2 N19 SE2 SE8 N16 IG11 IG2 EN2 SE20 E13 N10 SE24 N22 SE10 RM2 DA9 SW13 EN1 W10 EN9 DA14 SE9 DA5 NW8 N8 SW19Towns
Sewardstone Vauxhall Canning Town Warwick Park Western Avenue Northaw Highwood Hill Hither Green Elstree Dalston Higham Hill Rotherhithe North Acton Erith Marshes Oakleigh Park Earlsfield Eltham South Hackney Swiss Cottage Shacklewell City of Westminster Hackney Marshes Stonebridge Leyton Kingsland Hanger Lane Honor Oak Tooting Graveney Brixton Upton Park Kensal Green Bexleyheath Trent Park Cranley Gardens Bedford Park Grove Park Vauxhall Bridge Park Lane Betsham West Hyde Woodford Bridge Raynes Park Totteridge East Putney Clapham Junction Oxford Street Kennington Gospel Oak Arkley Old Kent Road Southwark Lower Sydenham Erith Ladywell Highgate Crayford North Kensington Brook Green Shoreditch Piccadilly Circus Riverside Broadgate Eynsford Wimbledon Common Brompton Road Bromley by Bow Chigwell Manor Park Goldhawk Road Farningham Euston Square Somers Town Victoria Docks Wilmington Cockfosters Poplar Mile End Road Cricklewood New Barn Leicester Square East India Palmers Green Lisson Grove Bexley East Dulwich Hanwell Hackney Tilbury Highgate Wood Hyde Park Merton Notting Hill Gate Tower of London Highams Park Sydenham Hill Holland Park Harringay South Street Shoreditch Gunnersbury Nunhead West Green Southfleet Heronsgate Becontree Heath White Hart Lane Denmark Hill Copthall Cannon Street Chalk Farm Hammond Street West Acton Hammersmith & Fulham Gipsy Hill Winchmore Hill Norwood Junction Bowes Park Kensington Gore Watford Meopham Green Charing Cross Woodford Vauxhall West Norwood West Kilburn St Paul's Barnet Huntonbridge Streatham Hill Bushey Heath Blackheath Kensal Town Drayton Green Clapham South North Woolwich Horton Kirby London Bridge Strand Plaistow Hammersmith Earl's Court Stratford Pentonville Avery Hill Stroud Green Coldharbour Lane Slade Green Battersea Lower Place Brent Cross Chelsea Leytonstone Chancery Lane Woodside Park Kensington Blackheath Park East Sheen Covent Garden Wanstead Fortis Green Bowes Park New Cross Regent Street Barkingside Bounds Green Highbury Gravesend Aldersgate Barking Fulham Broadway South Hampstead Deptford Streatham Merry Hill Cottenham Park Totteridge and Whetstone Churchgate Stratford Marsh Shorne Fulham Palace Road Wimbledon Park New Barnet Noel Park Forest Hill Borehamwood Chandler's Cross North Ockendon Tulse Hill Loughton Lower Holloway Swanscombe North Finchley Oval Wrotham Park Passingford Bridge Haringey Heron Quays Colindale Purfleet Vigo Village Lower Clapton Newington Green Aldwych Ladywell Bermondsey Edmonton Tottenham Court Road Westminster Bridge Elephant & Castle Norwood Holders Hill Harvel Chalk Newington Furzedown Capel Manor Ponders End Lewisham Southwark Clapham Common Brondesbury London Arena East Dulwich Putney Heath Stockwell Putney Tooting Bec Bermondsey Old Street Blackfriars Islington Hook Green Acton Lesnes Abbey Little Thurrock Barons Court East India Dock Road Southgate Upshire London Wall Crystal Palace Stonebridge Park Kilburn Park Seven Sisters Road Creekmouth West Hampstead Wandsworth Town Island Gardens Navestock High Beach Mortlake Abbey Road Old Oak Common Nazeing Hornsey Lane Belsize Park Westminster Abbey Commercial Road Stepney Green New Cross Gate Kenwood House Bean Finchley Seven Kings Snaresbrook Fenton Ho. Dulwich Trafalgar Square Green Street Green Victoria Hampstead Camer Green Street Stockwell Crouch End Sydenham New Southgate Chorleywood Chiswick Western Avenue Nine Elms Cubitt Town Tottenham Bulphan Hadley Wood South Norwood Ludgate Hill Potters Bar Lambourne End Camden Lock South Mimms Bank Friern Barnet Old Ford Blackwall Rotherhithe Bishopsgate Palmers Green Fawkham Green Bow Church Chadwell St Mary Cheshunt Oxford Circus West Ham Wanstead Park Plumstead West Hendon Chelsea Queensway Woolwich Haggerston Wandsworth Common Boston Manor Tower Hill Clapton Park Harold Wood Ealing Forest Gate Willesden Green Ealing Upper Tooting Bellingham Abbots Langley Camden Canary Wharf Ealing Broadway Bournebridge Finsbury Park Batchworth Heath Dartford Custom House Holland Park Kidbrooke Kings Langley Peckham Rye East Barnet Ladbroke Grove Noak Hill Lower Nazeing Holborn Rush Green South Wimbledon Deptford Arsenal Hampstead Garden Suburb Shorne Ridgeway Hyde Park Corner Victoria Park Cromwell Road Parsons Green Broad Street Maida Vale Bow Road Charlton Hoddesdon Surrey Quays Walthamstow Bushey Finsbury Baker Street White City Anerley Balham Turnpike Lane Willesden Broxbourne Holloway Road Paddington Cranham Wennington Crystal Palace Newham Queen's Gate High Street Kensington St Lukes Hackney Norbury Stamford Hill Golders Hill Park West Dulwich Bank Marble Arch West Brompton South Bank Kentish Town Woodside Hendon Castlenau Thamesmead Embankment Shooter's Hill Upper Walthamstow Belgravia Alexandra Park South Tottenham Sutton at Hone Rainham Marylebone Hornchurch St John's Wood Holloway Road West Tilbury Honor Oak Park Great West Road Marks Gate West Finchley Farringdon Harold Hill Silvertown Luddesdown Barbican Enfield Beckton Rye Lane Regents Park All Saints Becontree South Ockendon Temple Mills Pimlico Clapham North Shooter's Hill Ranger's House Holloway Docklands Cromwell Road Spitalfields Merton Rocks Lane Havering-atte-Bower Abridge Aldgate Euston Meopham Camden Town Waltham Abbey Bond Street Chiswick Park Mudchute Cuffley Penge Sarratt Acton Town Mottingham Chigwell Row South Ealing West Kensington Peckham South Acton Shoreditch Mornington Crescent Chingford Hatch Putney Vale Grange Hill Wormley Belvedere East Barnet Great North Way Knightsbridge Streatham Common Barnes Westbourne Park Tooting Broadway Whitechapel East Ham Essex Road Bucks Hill Westbourne Green St Pancras West Heath Golders Green Uxbridge Road Kilburn Moorgate Cobham South Darenth Spitalbrook Maida Hill Park Royal Great Portland Street Singlewell or Ifield Northfields Osidge Acton Green South Woodford West India Quay Welling Monken Hadley Botany Bay High Barnet Tower Hamlets Enfield Chase Elm Park Summerstown Harringay Fenchurch Street Waltham Cross Thong Marylebone Putney Bridge Brockley Cyprus Bumble's Green Warwick Avenue North Stifford Southgate Wandsworth Road Perry Street Liverpool Street Hampstead Garden Suburb Brompton Barnsbury Croxley Green Barnes Bridge Westminster Primrose Hill Maple Cross Upper Clapton Longfield Lee Green Upper Holloway Mayfair Monument Kensal Rise Bostall Woods Goldhawk Road Mansion House Angel Mile End Bethnal Green Lane End Wood Green Abbey Wood Stapleford Tawney Upper Sydenham Church End Elthorne Park Culverstone Green Muswell Hill Colney Hatch Smithfield Upton Havering Darenth Istead Rise Lambeth Clapton Shaftesbury Avenue Willesden Junction Aldenham Sole Street Gidea Park Lambeth North Barking & Dagenham Tulse Hill St Pancras Haydons Road Chingford Green Buckingham Palace Clerkenwell Edgware Road North Cray Collier Row Canonbury Greenhithe Gilwell Park Borough Bedmond Drayton Park Finchley Central Coldblow Caledonian Road Bayswater Road Fulham Palace Road Latimer Road West Thurrock Westway Shepherds Bush New Eltham Wapping Church End Lavender Hill Upminster North Ealing Chiswick House Dartmouth Park Hyde Park Chenies Russell Square Letchmore Heath The Hyde Westferry Kensington & Chelsea Hampstead Heath Holborn West Hill Hawley Fortune Green Gloucester Road Hendon Central Shadwell Fleet Street Goff's Oak New Kent Road Lea Bridge Marylebone Paddington Lee Olympia North End Lambeth Forty Hill Goswell Road South Oxhey Maida Vale Soho Kingsbury Sands End Elmers End Temple South Quay Royal Oak Hartley Camberwell West Ealing Turnham Green Alexandra Palace Chipperfield Hackney Wick Colliers Wood Enfield New Ash Green Radlett Hornsey Vale Ilford Lambeth Grange Park South Lambeth Lancaster Gate Rye Park Baker Street Southfields Walthamstow Central Woodford Green Stamford Brook Dollis Hill Romford Manor House Dagenham Hoxton Batchworth Waterloo Newington Green Hornsey Rise Billingsgate Waltham Forest Hornsey Finchley Road Dalston Junction Grays Crofton Park Copse Hill Hailey East Finchley Walworth Chelsea Embankment Balls Pond Road Westbourne Grove Mill Hill East Ladbroke Grove Sidcup Harlesden Redbridge Bayswater Hale End Goodge Street Limehouse Buckhurst Hill Shenley Blackhorse Road Leyton Marshes Archway Bow Deptford High Street Tufnell Park Greenwich Ravenscourt Park Lewisham Lea Bridge Muswell Hill Stamford Hill Aldgate East Highbury and Islington Thamesmead Childs Hill Homerton Flamstead End Stapleford Abbotts Bedford Park Seven Sisters Canary Wharf Millwall Pudding Mill Lane Shenleybury Whetstone Ealing Common East Acton Notting Hill Horseferry Road Kensal Rise Horniman Museum Foots Cray Upper Norwood Broadley Common Rickmansworth Queen's Park North Dulwich Aldersbrook Sloane Square Ridge Neasden Wimbledon High Holborn Herne Hill Holborn Kennington Upper Edmonton Holborn Viaduct Regent's Park Grove Park Hainault Southwark Cathedral Well Hall Coldharbour Fulham Bloomsbury Wandsworth Aveley Cheyne Walk Orsett Catford Brondesbury Park St John's Longfield Hill Roehampton Islington St James's Park Chiswick High Road Mill Hill Fairlop Waters Little Ilford East Wickham Edgware Road Clapham Loughborough Junction South Kensington Stoke Newington Brompton Cheapside Lower Edmonton Devons Road Chingford Bushey Mead Queens Road Oakwood Plashet Stepney Warren Street Hammersmith Northfleet Tottenham Hale King's Cross Turnford Stone South Hornchurch Green Park East Tilbury