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Cat flap fitting London

Cat flap fitting in London sealed, square and set to your cat.

Microchip and standard cat flaps fitted into timber, uPVC, composite doors, walls and glazed panels across Greater London. Height set to your cat's chest rather than a standard measurement, every cut edge sealed or capped, and the flap left in training mode.

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  • Timber doors from £75, uPVC from £95, walls from £190
  • Microchip flaps registered, curfew set and left in training mode
  • Cut edges capped and sealed so the door stays weatherproof
  • We check lease and landlord consent before cutting anything
Illustration of the London skyline over the Thames with a Hello Services van and two-person crew loading boxes
Illustration of west London stucco terraces by a tube station entrance with a Hello Services cleaning team unloading equipment
Timber door from
£75Timber door from
Typical visit
45–60 minTypical visit
Boroughs covered
33Boroughs covered
Public liability cover
£5mPublic liability cover

London pricing

London cat flap fitting prices.

Priced by what we are cutting through, because that is the whole job. The flap itself can be supplied at cost or you can buy your own.
London cat flap fitting prices by door and wall type
JobLondon fromTypical timeWhy the London price differs
Timber door£7545–60 minCut, chamfered and sealed so the door edge does not swell in winter.
uPVC door panel£951–1.5 hrsCut in place with the frame masked and the edge capped so water cannot track in.
Composite door£1201–2 hrsA foam core between two skins: both faces cut cleanly and the core sealed.
Brick or block wall up to 350mm£1902–3 hrsCore-drilled both sides with a tunnel liner, so the cavity is never left open.
Glass panel, glazier cut-out supplied£1101 hrToughened glass cannot be cut on site; we template it and fit the replacement pane.
Microchip set-up and training mode£2515–20 minChips registered, curfew and selective entry configured before we leave.

Domestic prices are the total you pay. Commercial and landlord invoices are quoted plus VAT at 20%. ULEZ, the Congestion Charge where it applies, permits and bay suspensions are itemised in the written quote, never added afterwards.

Working in London

The London door problem.

Most London cat flap enquiries stall on the same three things: the back door is glazed, the flat is leasehold, or the only external door is a communal fire door. All three have a way round.

Glazed back doors in the terraces

Half-glazed back doors are standard in the Victorian terraces of Leyton, Catford, Willesden and Tooting. If the glass is toughened — and post-1990 replacements almost always are — it cannot be cut on site at any price.

The two options are a replacement pane with the cut-out made by a glazier, or a wall tunnel next to the door. We quote both so you can compare.

Leasehold flats and communal doors

In a converted or purpose-built flat the front door often opens onto a communal hallway and is a fire door. Cutting it voids its fire rating and breaches the building's fire strategy, so we will not do it.

Where there is a private rear door, balcony door or a ground-floor window panel, we can usually work with that instead — and we will tell you at quote stage, not on the doorstep.

Foxes, curfews and microchip flaps

Urban foxes are a real consideration across most of London, and a plain flap in a ground-floor kitchen is an invitation. A microchip flap with selective entry keeps everything but your cat outside.

We register the chips, set a night curfew if you want one, and leave the flap on its training setting with the swing eased so a nervous cat will actually use it.

Draughts, damp and making good

A badly fitted flap is a permanent draught and, in a uPVC panel, a route for water into the door core. Every cut edge is capped or sealed and the flap is drawn up evenly so the frame does not bow.

If you move out and want it removed, we can fit a blanking panel and make the door good again.

How it works

Three steps and a written price.

Booking cat flap fitting in london takes three steps — you get a fixed written figure before anyone is sent, and the price on the page is the price on the invoice.
  1. 1

    Tell us the postcode and the job

    Send photographs or a short video with your London postcode. It takes a couple of minutes and there is nothing to pay to ask.

  2. 2

    Get a fixed written price

    We come back with one figure for cat flap fitting in london — ULEZ, the Congestion Charge and disposal or materials already inside it, with any council permit shown at cost.

  3. 3

    Book the slot that suits you

    Pick a morning or afternoon window, including evenings and weekends. You get a named team, a text before arrival and paperwork on completion.

London questions

London cat flap questions.

Common questions

Frequently asked questions.

  • How much does cat flap fitting cost in London?

    £75 in a timber door, £95 in a uPVC panel, £120 in a composite door and from £190 through a brick or block wall up to 350mm thick. Microchip set-up is £25. Those prices include the fitting materials and the parking.

  • Can you fit a cat flap in a glass door?

    Not by cutting the glass — toughened and laminated panes cannot be cut on site and will shatter if tried. We template the panel, a glazier supplies a replacement pane with the cut-out, and we fit the pane and the flap for £110.

  • Can you fit a cat flap through a wall?

    Yes, from £190 for a wall up to 350mm. It is core-drilled from both sides and fitted with a lined tunnel so the cavity is never left open to the weather. It is the usual solution where the only external door is glazed.

  • Do I need permission if I rent?

    Almost always, and get it in writing. A flap cut into a door without consent is one of the more common London deposit deductions. Send us the landlord's email and we will fit to whatever condition it sets.

  • Will it stop foxes getting in?

    A microchip flap will. It only unlocks for the registered chips in your cats' necks, so foxes, neighbouring cats and anything else stay outside. We register the chips and can set a night curfew as part of the £25 set-up.

  • What height should the flap be?

    Level with your cat's chest, not a standard height off the floor. We measure your cat rather than the door, which matters for older or arthritic cats who will stop using a flap they have to climb into.

Free quote · 1-hour reply

Get a London cat flap price

Tell us the door type — timber, uPVC, composite, glazed or a wall — and your postcode. You get a fixed written price the same day.

No deposit is taken until the price and slot are confirmed in writing.

Reviews for cat flap fitting across the UK

4.5 ★ from 3,131 Trustpilot reviews
★★★★★Trustpilot
Sulltan is the best handyman in London. He is very reliable and professional. I highly recommend.
Bu li · · View on Trustpilot
★★★★★Trustpilot
I booked online last minute, as I needed a handyman urgently for the next day. When I called Hello Services, I spoke to Michelle and she was extremely helpful and arranged everything within 15 mins. Adam the handy man then came to fix my wardrobe sliding door, which were jammed and came off the ledge… Read in full →
T Gibbs · · View on Trustpilot
★★★★★Google
Sulltan is the best handyman in London , Highly recommend ......
Chyve Sta. Ana · View on Google

Read all 26 cat flap fitting reviews

4.5 out of 5 from 3,131 reviewsCheck on GoogleCheck on Trustpilot

Quoted verbatim from reviews customers left on our public Google and Trustpilot profiles. Nothing is edited, shortened beyond the link above, or written by us.