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Serving west and central London

Cat flaps in glass doors and windows

Want a cat flap in a glass door or window? We make a new toughened unit with the hole already cut for your flap, and fit it.

Send a photo for a fixed price, usually within 15 minutes in opening hours.

Fixed pricesAgreed before we start
No call-out chargeFree measuring visit
Evening visitsUntil 8pm, Tuesday to Friday
5-year guaranteeOn new sealed units

How it works

You can't cut a hole in toughened glass, or in a sealed unit that's already made. So we order a new toughened unit with the hole cut before the glass is toughened, sized for your cat flap, and fit it in your door or window.

The unit is made to order, so we give you a fitting date when you book.

What to tell us

  • The make and model of your cat flap, or a photo of the box
  • Which door or window, with a photo of the whole thing
  • Which pane, if there's more than one
  • How high the flap needs to be: usually about your cat's belly height

Which cat flaps work?

Most cat flaps made for glass work, including manual, magnetic and microchip flaps. Some need a separate glass-fitting kit or adaptor, so check the box or send us the model and we'll check.

Common questions

Questions people ask

Can you cut a hole in my existing glass?

No. Toughened glass shatters if it's cut, and cutting a sealed unit breaks the seal. The hole has to be made in new glass before it's toughened, so we make a new unit.

How long does it take?

The unit is made to order, so we give you a date when you book. Fitting it is one visit.

Can a cat flap go in a window?

Yes, if your cat can reach it, for example from a low window or with a step outside. Send a photo and we'll tell you.

How much does it cost?

A unit with a cat-flap cut-out is from £325, fitted. We confirm the price from your photos and the flap model.

Where we work

Areas we cover

From our base in Watford we cover west and central London and the areas around Watford, including:

Send us a photo for a fixed price

WhatsApp photos answered within 15 minutes in opening hours. Visits Tuesday to Friday 11am–8pm, Saturday 8am–5pm.