Cat door - best for security & new door!

[Glowlamp]

I’m about do get a new back door and need to supply the makers with a cat door. Anyone got any recommendations for one that is quite windproof (north facing) and also quite secure at keeping other cats out. We only have one large Tom who has broken a lot of doors. Tends to use his skull when he loses his magnet!! Help.
The one we are looking at is Sureflap cat flap with microchip identification. Any help appreciated.

We've had a Sureflap for years - in this house and our previous house. It's better than a magnetic catflap as obviously it doesn't matter if the cat loses its collar. It keeps other cats out successfully, we've never had another cat get in. One of my cats managed to smash the door open when I locked him in, but Sureflap provided a free new door/control switch, so we didn't have to replace the whole unit.

So yes, I'd recommend it - although you will get a minor draught from any cat flap.

Another vote for the sureflap here. We were initially put off by the cost, but so much better than the ones reliant on a magnet on the cats collar. We have two cats and both have microchips that activate the flap.

Another Sureflap owner. It’s a game changer we love it.

Thank you all.......I’ve ordered. I should have upgraded years ago really but I tolerated it.