We have double patio doors from the kitchen and thinking of getting one door replaced with a two sectioned one.

Bottom quarter houses the cat flap and rest is double glazed glass.

Has anyone ever done this? I don't want to mess up the front door. How much did it cost?

You can't just get a glazier to cut a hole for the cat flap as you break the double glazing seal.

I have double patio doors in the lounge leading out to the garden and had the same problem.

However, what I've done is gotten the cat flap fitted in the wall (next to the patio doors). This saved me ruining the patio doors.

Have you got any walls/space next to the patio doors that you could fit a cat flap in?

My wife wants me to do that! Yes there is space next to the vent hole I put in for the tumble drier.

I am resisting doing that as when we come sell our house a vent hole in the brick would not look out of place but a big hole for a cat flap would.

As in we could replace the door if it was a deal breaker but more difficult to fill up brick work and it not look naff.

True...but its hardly a big hole...its all done very neatly and there's no draught at all. It cost me £80 to get the hole put in the wall (plus the cost of the cat flap which was about £25?).

I guess its down to what you want to do.

Dont replace the whole door - just have a replacement glass unit made with a hole in it - this can be done quite easily (just make sure you buy the right kind of catflap first).

We have had this done twice - one in a french door pane and once in a small window pane.