thank you.
I am a bit thick, so i would take the measurement to a glazier, who would fit me a new sheet of glass with cat flap hole, do I have to then take out the old glass and fit the new one then fit the cat flap, or do they come to my home and remove and fit for me??
I live in a rented house so I would preferre to have it fitted into the wall next to the door, but thought it would be easier to have it fitted into the glass panal next to the back door. I will ask the land lord permission first but if he says no then I surpose I have it fitted and then when I leave have the glass panel returned to original state. What a carry on.