Unfortantally holes for cat flaps can not be cut into existing glass on site.
We will come to site, measure your existing glass, and then manufacture a new pain of toughened glass with a hole to suit your cat flap. We will then return to site and install the new sealed unit with the hole pre cut into the glass and fit your cat flap.
Top Tip :
If you rent your property then ask us to leave the old panel of glass,
so you can keep it safe and then we can re install it if you leave the property