In this video I will render and pebbledash the old window opening to try and blend it in with the rest of the wall as best I can.
Plasticiser https://geni.us/pDQ2 (Amazon)
Integral Waterproofer https://geni.us/OCPuDr3 (Amazon)
I also used plastering sand (but it was awful!!!), cement and 10mm gravel and exterior masonry paint.
