Apart from the render (which, to be honest is getting a bit elderly on that side of the house and go do with a freshen-up), what kind of sealing would I need to carry out? just plaster or is there something I can insert into the crack to ensure wetaherproofing? would silicone work?
Hi
I have noticed a couple of vertical cracks in the external walls of my house which seem to carry right through the masonry.
One by the front door has been there since we moved in about 15 years ago, but seems to have widened slightly. The other (which is causing the greatest concern) is...