Use Repaircare epoxy to splice a small piece of pine in. The window surround needs fixing anyway so chip out whatever is loose and refill with your choice of gap filling compounds.
The system is quite expensive to get into. Depends how many of these jobs you might want to do in a lifetime.
I would cut out the old bit with a multitool or a die grinder.
I would expect a fix like that to add about £100 to a job. That's why it's too small to do on it's own. It doesn't mean that someone could do it for £100. Too much drying time.
Thanks. In the absence of any other options I'm going to try it. Might even bust out the burnt sand putty and try to un-fuck the join between the render and the box.
Use Repaircare epoxy to splice a small piece of pine in. The window surround needs fixing anyway so chip out whatever is loose and refill with your choice of gap filling compounds.
The system is quite expensive to get into. Depends how many of these jobs you might want to do in a lifetime.
I would cut out the old bit with a multitool or a die grinder.
I would expect a fix like that to add about £100 to a job. That's why it's too small to do on it's own. It doesn't mean that someone could do it for £100. Too much drying time.