It was part of a new scheme in the Neath East Renewal Area, Neath Port Talbot County Borough Council, Wales as part of the proposed community energy saving programme scheme (CESP). To improve energy efficiency standards and reduce fuel bills.
Well, obviously, someone’s going to have to touch the wall and get the leak fixed.
If this leak has only manifested itself 18 months after the installation has gone in place it seems unlikely that you would be able to prove that the insulation caused the leak unless, when the plumber investigates the course it is obviously caused by the insulation.
They cannot simply invalidate the guarantee unless whatever happens to the wall necessary to repair the leak compromises were at that point. They cannot invalidate the guarantee in a whole house purely because you broke into the wall at one point to fix a leak.
You are under a duty to mitigate your loss and in order to do that you are going to have to get the leak fixed. It is an impossibility to do it without removing part of the insulation and in that respect, if you reluctant to do it, ask the insulation company how they propose you repair these pipes.
Having then repaired the pipes and ascertain what the problem is you may potentially have a claim against the Insulation installers. I would then address any problem of the warranty when any warranty issue arises because at this stage you may be worrying about compromising the warranty over something which never goes wrong.
Can I clarify anything ?