Your fault - You can't expect OTHER trades to know what YOU intend to do. Just as YOU have no knowledge when it comes to hitting OUR power lines.
Prat.
Ever heard of a SCHEDULE OF WORKS? Ever thought of TALKING and LIASING with other trades?
Perhaps you should of filled the holes a little sooner, prior to the obvious fitting of kit in a known switch room.
Uni-strut would be preferred to wood, granted.
How is it our fault arzehole?
Site manager is blaming the stooped spark as it happens.
Did you tell the site manager that the wall couldn't be touched until you'd bothered to grout the holes, so that he could ensure other trades didn't get in your way?
