Nu stiti la ce fel de neconformitati refera textul? Daca este cu totul imposibil sa aflam tipul lucrarilor, poate ati putea traduce printr-un verb in loc de un substantiv:

"which meant that the work had to be partially or entirely redone"

(nu exista nici un substantiv pentru verbul "to redo")

I think "redone" could apply to many different kinds of work, including construction - if your suspicion is correct. Translating it with a literal "led to" + noun seems problematic to me - I cannot think of many nouns which would work here! And often English does sound more natural with a verb where Romanian would tend to use a noun, so in the absence of any more context, this is probably what I'd do.