Hello! I was after some advice. We recently completed a large renovation on our semi-detached house, which impacted on the party wall, and understandably we are responsible for repairing any damage now it is done.
Our issue is that the neighbour has gone ahead and completed their repair works and sent us the bill without any indication in advance of quotes, or allowing us to see the scope of the works needed. The bill is many thousand pounds. Maybe double what we would have expected to pay, with seemingly the entire house being fully repainted/decorated. We had hoped to have our builder go around beforehand and give us a sensible indication of what was actually damaged and what we needed to pay for repairs to benchmark their quote(s). We have an independent structural engineer's report but all that said was that no structural damage was caused, simply some cosmetic issues needing painting or plastering, so not comprehensive on the scale of repairs needed.
We are conscious we have to live next to him for probably many years, so not sure how to address this.
He also has form for asking for many ongoing costs during the build and we have already paid him a fair amount for these, e.g. extra cleaning and window cleaning costs too.