Condos generally have a fee and a deposit for renovation. My Condo is 100,000 baht and they charge a per month contractor fee of about 1200 baht I think...this is to cover lift useage etc'. I have done it 2 times and got my deposit back immediately upon completion. Contractors never want to pay the deposit, so if you get someone in, you will still be responsible for the fee and deposit.
Yes you are right but they were not interested in my change .... rules are to change reason for non O from retirement to thai wife your visa must expire within 45 days or you have to fly out ... I ended up paying a huge backhander and got it changed TIT