No, you are definitely NOT being unreasonable.
My neighbours nickname is "DIY Dan" for the very reason you are complaining, we have to deal with him hammering, banging and drilling at any time of the day from 7am til 10.30pm.
We also had to deal with it non-stop for two years after his girlfriend moved in.
DH & I have developed nervous ticks and our walls have dents from where we've banged them to yell at the d*ck to STFU with his DIYing.
I'll help you de-ball your neighbour if you help with mine.