Q: Before I hire.. Is there any way I can “tell” if the job done may be good or bad?
A: Ask them about their sanding and finishing procedures. What grits do they use? What finishes do they use? How will they handle possible difficult points during the installation, such as when they may have to change direction and have 2 rows of boards with groove facing groove? You don’t want, for example, 2 rows of boards down the length of the floor that are face nailed. what about transitions from one room to the other?
Webmaster’s summary: Pick their brains to make sure something is in there! (Also make sure to get multiple estimates/quotes, references, etc.)