Atari26004Fun wrote:
I'm thinking about putting hardwood floors in my den which is on a
concrete slab, no basement or sub-floor beneath it. Right now it's
just carpeted. My question is what do I need to consider/think about
or ask the contractor to ensure the floors get installed correctly and
level? For example, I know for a fact the floor is not that level,
will it need to be re-surfaced and leveled first somehow (just my
uneducated guess) or is there something they use when installing
hardwood floors over concrete, or is it just good craftmanship I need
to look for, etc? Is it recommended or common that hardwood floors
can be installed over that kind of surface. Many thanks to all.
Regards.

Not level so much as flat.