I would however pour in some waterproofing sealant on the floor to prevent upwelling of moisture. 

What products/methods have people used to help "soak up" dampness and moisture in a basement?

The difference is that the polishing actually penetrates into the concrete instead of sitting on top of it, making it more beautiful and durable.

There is no moisture now in the basement I just don't nail trough the floor concrete.  

I figured the moisture was a good part of the reason for the roaches.

I tend to do my own work (although jacking up and putting a foundation under, in order to raise the ceiling is beyond me) and I'm not sure I could bring this in for $50KI'm guessing you have building codes so plan on re-wiring the whole house to bring to code.Floor uneven and warped is MOISTURE, have to find it and stop it.Don't know the size of the windows but a few hundred per is about right.Carpet a few thousand.Sheetrock repair a few hundredKitchen cabinets and appliances, minimum of about $5K for CUT RATE stuff.Counter tops, $300-$3KInsulate and sheetrock basement, a few thousand.Knock out a few walls etc in the upstairs, about $5K+, moving walls is not as simple as "moving walls".Bedroom doors, $100/each, minimumLandscape and exterior paint, a few thousand."

Get it permitted and done right.Also, you're doing something that throws a lot of moisture into the air, vent it incorrectly and you could have a serious moisture and mold problem down the road.Get someone that really knows their stuff, this is NOT amateur hour.all cash

I'd start with a few:Droopy ceiling fan blades - Excessive moisture trapped in ceiling and attic, possible mold spread inside, plumbing problem, roof leak, soggy studs, possible damage to electrical wiring.Cracks on the ceiling - Possible foundation problem, roof leak, or storm and hail damage to roof.Soft spot or dip on the floor on 2nd level - Workmanship on flooring cover, water damage to wood underneath, renovations done from down stairs ceiling created damage.House extension not built on slab or same foundation as the house - Difference in foundation and level.

You can do a moisture test on it if you are worried about it.

Chimney penetrations in the roof are future leaks.