Cochese said:
Why seal it.........hazardous??
At least keep some mutants or hostage / rape victims down their
I think he means seal the walls from dampness, like turn it into a proper room or something.
If im right we are in the process of doing ours too, but since we have a drain system in ours it will cost more since we either have to get that moved or buy an expensive "on all the time" pump.
Then after that you can seal the walls with a coating system or just have it painted with a damp course paint and have the walls plastered.
Since our Basement/Cellar is a War bunker we may need other shit doing for size measures etc.
We plan to use this UK based company...
http://www.cellarseal.com/
Not sure how you go on about it in the US.
EDIT: Cost is about £5,000 UK Pounds for our basement, thats implying a proper job, not some cheap ass fat builder to pretend its done.