Originally Posted by buletbob
clean and sweep or vacuum.
These are special vacuum filters for the major brands of shop vacs. They are available online and at big box stores. I can recommend them without hesitation.
I helped my dad with a building he was the general contractor for. I did misc jobs on the site, and did most of the construction clean up. 3,000+sqft of drywall, floors and ceiling. I used a rigid shop vacuum with that clean stream filter. I have killed many regular filters in the past with drywall dust. This filter just keeps going and going and going. And when it slows down, you take it outside and blow it off with the compressor.
I've been using the exact same filter in my home during extensive remodeling, including some drywall removal when changing my kitchen design. I also used it for vacuuming when I did extensive floor sanding, which created lots of fine dust.
Shopvac brand paper bags rated for drywall dust are also great, but at $7 a bag, I would far rather get the filter. But it is a little less messy if you use the bags. Plan to vacuum lots, the dust goes everywhere. Block off any air duct returns you have, and change your furnace filter before and after with a high merv filter.
A sawzall with a sawzall brand blade can be helpful depending on the edge beading, (i.e. the wire mesh stuff).
Watch for wires, don't fry your self by whacking at the walls with a hammer if you don't know your clear.
Putting up new rock isn't all that hard, well it can be a bit of a challenge if you have never done it. Tapping and sanding it so it looks really good is the hard part. I would say this is the #1 reason that people put all those stupid popcorn textures on there walls and ceilings, because they can't get professional looking smooth seams. -- You asked for the down side, thats one of the main ones, but sounds like your deal with that issue already. However in the end with new walls, you might find yourself in the same situation again where you need professional help to get the results you want, but you spent all the time and money replacing drywall that could have been professionally repaired for much less time, less mess, and less money.
It is very rare that any amount of the walls need to be removed for electrical work. Most of it can be done through the outlet and switch boxes.