I just built some oak pieces and put a clear poly finish on them, now the client wants them a little darker. How can I achieve this without stripping the poly finish?

Friends open a clothing business and wants me to paint the walls 2 colors. A stripe at 18 in at top and solid remainder of wall.

I have a water base stained wooden fence around my pool. The stain is at least five years old and mostly gone. I want to replace the wood panels with vinyl and paint the posts and cross members white. The wood to be painted is very dry. Is any good

I need to clean squirrel dung from a concrete block wall (interior) before I paint. I have tried pressure washing, greased lightning, Clorox and even pain thinner. Do you have a suggestion for removing this nasty stuff?

Have stripped the wallpaper from my two bathrooms. Underneath the wallpaper was the green board used in bathrooms for moisture. However, when I was stripping the paper I accidentally ripped some of the green board paper. What is the best way to repair this? I guess I would fill in