Hi! I need some advice. We're repainting our house-- which has white semi-gloss in every room. My question is-- is it necessary to do anything special to the semi-gloss in order to paint eggshell over it? We're not changing color--- the new paint is white as well, so it should cover fairly easily, I think . I really don't want to have to sand all the walls -- so much dust... The existing paint has been there for over 10 years.

I want to go with eggshell because I think it would show less imperfections and might be more preferable to potential buyers... Would it require less prep work to recoat with a new coat of semi-gloss?

Any help or advice would be greatly appreciated! Thanks in advance! :-)