As a professional painter, i can say ceilings first definitely.
Should I Paint Ceiling Or Walls First. A video discussion on the painting process and what you should paint first on you interior painting project. Can easily roll all around the perimeter as well, brush touches in the corners and watch for drips.
Should I paint the walls or ceiling first? - Quora from qph.fs.quoracdn.net
Find out the order you should be painting in so you end up satisfied with the finished look. He says the painting is done first and then tile and that is what he says he's going to do. No matter how hard you try to paint perfect lines where the wall meets the ceiling, it can sometimes be tough — especially if the wall is uneven.
Diy painting ceiling, walls, or trim?
My general rule is that paint should generally be one of the last things that you do. Ceiling paint is designed to allow you to apply it with ease. Which ceiling paint color should you choose? A video discussion on the painting process and what you should paint first on you interior painting project.