Should I sand the existing paint on my drywall before a re-paint? If yes, what sanding paper grit should I use? Thank you!

  • Are you asking if you should sand the paint on the wall before re-painting?
    – RMDman
    Aug 4, 2023 at 18:45
  • Yes. Sanding the paint.
    – LHA
    Aug 4, 2023 at 18:47
  • diy.stackexchange.com/a/88741/23295
    – Mazura
    Aug 5, 2023 at 19:35
  • We don't sand paint unless you ask us to but we will gladly charge you more money for an unnecessary step. Sponge mop and TSP.
    – Mazura
    Aug 5, 2023 at 19:50

2 Answers 2


The answer depends on what the finish is that the current paint has. It also assumes that the new paint is compatible to the purpose. ( you are not using automotive paint on a wall of your home. Forgive me if I am too assumptive. People will do very odd things.)

If the current finish has a sheen that is flat, eggshell, or matt finish then no sanding is needed.

If the finish is gloss or perhaps even semi-gloss then a light scuff may be in order. For those type of finishes I just use a scuffing pad . I use fine or very fine. Then wipe the wall down with a damp towel.

You are then ready to paint.


Sanding (roughing the surface) never harms and it always helps.

The new paint adhesion will be better, and all the handprints (fat) will be removed.

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