How to smooth rough walls for painting?

Author: Bridget Koelpin  |  Last update: Sunday, July 6, 2025

Use a sanding sponge with 100-grit sandpaper. Or, to speed up the work, use a pole sander. Wipe down the walls with a damp cloth when you're done and allow to dry before proceeding with your next step. Patches are porous, so the primer readies them for paint.

How to smooth rough walls before painting?

Repair Imperfections: Fill any holes, cracks, or dents with spackle or joint compound. Use a putty knife to smooth it out, then let it dry. Sand the Surface: Once repairs are dry, sand the areas you filled and any rough patches on the wall using fine-grit sandpaper (220 grit). This creates a smooth base.

How to make a rough wall smooth?

How to Smooth Textured Walls
  1. Step 0 – Prep.
  2. Step 1 – Apply a coat of drywall mud to the wall.
  3. Step 2 – Let it dry completely.
  4. Step 3 – Lightly sand between coats.
  5. Step 4 – Apply a second coat.
  6. Step 5 – Sand smooth.
  7. Step 6 – Prime.

Is there a primer that smooths walls?

Smooth Finish: No one wants bumpy, patchy walls. PVA drywall primer smooths out inconsistencies in texture, making the final result look silky smooth.

How do you paint rough textured walls?

How To Paint Textured Walls
  1. Step 1: Assess the Wall Texture. ...
  2. Step 2: Clean and Repair the Walls. ...
  3. Step 3: Tape the Edges. ...
  4. Step 4: Prime the Wall. ...
  5. Step 5: Choose the Right Paint Product. ...
  6. Step 6: Apply the Paint. ...
  7. Step 7: Complete the Finishing Touches.

Why you need to Sand & Clean Before Mudding over Paint

What paint is best for rough walls?

Best Paint Choices for Textured Walls

The best option is a latex- or oil-based paint with a low-maintenance sheen that has a satin or semi-gloss sheen rather than a flat matte finish and is reflective enough to draw attention to the finer features of the wall texture.

How do you smooth textured walls without sanding?

After lots of research I determined that a simple skim coat would do the trick to smooth the wall texture enough to add the paper. Adding the skim coat to smooth the wall texture was super inexpensive and a very simple process.

What product smooths rough walls?

Polycell Polyfilla SmoothOver for Damaged & Textured Walls is the easy way to create a perfect foundation for a great finish. Its special self-levelling formula fills between ridges and bumps and covers cracks and large areas of damage giving a smooth finish that's ready to paint.

What is the best primer for wall imperfections?

To hide imperfections, such as cracks and dents, the Zinsser Bulls Eye 1-2-3 Plus Interior/Exterior Water-Based Primer works well. To promote adhesion and durability on surfaces, such as metal or tile, the Rust-Oleum Zinsser Bulls Eye 1-2-3 Plus Primer is an excellent choice.

How do you smooth badly painted walls?

To remedy this:
  1. Start by sanding down the uneven areas until smooth. Patching may be necessary afterward, be careful as it may take off underlying paint. If severe enough, it may be easier to patch the whole area.
  2. Clean the dust off of the walls.
  3. Prime the area.
  4. Put a sufficient, uniform coat of paint on the wall.

How to smooth rough paint?

Use a Cloth. Using a cloth will remove all impurities sticking to the surface, which prevent it being smooth. It is vital you wait until the paint or any layer you have already applied dries first. Dampen the cloth with some warm water and wipe over a specific area using a heavy amount of pressure.

How to get rid of bumpy wall texture?

  1. Method 1: Soak and Scrape. The soak-and-scrape method is most effective in removing texture when the walls have never been painted. ...
  2. Method 2: Apply a Skim Coat on Textured Walls. Smooth out textured painted walls by covering the texture in a joint compound—also known as a skim coat. ...
  3. When to Call a Professional.

Can you smooth a bumpy wall?

If your plaster is in relatively good condition, and it is just a few bumps and hairline cracks which are causing issues, sanding first is a good option to try. It will work with minor imperfections and give your entire wall a good smooth surface ready for painting. You will need: Drywall sander.

How to fix wall imperfections before painting?

Sanding is probably the easiest way to do it. You could skim coat the walls but that'll take forever and isn't exactly easy. You could also use spackle or joint compound to skim over the imperfections then sand to blend it into the walls. They won't be perfectly flat but the imperfections won't be as noticeable.

How much does it cost to skim coat drywall?

How Much Does It Cost to Skim Coat Walls per Square Foot? It costs $1.10 to $1.30 per square foot to skim coat drywall. This cost doesn't include the price of drywall or drywall installation. More complex spaces, such as a ceiling or intricate hallway, tend to be on the higher end of the cost range.

When not to use primer on walls?

If your walls are in a good condition and you're using a similar paint to the existing paint, you may not need primer. Always check the instructions on your chosen paint for guidance on using primer.

Which is better, Kilz or Zinsser?

Original Kilz Primer allowed more seep through when put in two coats to two different walls in the same area, whereas Zinsser provided superior coverage.

What sheen of paint is best for imperfect walls?

Matte. This flat finish is great for hiding surface imperfections, while its angular shine helps make walls smooth and washable. Use this sheen for: Living rooms.

How to prepare rough walls for painting?

Use sandpaper or a sanding block to dull any uneven surfaces, wipe away dust with a damp cloth and let dry thoroughly. Smoothing walls before painting is necessary for surfaces previously painted with a gloss or high-gloss paint. For previously painted water-based paint, sand with a fine-grit sandpaper.

What is the best tool for smoothing walls?

Plastering Trowels

The most essential tool for any plasterer is a trowel. You'll use this tool to apply the plaster to the wall or ceiling, and a good trowel should be comfortable to hold and have a flat, smooth surface.

How to paint over rough walls?

Here are some key steps to follow before painting over textured wallpaper.
  1. STEP 1: CLEAN THE WALL SURFACE. ...
  2. STEP 2: REPAIR ANY DAMAGE. ...
  3. STEP 3: REMOVE OUTLET AND SWITCH COVERS. ...
  4. STEP 4: TAPE THE EDGES. ...
  5. STEP 1: PRIME YOUR WALL. ...
  6. STEP 2: CUT IN EDGES. ...
  7. STEP 3: ROLL PAINT ON TEXTURED SURFACES. ...
  8. STEP 4: APPLY A SECOND COAT.

Is there a paint that smooths walls?

Polycell Polyfilla SmoothOver for Damaged & Textured Walls is the easy way to create a perfect foundation for a great finish. Its special self-leveling formula fills between ridges and bumps and covers cracks and large areas of damage giving a smooth finish that's ready to paint.

What is the best paint to hide wall imperfections?

Flat paint, with its velvety, matte appearance, is the best choice for hiding any wall imperfections due to its lack of shine and reflective properties.

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