What is the best way to clean walls before painting?

Ask homepainter Jun 11, 2020

As tempting as it may be to want to get right after it, it’s best to put in the proper preparatory measures when painting your home. Cleaning the walls before you bring out the paint, brush, or rollers is essential for optimizing the durability of the outcome. Well-washed walls receive the paint better, allowing your paint job to last longer than it would otherwise.

Items you may need:

  • Water
  • Sponge
  • Chemical cleaner
  • Bleach
  • Power washer
  • sand paper

*Note - Do not use oil based cleaners on walls. Oils in the solution will cause the wall to be un-paintable.

Typically, a sponge soaked in warm water, combined with some elbow grease will work wonders on your interior walls. However, sometimes the dirt on your walls is stubborn and calls for something stronger. If you must employ the use of chemicals, your first go-to chemical solution ought to be bleach. Add one part bleach to three parts water. If bleach doesn’t get the job done, investigate chemical cleaning options. As for your exterior, a pressure washer is a great tool with which to start.


  • Make sure you get the corners!
  • Watch out for bathroom mildew.
  • Dry off the surface after washing it, so that the paint adheres to a dry surface.
  • Sand nail holes and other wall blemishes to create a smooth surface

Too much work?

Don’t hesitate to call in the help of a professional for your project. Whether that’s a local professional painter or cleaning company, we want your home improvement project to go as smoothly as possible.


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