Wall marks are annoying and although children can be responsible for some of them, they can happen from other things. You might scrape furniture against a wall, for instance. Whatever the cause, you need to be able to remove the wall marks and leave your rooms looking great again.
Step 1 - Painted Walls
Many wall marks on painted walls can be removed with a solution of soap and water, either by using a wet cloth or a scrub brush. This is good for scuff marks. If that won’t shift the marks, mix up 2 tablespoons of baking soda with 1/4 cup water into a paste. Dab this onto a cloth and rub it on the mark. Move the cloth into a circular motion, then rinse clean with water.
Step 2 - Pencil Marks
This is particularly good for stubborn pencil marks. With those, try using a clean eraser first. This should manage to remove some, if not all, of the pencil marks. Where that doesn’t work, use the baking soda. If there are still wall marks, put a little non-gel toothpaste on a clean cloth and rub in into the walls marks.
With scuffs that won’t respond to other treatment, you can spray on some dry cleaning solvent. Look for this at the grocery store. After you’ve sprayed it on the scuff, rub with a clean cloth.
Step 3 - Crayons
With wax crayon marks on the wall, start with the baking soda treatment. This will work for some of the wall marks, but probably not all. To take off the rest, soak a cloth with some penetrating oil and wipe it over the wall marks. This should take them off quite easily. An alternative to this that will also work well is lighter fluid. Again, wet a cloth and wipe it over the crayon marks. Finally, toothpaste should take off the last vestiges of any crayon wall marks.
Step 4 - Oil
To remove oil, you’ll need to apply dish washing liquid to the stain as soon as possible. Let it sit for about 15 minutes then use a scrub brush on it. You should be prepared to scrub hard for a few minutes, then rinse with a cloth soaked in cold water. To dry, blot with paper towels.
Step 5 - Wallpaper
You can’t use the same methods for removing wall marks from wallpaper that you would for painted walls. For this you’ll need to use a very dilute chemical, trisodium phosphate. Use just 3 tablespoons of it in a gallon of water. You’ll be able to find trisodium phosphate in paint stores.
Now, soak a cloth in the mixture, taking care to wear latex gloves so none of it gets on your hands. Rub the marks until they’ve gone. After the wall is clean, wash it with another cloth that’s been soaked in clean water.