If you have decided to give up wallpaper and paint the walls of your home, this article will be very useful to you. We will describe in detail the preparation of walls for painting after removing the wallpaper.
Prepping Walls for Painting After Wallpaper Removal

Although the transition from wallpaper to paint is challenging, this is a one-time application. After this process, you will be able to change color more effortlessly in your next wall painting. However, the preparation stages for painting after removing the wallpaper and the first painting are essential.
After removing the wallpaper, the walls must be completely ready for painting. Otherwise, the entire wall painting process may be affected. “Related article: How to paint a room fast?” After the wallpaper is removed from the wall, the applications made to prepare the wall for painting prevent future paint peeling. It also ensures that the wall is smooth.
To remove and prepare the wallpaper for painting, you must first completely peel off the wallpaper from the wall. After that, you should determine the wall’s problems and take action.
How to Prep a Wall After Removing Wallpaper?
You need to remove wallpaper and glue residues from the wall. You should also repair the rough surface and repair holes and cracks. Also, you should use mold cleaners if mold is on the wall. Now, let’s explain how to do this in more detail.
1-Remove Any Remaining Wallpaper Residue
Remove any leftover pieces of wallpaper using wallpaper remover tools, scrapers, or hot water. Spray warm water onto the remaining thin wallpaper using a spray bottle. Allow it to soften for about 15 minutes, then scrape it off.
2-Get Rid of Adhesive Residue
Wallpaper adhesive can leave a rough texture on the wall and may react with the paint, causing it to soften again. To ensure a smooth surface, sand off all adhesive residue completely.
3-Repair Any Holes and Cracks
After removing adhesive residue, the next step in preparing the wall for painting is to create a smooth surface. Any holes or cracks should be filled before painting. If this wasn’t done before installing wallpaper, you’ll need to do it now. Fill all holes and cracks with spackling compound, let it dry, and then sand the area smooth. “Related post: How to fix cracks in walls?
4-Clean Mold-Affected Areas
Some types of wallpaper can trap moisture, leading to mold growth. If you notice mold spots after removing the wallpaper, do not paint over them. Instead, use a mold remover spray to clean the affected areas thoroughly. Allow the wall to dry completely before moving on to the next step. “Related article: How to remove mold from bathroom?”
5-Apply Primer
Primer will seal the repaired areas and help the paint adhere better to the wall. Although some people skip this step, we highly recommend applying primer after removing wallpaper to ensure a smooth and even paint finish. “Retated post: When to use primer before painting.”
Painting Walls After Removing Wallpaper

Once your walls are fully prepped, apply at least one coat of primer. Allow it to dry for at least five hours before applying two coats of paint for the best results.
Frequently Asked Questions
Below, we’ve answered some frequently asked questions about painting after removing wallpaper. Feel free to leave a comment if you have any other questions.
Is a Primer Necessary to Prepare the Wall for Painting after Stripping the Wallpaper?
Yes, after removing the wallpaper, you should use a primer to prepare the wall for painting. This is necessary, at least for one time. It is not mandatory to use a primer for future wall painting applications. We recommend using a primer when you remove the wallpaper and paint the wall for the first time.
What is the Best Way to Prepare Walls for Painting after Removing Wallpaper?
After removing the wallpaper, the best way to prepare the wall for painting is to sand the wall with a sanding machine. The sander removes the wallpaper adhesive residue from the wall and quickly smooths it, preparing it for painting.
What to Do Before Painting after Removing Wallpaper?
After removing the wallpaper, the best way to prepare the wall for painting is to sand the wall with a sanding machine. The sander removes the wallpaper adhesive residue from the wall and quickly smooths it, preparing it for painting.
What Happens if You Paint over Wallpaper Glue?
First, you should check whether the wallpaper glue sticks to the paint. However, this is not a recommended practice. Because the water in the paint starts to soften the hardened wallpaper glue, which reduces the adhesion resistance of the paint, after a while, peeling of the paint may occur, and damage to the wall may occur. You should remove any glue residue and smooth the wall as much as possible.
Can You Sand off Wallpaper Glue?
Yes, it is possible to sand off wallpaper glue. You can remove hardened wallpaper glue from the wall by sanding.
Do You Need to Remove Wallpaper Glue before Painting?
Yes, you must remove the wallpaper glue from the wall before painting. Otherwise, the wall paint may peel off.