How to Prevent & Fix Paint Bubbling on the Walls?

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When we talk about home paints nothing is more frustrating than those tiny little bubbles that start appearing on the walls after a paint job. It is an eyesore and can be an expensive issue to fix. The worst part about it is these bubbles do not always show up when you are applying the paint. They appear when the job is complete and the paint has completely dried off.

However, it doesn’t mean that there isn’t a way to avoid this from happening. There’s a way to avoid such unpleasantries & in today’s article, we are going to help you fix that.

But before we do that, let’s understand why paint bubbles occur on the wall.

Why Do Paint Bubbles Occur on the Wall?

Paint bubbles often become prominent on the walls because of moisture build-up or heat. It causes the layers to lift away from the surface and therefore, results in not bonding the paint properly with the surface. Some other possible reasons why the paint might not bond properly with the surface includes:

If there’s residue on the wall: If your wall has some kind of residual build-up where the paint is supposed to be applied, it won’t bond properly with the surface and will result in bubbling.

Using low-quality paint: Always make sure that you buy high-quality paints for your walls as they contain better binders which will stick to the wall more effectively and prevent bubbling.

If the wall remains damp: If you’re working in areas of the house which have damp walls such as the bathroom or the basement, moisture can often lead to paint crumbling off the walls.

If air gets into the paint: If air gets into the paint during the application, it will cause bubbling which is why it’s important to mix the paint well before applying.

Skipping the primer application: Primers are essential for paint adhesion. Without proper primer, the paint won’t stick to the wall properly and will often bubble up.

Now that we know what causes the bubbles, let’s move on to how to prevent and fix them.

How To Prevent Paint Bubbling During Painting?

As far as prevention goes, taking precautionary measures is essential right before you begin the painting process. Here’s how you can prepare your house before you initiate the job.

Clean the wall thoroughly: To begin with, make sure that the wall is thoroughly cleaned. You can always use a damp towel or a sponge. Dip it in warm water and apply it throughout the walls. To make sure they are extra clean, you can always use some cleaning agents such as soap.

Dry the wall out properly: Once you have cleaned the wall, make sure that it is dried out properly. If the wall remains damp even after cleaning, you can use a cloth or a hairdryer to remove the moisture. You can always open the windows and door to allow the walls to quickly dry.

Sand down the wall: If there’s any existing paint on the wall, make sure that it is sanded down so that it doesn’t hinder the new layer of paint from sticking to the wall.

Apply a primer: Primers are essential for paint adhesion and should never be skipped. Make sure that the primer is applied to the entire wall in order to promote good quality finish of the topcoat of paint.

Fixing Bubbles After The Paint Has Dried

If you have already applied the paint and it has dried, your best bet is to simply scrape off the bubbled areas. Once that’s done, sand down the area properly and apply a new coat of primer before painting over it. It will be a tedious job but if you want to keep your walls looking flawless, it is an essential step.


Bubbling of paint can be a major problem if it is not fixed on time.

It’s important to understand the underlying causes and take preventive measures before painting in order to avoid any problems later on. If you have already painted and there are bubbles, make sure that you scrape off the bubbled area and apply a new layer of primer before applying the paint. Taking the right steps will help you create beautiful and lasting walls for your home.

Need a paint job done for your home’s interior or exterior? At Attention to Detail Painters, our experienced painters are knowledgeable in providing high-quality painting services. Contact us today for a free quote! We hope the article helped you learn something new.