How To Remove Mold From Drywall 

Mold On Drywall

As a homeowner, some things are important to know how to do and also are an upgrade in your skill set. Unlike the regular product reviews, this post takes a new turn and looks to inform a larger fan base i.e. homeowners. In this post, we explain how to remove mold from drywall. Undoubtedly, every home gets mold especially, newer homes which have been under closed doors and windows creating the perfect humid condition for mold growth.

However, due to the effect mold has on human beings, it is very crucial that you remove it ASAP. Not just the distortion to the beauty of your wall but also the harmful effect it has on our respiratory systems. With the knowledge that it can affect you, your curiosity must have heightened as you are eager to know how to remove mold from drywall.

Everyone can easily identify a fully grown mold when it has spread its network all over your walls. However, it takes an extra bit of observation to identify mold in its early stages. Regardless, mold should be removed as soon as you notice it. Definitely, you know there exists 2 types of walls to deal with. The painted drywall and its unpainted counterparts get different treatments when molds grow on them.

If you have to remove mold from painted drywall, you shouldn’t have issues completing the project. This is because with the aid of water and the right cleaning agent, you can get rid of the mold. On the contrary, you will experience some levels of difficulty when removing molds from drywalls, not painted. This means the best method to answer your question of how to remove molds from drywalls depends on the drywall in particular.

How To Identify Mold

she discovered black mold house.

People say “a problem shared is half solved” however, here the problem identified is half solved. Unfortunately, we have mold everywhere, as with other fungus types. Fungus grows from tiny spores floating in the air and this validates the statement said earlier about having molds everywhere. Just like a man, the right nourishment will necessitate mold to grow. You really need to know how to identify mold before you know how to remove it from drywall.

The right nourishment for molds revolves around moisture and a comfortable temperature ranging between 40 and 100 degrees F. Unfortunately, every damp place in your home meets these requirements and can support mold growth. Talking about identification, you can easily catch the appearance of mildew, the most visible mold type. Mildew? Yeah, the tiny black spots in your bathroom that eventually become larger colonies.

In addition, you will find it in the grout lines in your shower and damp walls. Also, you can spot them outdoor on deck boards and sides of paintings, frequently in damp and shady areas as well. Sometimes, the most visible mold type, can be mistaken for a dirty surface. Hence, to confirm the presence of mildew, you can perform this simple test. Apply a few drops of the household bleach on the blacked area, if the mildew area lightens after a few minutes,then that's mold, otherwise; you probably have dirt.

Mildew is the most visible type of mold and exists as the least harmful too. However, other mold types cause rots and for this, you should know how to remove molds from drywall. When mold grows to such a high concentration, it has a particular stench attached to it. Once you detect the typical musty odor, perform the earlier described test to confirm its presence.

How To Remove Mold From Drywall (Painted)

Most homeowners have painted drywalls and we’ll deal with this type first. The following steps will help answer the question “How to remove mold from drywall (painted)”.

1. Choosing the right mold killing cleaning agent.

There exists quite a number of cleaning agents on the market. With different levels of potency, ranging from the rather mild ones to the potent ones. Due to individual preferences, these cleaning agents are available in both natural alternatives and as chemicals. However, the choice to go by depends on the severity of the mold you want to remove. The following cleaning agents remain the most commonly used and with varying levels of potency.

Baking Soda

Baking Soda

Yeah! Baking soda has much value than you expected, it’s not limited to the culinary world. With baking soda, you can create the safest and mildest cleaning solution. All you need do is add one part of baking soda to five parts of water.


white vinegar

Making a solution out of vinegar provides enough cleaning action to make your wall free from molds. Unlike in baking soda with varying compositions, just mix vinegar with equal parts of water to create a stronger solution. Although stronger than baking soda, you have nothing to worry about and can even use it with pets or children around.



This stands as another cleaning solution, safe to use with pets or children around. However, in order to use this correctly, just follow the instructions on the bottle.


laundry bleach

Due to the fuming effect attached to the use of bleach, many do not recommend its usage. Just like mold affects your respiratory system, breathing in bleach fumes has harmful effects on you. However, when you have a large area of mold to clean off, you can consider this rather strong cleaning solutions. To prepare the bleach cleaning solution, just mix one part of bleach with three parts of water.

Concrobium Mold Control

Unlike other cleaning agents mentioned, concrobium has a specially designed mechanism engineered to tackle molds. Due to this specialty, it does not only kill the molds but also create a protective layer on the wall to prevent growth of molds on that particular spot again. You can easily purchase one in a simple spray bottle and get to the task at hand. Of all the mentioned means, the use of Concrobium mold control remains the most preferred way.

2. Pour the mixed cleaning solution into a spray bottle

Black mold in the corner of room wall. Preparation for mold removal.

Depending on the cleaning solution you opt for, you might need to pour into a spray bottle. Remember concrobium comes in spray bottles and require no pouring, but other cleaning solutions will require you to. Therefore, pour the solution into a fitting spray bottle and ensure its properly mixed by shaking the bottle thoroughly.

3. Keep the room well ventilated

Regardless of the cleaning solution or chemical you opt for, keep the working room well ventilated. However, when using stronger chemicals like mold control or bleach, this becomes more important. Remember, bleach gives off harmful fumes and you can avoid them with proper room ventilation. As much as possible, prevent the inhalation of these fumes. Therefore, before you start your removal process, ensure all doors and windows are opened.

4. Keep the surrounding areas covered

Sometimes, it’s not just how to remove mold on drywalls that matters but the process. During the process of removing molds, you will undoubtedly have accidental spills. These accidental spills of chemicals can damage items and furniture in the vicinity. Therefore, play safe by moving all the furniture and other belongings outside of the working room. Furthermore, you can sue a plastic drop cloth to keep the floor of certain areas protected.

5. Spray the chemicals and cleaning solution on mold

With the first four steps looking like preparatory, let’s attack the mold now. With every other thing in lace, just pick up the spraying bottle and apply the chemicals or cleaning solution on the mold. Ensure that you shake the bottle thoroughly before you start spraying. Remember, a humid environment favors mold growth, hence non-uniform solution will only cause the mold to grow more. Most importantly, attempt to cover only the affected areas and prevent the solution from running down the wall.

6. Scrub the area with a brush/Sponge

Removing Mold With Sponge

This stands as the most important aspect of the mold removal process. This is because this is where you actually get to remove the mold. Having sprayed the wall surface adequately, equip yourself with a bristle cleaning brush or old toothbrush. With any of these brushes, scrub the sprayed area. However, you need to do this carefully to avoid damaging your wall. Scrub mildly till you no longer see any mold.

7. Dry the Scrubbed Area

We cannot stress enough the fact that moisture supports mold growth, so avoid leaving the scrubbed area damp. Dry the areas thoroughly with the use of a heat gun or simply point an electric fan at the wall.

8. Stain-blocking paint

Lastly, the stubbornness of some molds cannot be hidden. After scrubbing the walls to remove the mold, sometimes it leaves a stain impossible to remove by insistent scrubbing. In order to conceal this rather ugly look, just use a stain blocking primer and paint the wall to your chosen color. This simple process should help hide the stain and save the wall from its rather ugly look.

How To Remove Mold From Drywall (Unpainted)

Removing molds from unpainted dry walls comes with its own level of difficulty. The mold penetrates much deeper into the wall as there exists no protective barrier obstructing its growth. However, with the following steps, you can learn how to remove molds from drywall (unpainted).

1. Protect surrounding areas

The most important step revolves around containing the spread of the fungus infection. Hence before you start the mold removal process, cover the flooring and other surrounding areas.

2. Cut Out The Infected Area

Undoubtedly the mold infected area is a very identifiable part of the wall, hence mark the area with a pencil. With the aid of a jab saw, cut out the area by piercing through the wall and making cuts just along the borders drawn with the pencil. Ensure you do no cut through pipes, or electrical wires right behind the wall. Having cut out the marked area of the drywall, gently remove the moldy piece and set it down in a container.

3. Sweep the room clean with a HEPA vacuum

In the earlier sections of the “how to remove molds from drywall”, we mentioned that we have molds everywhere. Actually, what we have are the spores which when they fall on a conducive environment begin to develop into what you can see on your walls and floors. However, with the aid of a High-Efficiency Particulate Air (HEPA) vacuum, you can make the room completely free from spores.

4. Fit in the new drywall.

Having successfully made a big hole in your wall, you need to do a close-up. All you need do is cut a new piece of drywall to match the exact hole made on the wall as tight as possible. With the use of drywall screws, secure the drywall to wooden beams placed just behind the wall.

5. Apply Joint Compound

Joint compound also known as drywall compound helps to conceal the gaps between the new and the old drywall. Also, it creates a seamless finish and makes the difference disappear into thin air. Just apply the compound around the new section of drywall fitted in. To complete this process, leave the joint compound to dry for about 24 hours. Finally, smoothen the 2 surfaces so as to create a fine finish between the compound and the rest of the wall.


In general, you can only fall into one category and now you know how to remove molds from drywalls. However, sometimes you come across too much mold to remove with mixed solutions and bleaching agents, and when this happens there exists other ways out. All you need to do is rip all the drywall out and start all over again. Otherwise, you can make use of the mold fogger.

Instead of having to rip out all the drywall, the foggers cover all the surface with a fine mist of Concrobium mold control. The mold control chemical doesn’t just kill the mold but also creates a protective barrier which prevents the mold from growing again.