How to Remove Mold on Drywall, Wood, Carpet, and Tiles

In the home, mold often occurs on a variety surfaces such as wood, drywall, tiles and grout, and the carpet. And there are different ways of removing mold from different surfaces. In this post we take a look at some of the most effective ways to remove mold from different places inside the house.

1. Mold from Drywall

Unpainted drywalls unfortunately are adversely affected by molds. This is because they are porous and so you may never have your wall exactly the way it was, even after mold remediation. In a worst case scenario, you may be forced to replace the mold infested drywall.

Removing mold from drywalls

For the sake of the aesthetics, mold on a drywall is better off removed and replaced. Use a blade to hollow out the moldy area, ensuring that the area falls between two blocks of wood secure at the back of the drywall.

Cut out a new drywall same as the moldy one you have removed, to fit it where you removed the other and join it to the wooden blocks using screws. To strengthen this joint, apply a joint or drywall compound. To achieve a precise fit, take your time to measure the dimensions of the cut out before replacing.

After allowing it enough time to dry out completely, sand the area you’ve applied the joint compound to give it a neat finish. Painting is recommended as it does not only give you a uniform finish, but also prevents the surface from future attacks by molds.
It is always advisable to HEPA vacuum the room after any mold removal process to get rid of any mold pores left in the atmosphere.

Here is a quick video on how to remove mold from drywalls

How to Remove Mold from a Painted Wall

Unlike drywalls, removing mold from painted walls is quite simple. This is because paint makes the wall non-porous hence, mold only grows on the surface and doesn’t penetrate.
Simply use a suitable solution to wipe or scrub off mold from the painted wall.

2. Mold on Wood

Unpainted wood is porous so it is likely that mold will penetrate wooden surface. However, once mold is remediated from wooden surfaces, it is safe to continue using the surface. Well treated wooden surfaces will not have mold growing on them in future as long as moisture levels are maintained at their minimum.
Painted wood is far much better than unpainted wood as mold will only attack its surface without penetrating.

Cleaning Mold off Wooden surfaces

A simple wiping or scrubbing using a soft cloth or an abrasive, along with clean water and detergent is enough to remove mold from wood.

A mold killer is ideal but would be optional at this point as the aim of this process is to get rid of mold from wooden surface. Again, you never miss mold spores in your home so you may want to focus on removing mold rather than killing mold. Killing mold is a good idea but we will not fail to mention that dead mold spores also cause allergic reactions.
You can use this same mold removal process on any wooden surface.

Cleaning Mold Stain from Wood

Cleaning off mold and getting rid of mold stains are two different tasks altogether. While the former will address the main issue, the latter takes care of the aesthetic value of your surface. Mold removal doesn’t necessarily mean that you are done with your surface. Sometimes there’s stain left by the mold. However, there is no cause for worry if you have removed the mold and reduce moisture content in the room to prevent mold from reappearing.

One way of removing stain from wood is by sanding it. The only challenge is that this method is not suitable for surfaces that mold had deeply penetrated. The other option is rub some bleach on the surface to fade the stain away. This method too is not given, as there is a possibility of bleach discoloring your surface. Better to perform a spot test to confirm that bleach is the best option you have for mold stain removal.

Get rid of the moldy Wood

Where cleaning mold off your wooden surface and removing its stain is not an option, you may want to consider replacing the moldy wood. This method is best applicable where it is easier and cheaper to replace the wood rather than remediate the mold on it. Otherwise, sometimes replacement is not worthwhile.

What Next after Remediating Mold on Wood

The importance of HEPA Vacuuming the room after mold remediation should never be overlooked. This takes care of the tiny mold spores left floating in the air to prevent further allergic reactions.
To keep your wood safe, you may consider coating it with paint or a fungicidal sealant to make in non-porous and to keep mold off the surface.

3. Mold on Carpet

Wall to wall carpets are easily attacked by mold compared to other carpets. If you notice constant mold growth on your wall to wall, you might be forced to remove it completely. This is because there is no guarantee of removing all molds off the carpet and leaving it on the floor only aggravates the problem.

Mold in carpet
Mold in carpet

Mold on Wet Carpet

A carpet that has been soaked in liquid takes time to dry. To make it worse, the padding at the bottom of the carpet takes an even longer time, sometimes beyond 48hrs, to dry. This makes it susceptible to mold.

Replacing Part of Carpet

Replacing a smaller moldy part of the wall to wall can be the better option provided you don’t mind the difference that the new section will bring. Ensure that as you are cutting this section out, you include a 12-inch allowance on each side.

To prevent the growth of mold on the new section you are going to fit in, allow the floor to dry completely before you do the fitting. The importance HEPA Vacuum after every mold remediation process can never be overemphasized.

Mold on Rugs and Non-Fixed Carpets

Unlike the permanent wall to wall carpets, rugs and non-fixed carpets are a lot easier to handle. It takes simple cleaning rather than replacement, to remove mold. For best mold remediation results, let a professional carpet cleaning company or mold remediation specialist, do the job.

For the DIY enthusiasts, all you need to do is take out the carpet, spread it on a flat surface, and sluice both sides. Thereafter, use a cleaning solution or mold killer to scrub out the mold. Finish off with a thorough rinse. Once this is done, you can achieve a quick dry with the help of a wet vacuum, otherwise give it ample time to dry well under the sun. Be sure to dry both sides of the carpet to prevent mold from growing back.

HEPA Vacuum the carpet or beat it up while on the line to get rid of any mold spores and other particles left after the entire process.

4. Mold on Tiles and Grout

As far as mold is concerned, tiles are not an exception. Tiles found in wet areas like in the bathroom and kitchen sink are more prone to mold compared to the others. However, tiles are non-porous therefore cleaning mold off them shouldn’t be a difficult task.

Removing Mold from Tiles and Grout

Using a brush along with detergent or mold killing solution, scrub off the mold from your tiles or grout. In addition, commercial grout and tile cleaners are available in the market today.
Mold stains are common on grout after mold has been removed. Bleach is a good solution you can use in fading the stain but take care to perform a spot test to be sure that it is suitable for this purpose. Wear gloves to protect your hands when using bleach.

Hydrogen peroxide also does a good job so you can use it as an alternative to chlorine bleach. Another option is Oxiclean containing oxygen bleach and this is good particularly if you have a septic system. Once you have applied bleach, allow some ten minutes.

Baking soda also works pretty well with stains on tiles and is a cheaper option too. Mix a little baking soda in water then scrub it on the grout using toothbrush. Repeat the process over and over until the stain is cleared.

Once the stain is cleared, rinse off the bleach with plenty of water to leave your surface clean and stain-free.

Sometimes, stubborn stains won’t clear as fast as you expect them to. In this case try soaking paper towels in bleach and placing them on the stained section of your grout. With time, the stain should fade away.

Grout Treatment

Applying grout sealer on your grout is a good way of clearing any mold spores left after remediation and better still prevent mold from reappearing.

Replacing moldy grout is yet another alternative. Simply scrap off moldy grout using the flathead screwdriver then apply a new layer o grout mixture. Just so that you achieve maximum protection from mold, apply a top coat of grout sealer.


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