Mould in corner of bedroom wall.

We are in the process of redoing our front bedroom. The windows need replacing as the double glazing has blown in most of the panes. The wall next to the windows had a fitted wardrobe. We have removed this wardrobe and in the corner there is some black mould. The guttering and the fascia on the outside is in the process of being repaired so obviously rain water has been running down that wall, on the outside. My question is, do we need to remove all the plaster or can we remove the mould and apply anti mould paint over it? And if so which products do you recommend we use. Thank you ????

14 Answers

All plaster must be removed, anti-dampness injections must be made. Then apply new plaster. Use paint against moisture. Products: Dryzone Damp Proofing Cream Kit , Ultracure DPC Injection, No More Damp Thermal Dry Anti-Condensation Coating, Dulux
15th Apr 2024
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There’s two options you can go with here, you can simply clean down the mould area affected with mould and mildew cleaner and paint over with mould paint. This of course would be the most budget friendly option, but there always runs the risk of the mould returning. Instead we could remove the plasterboard, install storm dry on the block work and replace the plasterboards. This option would mean it’s less likely for the mould to return, but it’s up to the customer. Both jobs would be finished professionally and will remove the mould from the affected area.
15th Apr 2024
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JF Toro Ltd
1 Reviews, 100% Positive
Well, it is important to determine whether the mould is only on the surface or if it has spread to deeper layers of the wall. If the latter is the case, as a result of water continuously penetrating the wall due to water damage or a lack of draining, the plaster needs to be removed generously.
15th Apr 2024
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watkins painting and decorating
1 Reviews, 100% Positive
remove the mould and add an anti mould paint i’d recommend using zinsser perma white mould resistant paint
23rd Apr 2024
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using bleach or even a mould wash will only remove the surface mould. The main issue is active mould growing throughout the plasterboard. Unfortunately, the only way to get rid of mould for good is to replace the plasterboard.
25th Apr 2024
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We would remove the mould first and then apply Anti mould or Damp proof paint over the area where mould persist.
25th Apr 2024
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Paint surgeon
0 Reviews
Hi there .
I have read your question and my advice would be to remove the plaster and start again with fresh plaster .. it would be a bit more expensive to do but as you are already repairing the guttering and the fascia . . The wall itself would be hard to judge at how far the water has penetrated the wall .. you can use anti mould paint ..but! That would only help the top surface not inside the wall ,, that is why re plastering would be the best .
23rd Apr 2024
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DAVID
0 Reviews
Certainly, if the mould growth is limited to a small area, you can remove it and apply anti-mould paint over it. Make sure to address the underlying cause of moisture to prevent future mould growth. Look for anti-mould paint products at your local hardware store.
25th Apr 2024
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EC Renovations
4 Reviews, 100% Positive
If you've found black mold in your front bedroom due to water ingress from exterior issues like faulty guttering, it's crucial to tackle both the mold and the underlying moisture problem. Begin by thoroughly removing the mold using a mixture of water and detergent or a commercial mold cleaner. Protective gear like gloves and a mask is essential during this process. Once the area is clean and dry, address the exterior issues causing moisture intrusion, such as repairing the guttering and fascia. After ensuring the wall is completely dry, apply an anti-mold paint or primer to inhibit future mold growth. Be sure to choose a product specifically formulated for this purpose and follow the manufacturer's instructions carefully. Regularly monitor the area for any signs of mold recurrence and promptly address any new issues that arise.
8th May 2024
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It's essential to address the moisture issue first to prevent further mold growth. Once the repairs are completed externally, you can remove the mold using a mixture of water and detergent or a specialized mold cleaner. Afterward, apply an anti-mold primer or paint to inhibit future growth. Products like Zinsser Mold Killing Primer or Dulux Anti-Mould Paint are popular choices. Ensure proper ventilation in the room to reduce moisture buildup. If the mold infestation is severe, consulting a professional might be wise.
8th May 2024
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Jay Wadley
0 Reviews
I would remove blown plaster and the unibond and re skim then damp and mold seal then finish
8th May 2024
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Do we need to remove all the plaster or can we remove the mould and apply anti mould paint over it?
- Everting is depended of client budget and intention
8th May 2024
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RCF Installer Ltd
0 Reviews
Certainly! Dealing with black mold on walls can be a common issue, especially in areas with moisture or poor ventilation. Let’s break down the steps to address this situation:

Removing the Mold:
Before applying any paint, it’s essential to remove the existing mold. You can choose from two methods:

Method 1 (Quick Wash):
Prepare the area by laying down dust sheets and covering nearby furniture.
Mix warm water with a few squirts of washing up liquid.
Use a kitchen sponge or scourer to wipe off the surface mold.
Rinse the wall with clean water and wipe it dry with kitchen roll.

Method 2 (Baking Soda Paste):
Prepare the area and cleaning solution.
Mix two parts baking soda with one part white vinegar to create a thick paste.
Apply the paste to the mold-affected area and leave it for about an hour.
Use a stiff brush to remove as much of the paste as possible.
Wipe down the area with a damp cloth and clean up any debris1.

Anti-Mold Paint:

Once you’ve removed the mold, consider using anti-mold paint to prevent its recurrence. Here are some options:

Suretherm Anti-Condensation Paint:
This water-based emulsion is designed to deal with internal mold caused by condensation. It absorbs heat that would otherwise escape through the wall, thanks to its glass microsphere technology.

Polycell One Coat Damp Seal and Zinsser Perma White Mould Resistant Paint are also good choices. They resist moisture, steam, and deter mold growth2.

Dulux Trade Mouldshield Fungicidal Matt is another option for indoor walls and ceilings affected by mold or damp. It contains antifungal chemicals to keep mold at bay3.

If you have new or porous plaster surfaces, consider using Dryzone System Mould-Resistant Emulsion Paint thinned with water as normal practice4.

Remember to address the root cause of moisture (such as improving ventilation) to prevent mold from returning. Good luck with your bedroom renovation! ????????????
8th May 2024
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You don't need to remove the plaster you only need anti mould paint, I reckon you get Ronseal anti mould paint
13th May 2024
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