How do you remove moisture stains from the wall?

There's nothing more annoying than being confronted with the facts and seeing that you have moisture spots in your wall.

Don't worry, there's a solution for everything. However, it is important to find the cause of the moisture spots before you can start removing them.

Cause of moisture spots in the wall

The word says it itself. Moisture is caused by moisture. Moisture can get through:

  • rainwater (e.g. wall that has been exposed to rain for a long time);
  • clogged gutter;
  • direct contact between brick wall and damp wall;
  • condensation.

Moisture removal

Moisture spots disappear automatically after a professional has taken the necessary steps to solve the moisture problem.

The first thing you have to do is to contact a professional who will solve your moisture problem. Only then can you repair your wall yourself. If you still want to get to work yourself, here are a few useful tips:

  1. Tackle the cause of the damp wall. If you suffer from rising damp, first make sure that the source of this moisture problem is drained using, for example, wall injections. This involves injecting a new water barrier layer. Ask here for a free moisture diagnosis for a first thorough analysis.
  2. Remove the wallpaper or remove the paint from your wall with a putty knife.
  3. Apply a moisture repellent, e.g. Aquaplan.
  4. Do you have cracks? Fill these up with putty.
  5. Make sure your wall is not soaked and then apply three layers of moisture-resistant coating.
  6. When everything is done and the wall is dry, you are ready to wallpaper or paint the wall again.

Attention! The instructions above will help you to remove moisture stains from your wall and not to conjure up mold. It is best to kill fungi with chlorine bleach. After the fungi disappear, rinse the chlorine away with warm water.

Prevent moisture spots for the future

In order to never have to read blogs like this again, the following tips come in handy...

Facade exposed to rainwater for too long

Did you get moisture problems because the rainwater came into contact with the facade for a long time? Then provide a layer of hydrofuge.

Hydrofuge? What beast is that?

Hydrofuge is a product that makes your outer walls water-repellent. The result is that you no longer get moisture spots on the inner wall.

Gutter clogged or leaking

A gutter ensures that when it rains, the water can drain through the drainpipe. If you don't have a gutter, the water flows down along your facade and you have the problem that your facade is exposed to rainwater for too long.

Moisture problems can therefore also be the result of a clogged gutter. Unfortunately, the blockage does not go away by itself, but only gets worse. By the way, a blocked gutter is worse than having no gutter at all, because in the event of a blockage a large amount of water accumulates in one place.

Unplugging your drainpipe and maintaining your gutter is the message. You can do this simply by taking a ladder and removing all the leaves in it. Especially in autumn this is important.

Excessive moisture

Excessive moisture is caused by direct contact between a brick wall and a moisture-containing wall. Why then would you think there is direct contact? Normally there is no direct contact.

When there is rising damp, it means that a water-repellent layer is missing, causing moisture to get into the cavities.

The solution? Waterproof the outer wall by injecting a chemical product into the wall. Leave this to a professional and discover more about this technique here.


Somewhere where the air is too humid (think of a bathroom), condensation will form. And this too can cause moisture problems. In such places sufficient ventilation is the solution. You know what to do in the bathroom!

You'd rather avoid moisture problems, but if they're there, they'll just have to leave. Period. Unfortunately, solving and removing moisture problems isn't exactly the job that's done this way. That's why Aquaconsult offers you a support you say 'you' to.

Looking for more information around moisture control? Then be sure to read our blog on moisture problems and solutions.