How to clean a plaster wall?


A freshly plastered wall gives a facade or an interior a neat and pleasant appearance. But over time with wear or simply the external climatic conditions, somewhat unsightly signs may appear: stains, traces, deposits, etc. In this case, you don’t necessarily want to start all over the plaster again but rather to clean it to remove it all. But how do you clean a plaster wall without damaging it and being efficient? How do you get your wall back to sparkling cleanliness?

Most of the time, a soft brush and a sponge are sufficient to clean a plastered wall.

This is not because your plaster wall, facade or interior, is dirty that you necessarily have to renovate or re-coat it completely. If the dirt is really heavy, you may have to think about repainting or repainting your wall, especially if you are a smoker and the nicotine is deposited there. But if, on the contrary, you stained it due to light splashes or a young child had fun with a pencil, it is enough just to clean it. Here are some tips and tricks to clean your wall and give it a new shine.

How to remove light marks on a plastered wall?

Light soiling can be removed with a sponge, brush and water. Soft bristles are recommended for sensitive walls. Also use a mild cleaning product that will not harm your wall surface. If your plastered wall is in your kitchen, you can use a liposoluble cleaning product specially designed for this purpose. You spray it on the stain or where your wall needs cleaning. And after a few moments – leave to act for several minutes, the dirt can be removed with a sponge. If necessary, special cleaning kits for heavily soiled walls are available from specialist dealers. These include, for example, tools such as small abrasive cleaners to remove stained areas. Advice on what to do: the meaning of your cleaning is important. If the walls are dirty, we recommend that you clean them from the bottom up. Otherwise, dirty water will run over the still dry area of ​​the wall. These traces will then be difficult to remove later.

How to remove more important and stubborn stains from a plastered wall?

If a large area of ​​your wall has been soiled, then the entire wall should be repainted. If the stains are dark, check the opacity level of the paint used because it must be high. If your paint is too transparent, soiled or damaged areas will reappear, even after being painted. So be sure to remove as much dirt as possible before painting. You don’t have to paint and can opt for wallpaper. But with the wallpaper, the singularity of the plaster is no longer visible. So if what you like about plaster is precisely this special aspect, it is better to opt for paint.

If there is a slight buildup of mold on your wall, a large brush and special mold cleaner will help to clean it. You can also use an old toothbrush to brush off dirt in hard-to-reach corners.

If you are bothered by the nicotine that has clogged in the wall, no need to repaint because the traces of smoke will be redeposited very quickly. The best solution in this case is to remove the old layer of plaster in order to remove all the residues.

How to clean a plastered facade wall?

You can clean your wall regularly with a pressure washer (Karcher). Again, use a mild detergent. Since you are outside, this has its importance in relation to respect for the environment. A steam cleaner can also do the trick. It easily removes stubborn dirt and mold from the plaster of the facade. If in addition to dirt, your plaster is also damaged, this requires the advice of a specialist. He alone will tell you if only a cleaning and repair of the damaged area is to be expected or if it is necessary to re-coat your entire wall with plaster. If your wall is crumbly, cleaning is unlikely to be enough. You will need brand new plaster. Find out because you may be able to replace small areas of old plaster with new one where your wall has small damage or cracks.

To summarize, in general, it is rare that you have to completely re-coat your plaster wall. In most cases, no new coating is necessary. Proper tools and cleaning products help remove dirt from your walls. In the case of large amounts of stains, paint or wallpaper may be alternatives.