
Forest · 1190
Damp treatment à Forest
Diagnosis and treatment of rising damp, penetrating damp and condensation. In Forest every quotation starts with access.
14 km from our depot in Grimbergen
What that changes here
In a Brussels terraced house damp comes from three sides: from above through the box gutter, from the side through the party wall, and from below through rising damp in the cellar. We only treat what comes from the roof, and we say so when the cause is elsewhere — paying for a facade treatment because of a leaking box gutter is the classic mistake.
Forest is built on a slope, and it shows on the roofs: tall houses from the 1920s and 1930s, a lot of Art Deco around the Altitude Cent, and a low, industrial part down towards the canal. The differences in level make scaffold access the first question on every job.
What we get called out for in Forest
In Forest every quotation starts with access. On the slope of the Altitude Cent the houses are tall and the front gardens narrow; putting up a scaffold there needs a road occupation permit and sometimes a parking ban. After that comes the ordinary work: box gutters, slates and 1930s dormers.
Forest porte le code postal 1190 et se situe in the Brussels-Capital Region. Notre équipe part de Grimbergen, à 14 km : nous y planifions le traitement de l’humidité en même temps que les chantiers de Uccle, Anderlecht et Ixelles, pour qu’un déplacement serve plusieurs toitures.
- 01Measurement
- 02Diagnosis
- 03Treatment
- 04Follow-up
The full technical detail of this service is on the page Damp treatment.

First establish which of the three causes is at work
0492 95 94 94The service in detailAll services in ForestCommon questions
Pour un devis, la visite à Forest se fixe en général sous quelques jours ouvrés. Nous partons de Grimbergen, à 14 km, et nous groupons nos visites par secteur : si un chantier tourne déjà cette semaine à Uccle ou Anderlecht, cela peut aller plus vite. En cas de fuite active, nous venons d’abord bâcher et sécuriser ; le traitement de l’humidité n’est chiffrée qu’ensuite.
Then no injection will change anything. Condensation is a matter of ventilation, heating and thermal bridges. We tell you so, even if it means we have nothing to sell — it still costs you less than a pointless treatment.
By its height and its regularity: a horizontal band eighty centimetres to over a metre high, even along the whole length of the wall, often with salt efflorescence and plaster coming away. If the stain appears after rain and sits higher up, it is penetrating damp.
The same service nearby
Free quote
Damp treatment à Forest
We come out, we go up onto the roof, we photograph. The quotation follows within 24 working hours, item by item.
Not sure about your roof?
The visit costs nothing and the quotation follows within 24 hours. One call is enough to know where you stand.

