
Schaerbeek · 1030
Water-repellent treatment & coating à Schaerbeek
Clear or coloured water repellent for porous tiles and facades. In Schaerbeek nine calls out of ten are about water coming in through the cornice.
7 km from our depot in Grimbergen
What that changes here
On a Brussels roof slope a water repellent adds little: the slopes are small, often in natural slate, and the real leak is in the box gutter. We advise against it here most of the time, and we say so. On the concrete tiles of the post-war districts in Evere or Anderlecht the conversation is different — there it is justified.
Schaerbeek is the municipality of the 1890-1910 town house: tall, narrow facades, ornate cornices, mansard roofs in slate and a box gutter that disappears entirely behind the cornice. Around Josaphat Park and in Terdelt the 1930s are added to that, and their concrete tiles are now reaching the end of their life.
What we get called out for in Schaerbeek
In Schaerbeek nine calls out of ten are about water coming in through the cornice. The town houses there have a box gutter running from wall to wall, often still in lead or in zinc with no expansion joint, with a timber deck underneath quietly rotting. The second most common request is the lower slope of the mansard: slates working loose one after another.
Schaerbeek porte le code postal 1030 et se situe in the Brussels-Capital Region. Notre équipe part de Grimbergen, à 7 km : nous y planifions le traitement hydrofuge en même temps que les chantiers de Evere, Brussels et Molenbeek-Saint-Jean, pour qu’un déplacement serve plusieurs toitures.
- 01Diagnosis
- 02Preparation
- 03Application
- 04Inspection
The full technical detail of this service is on the page Water-repellent treatment & coating.

Two crossed coats on a clean, dry surface, or nothing at all
0492 95 94 94The service in detailAll services in SchaerbeekCommon questions
Pour un devis, la visite à Schaerbeek se fixe en général sous quelques jours ouvrés. Nous partons de Grimbergen, à 7 km, et nous groupons nos visites par secteur : si un chantier tourne déjà cette semaine à Evere ou Brussels, cela peut aller plus vite. En cas de fuite active, nous venons d’abord bâcher et sécuriser ; le traitement hydrofuge n’est chiffrée qu’ensuite.
Applied properly on a clean, dry surface, allow eight to ten years on a roof and five to eight years on a facade exposed to westerly rain. The first sign of wear is easy to spot: the water no longer beads, it spreads out and darkens the material.
The clear product changes nothing about the appearance: it is the default choice, and the only one allowed in a protected area. The coloured product evens out a covering whose colours have drifted after successive repairs. It does not rescue a covering at the end of its life — it disguises it, and we will tell you so.
The same service nearby
Free quote
Water-repellent treatment & coating à Schaerbeek
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.

