
Woluwe-Saint-Lambert · 1200
Water-repellent treatment & coating à Woluwe-Saint-Lambert
Clear or coloured water repellent for porous tiles and facades. In Woluwe-Saint-Lambert two types of job alternate: the flat roof of an apartment block, with a general meeting, a managing agent and a schedule spread over several months, and the slope of an interwar house, where one call and one visit are enough.
10 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.
Woluwe-Saint-Lambert combines wide avenues lined with blocks from the 1960s and 1970s with, in the side streets, interwar houses. For us that means alternating between the large flat roofs of jointly owned blocks and the ordinary slopes of single-family houses.
What we get called out for in Woluwe-Saint-Lambert
In Woluwe-Saint-Lambert two types of job alternate: the flat roof of an apartment block, with a general meeting, a managing agent and a schedule spread over several months, and the slope of an interwar house, where one call and one visit are enough.
Woluwe-Saint-Lambert porte le code postal 1200 et se situe in the Brussels-Capital Region. Notre équipe part de Grimbergen, à 10 km : nous y planifions le traitement hydrofuge en même temps que les chantiers de Kraainem, Evere et Wezembeek-Oppem, 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 Woluwe-Saint-LambertCommon questions
Pour un devis, la visite à Woluwe-Saint-Lambert se fixe en général sous quelques jours ouvrés. Nous partons de Grimbergen, à 10 km, et nous groupons nos visites par secteur : si un chantier tourne déjà cette semaine à Kraainem ou Evere, 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.
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.
On a porous brick or render, yes, and it is often the cheapest way to stop damp coming through a west-facing gable. The condition is the same: a clean, dry surface, and the cause dealt with first — an overflowing gutter, for example.
The same service nearby
Free quote
Water-repellent treatment & coating à Woluwe-Saint-Lambert
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.

