
Facade water repellent
in Genval
Organised around its lake, Genval brings together older villas, holiday houses turned into main homes and recent builds. Cleaning, then water-repellent impregnation of the brick or render: water beads off instead of soaking in, the facade dries and stays clean for longer.

BeforeAfter
The context in Genval
Why here in particular
What changes in Genval is the context: holiday villas, exposed timber, roofs with deep overhangs, verandas. The damp off the water and the timber roof overhangs call for particular attention to the exposed roof timbers.
A late-nineteenth-century Belgian brick literally drinks the driving rain from the west. The water passes through, comes out as saltpetre inside, and in winter it blows the surface apart.
- Quote
- Priced after a site visit, free of charge and with no obligation.
- Duration
- 2 to 4 days depending on the surface area and the weather.
- Call-out
- Included in Genval and neighbouring municipalities
How it runs
How the job runs
The same protocol everywhere, adapted to what the visit reveals on site. Nothing is decided from the pavement.
- Documented absorption test
- Low-pressure cleaning
- Anti-moss treatment
- Spot repointing
- Colourless water-repellent treatment with a beading effect
- Protection of window frames and surroundings
Diagnosis
Absorption test, condition of the joints, mapping the cracks.
Cleaning
Low pressure, plus anti-moss treatment where the facade is green.
Repairs
Repointing where the joints have eroded and treatment of the hairline cracks. A water repellent over an open joint is pointless.
Drying
48 to 72 h. That is the part we do not shorten.
Impregnation
Applied to saturation, from the bottom up, in two crossing passes.
Frequently asked questions
Facade water repellent in Genval
The questions we get asked most often before this kind of job.
Does that solve a damp problem indoors?
If the damp comes from driving rain, largely yes. If it rises from the ground by capillary action, no: that is a different treatment and we say so.
And on a facade that is already painted?
The impregnation no longer penetrates. What you need then is a breathable mineral paint, not a water-repellent treatment.
Is scaffolding needed?
For two storeys, a platform or a mobile scaffold is often enough. That is costed separately and stated up front.
Do you come out to Genval with no extra call-out charge?
Yes. Genval is one of our 17 municipalities: the call-out is included in the quote, not added at the bottom of the invoice.
Other work in Genval
While we are on site
Combining two jobs in one visit brings the invoice down. We suggest it when it makes sense, never to pad the quote.
Facade water repellent in the neighbouring municipalities
All our work in Genval · Everything about facade water repellent
Facade water repellent in Genval: let’s talk about it
On-site visit, detailed costing within 48 working hours, with no obligation on your part.
