Ground equipment
Cleaners, brushes and machines suited to each material, to clean without damaging.
I · Cleaning and maintenance
After cleaning, we apply a protective product: moss and dirt come back more slowly.

What for?
Would you like moss and dirt to come back more slowly? A suitable treatment protects your surfaces.
What we do
The exact scope is specified in the quote, after studying your property.
On which surfaces?
How we work
Cleaners, brushes and machines suited to each material, to clean without damaging.
Long poles let us reach the top of walls while staying on the ground.
For a roof or a façade that is hard to reach, the drone avoids scaffolding. We only use it when it is suitable and permitted.
Water-repellent treatment
After cleaning, a suitable treatment makes the result last longer: it limits the return of moss and dirt and reduces water penetration into porous materials. Water repellent, anti-moss or specific protection: the product is chosen according to the surface and its exposure.
The treatment is applied to a clean, dry surface, on roofs, façades, stone and brick, paving and wood. We tell you the recommended maintenance frequency for your property.
Frequently asked questions
An anti-moss treatment limits the regrowth of moss and lichen; a water repellent reduces how much water the material absorbs. They meet different needs and can complement each other.
No, a treatment must be applied to a clean, dry surface to be effective.
How does it work?
Maison Owlaris provides water-repellent and anti-moss treatment throughout Hauts-de-France: around Steenvoorde (Cassel, Hazebrouck, Bailleul), in Dunkirk and Bergues, on the Opal Coast (Calais, Boulogne-sur-Mer, Le Touquet), in Saint-Omer, Lille and Béthune. See the map.
By phone or using the form. You can attach photos.
If needed, we visit the site to see what needs doing.
A clear, no-obligation quote. Then you decide.
Contact us
Call us or write to us: we reply quickly.