Facade Cleaning & Gentle Restoration in Nouvelle-Aquitaine

Why clean your facades regularly in Nouvelle-Aquitaine?

Your facade is a direct reflection of the condition of your home. Constantly exposed to the weather, atmospheric pollution and moisture, it inevitably deteriorates over the years. In Nouvelle-Aquitaine, the proximity of wooded areas and waterways makes this worse by encouraging micro-organisms to spread.

The marks that appear on your outside walls aren’t just unsightly — they’re a sign of physical damage to the surface:

• Red or orange staining: Microscopic algae (often of the Trentepohlia species) that develop with moisture, mainly on facades exposed to prevailing rain-bearing winds.
• Black or grey staining: Caused by atmospheric pollution, fumes and industrial dust that settle into the natural porosity of the render.
• Green staining: Moss and micro-lichen that hold water against the wall. If left untreated, this biological grime eventually colonises the render in depth. Its roots cause micro-cracks that let water in. During frosts, this trapped water bursts the surface of the render, hastening the need for heavy, costly masonry restoration work. Gentle, regular cleaning lets you space out this kind of work by several years and adds value to your property.

Tailored facade cleaning that respects your surfaces

Every type of wall needs a specific technique. Overly aggressive high-pressure cleaning would strip the surface layer of the render, making it even more porous and prone to rapid grime build-up. At Aquit’n Nettoyage, we carefully adapt our method:

• Delicate render finishes (monolayer, sprayed, floated): We favour low-pressure cleaning combined with a biodegradable bio-cleaning treatment, or gentle steam cleaning (100°C). The heat lifts grease and soot and destroys algae without any mechanical aggression to the render’s texture.
• Natural or dressed stone: An iconic material of our region’s heritage (such as Bazas limestone or the old brick of Agen), it needs very gentle micro-abrasive cleaning or careful brushing followed by a controlled-pressure rinse, so as not to disturb its historic patina.
• Industrial facades and metal cladding: We use targeted degreasing and cleaning solutions, applied with telescopic poles or by drone for greater heights.

Applying an anti-moss and waterproofing treatment

To keep your facade clean long-term, we don’t just wash the surface. After physically cleaning the walls, we apply a professional-grade, long-lasting curative algicide and fungicide treatment. This product eliminates embedded plant roots deep within the render and prevents airborne spores from germinating.

We also offer application of a clear facade water-repellent. This treatment penetrates the thickness of the render and makes it fully waterproof while still letting it breathe. Water then slides off the facade, carrying away surface dust as it goes (a natural self-cleaning effect), preventing moss and red algae from taking hold again. Contact us for a diagnosis and a free quote for facade cleaning in Nouvelle-Aquitaine.