Professional advice
Looking after your outdoor spaces.
The questions most often asked of Maison Owlaris about maintaining roofs, façades and terraces in the Nord and Hauts-de-France, with simple, honest answers.
When and how often should you remove moss from your roof?
On average, a roof needs moss removal every 5 to 10 years, more often under trees, on north-facing slopes or near the sea. The best time is spring or early autumn, in dry weather and without frost. An anti-moss treatment applied afterwards slows the return of moss.
ReadCost of roof moss removal: what makes the quote vary
In France, the prices shown by specialist websites range from about €8 to €16 per m² for simple moss removal and from €18 to €35 per m² for a full clean, more with a water repellent. The real price depends mainly on the area, pitch, access and condition of the roof: only a quote after assessment is reliable.
ReadCleaning a wooden deck before applying wood oil
Before applying a wood oil, the wood must be clean, de-greyed if needed and completely dry. Sweep, clean the boards and gaps with a suitable cleaner, rinse, then leave to dry for several days before applying the oil in thin coats, in dry weather and out of direct sunlight.
ReadCleaning your façade: pressure washer, bleach or a professional?
A pressure washer used incorrectly can gouge render, damage joints and let water into the wall. Bleach works on green growth but attacks window frames and plants, and must never be mixed with other products. The right method depends on the surface: suitable pressure, a product chosen for the material, a test on a small area.
ReadRoof cleaning by drone
How it works, when it is possible, what the regulations say.
ReadContact us
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