Here we answer the questions facility and property managers ask: what facade cleaning costs, which method suits which surface, when cleaning solar panels pays off and which permits drone cleaning requires. We write as neutrally as we can, with a source for every figure, and we say so plainly when we describe our own approach.
Bleach and washing soda sit in most cupboards and look like a cheap fix for a green facade. What they do to stone, joints, metal and plants, why never to mix bleach, and what to use instead.
27 September 2026 · 5 min read
A drone photographs facades, roofs and solar panels at close range. What visual and thermal inspections show, where their limits are, and when to send someone up in person.
27 September 2026 · 5 min read
What happens when a drone cleans your windows or facade: how water and product reach the drone, what the pilot does on the ground, which authorisation is needed in Europe and where the limits are.
27 September 2026 · 4 min read
High pressure can wear away soft stone, brick and mortar joints. Here are the gentler methods, from low-pressure rinsing and misting to steam and poultices, and what each can do.
27 September 2026 · 4 min read
There is no fixed interval for cleaning solar panels. We explain how tilt, surroundings, season and panel type play a part, and how to decide using your own data.
27 September 2026 · 5 min read
Pure water window cleaning uses tap water stripped of almost all dissolved minerals. How reverse osmosis water is made, why it leaves glass spot-free and how it differs from deionised and distilled water.
27 September 2026 · 4 min read
Dirty solar panels do lose output, but in a rainy climate usually less than is often claimed. What the studies say, where cleaning pays off and how to check your own installation.
27 September 2026 · 5 min read
In soft washing, a product does the work and a low-pressure rinse carries the dirt away. Which products are used, which commercial facades it suits and where its limits lie.
27 September 2026 · 4 min readIn a 30-minute call we look at your building and what drone cleaning or inspection could do for it.
