Algae isn't just a stain: once it's in the pores of the paving, it comes back even when the surface looks clean.
How to tell
A green or black layer, especially in damp areas with little sun, and a floor that feels slippery or has lost its colour.
Why it appears
Constant damp, no direct sun and porous surfaces. It roots in the pores, which is why it returns.
Why normal cleaning doesn't work
A hose or household products only clean the surface, and it comes back within days or weeks.
How to remove it properly
A specific treatment for your floor, enough time to act, then controlled pressure. Too much pressure damages the floor; too little falls short.
FAQ
Can algae be removed without damaging the floor?
Yes, depending on the material, with the right product and controlled pressure.
Where in Gran Canaria is algae most common?
In damp, shaded areas like Santa Brígida and the highlands, inner patios and north-facing terraces.