Portuguese pavement is beautiful, and treacherous to clean. It is limestone: acid (the "trick" many people use) eats the stone from within and the damage is permanent. We deep-clean it without acids, with neutral-pH detergent and a rotary cleaner that leaves everything even, without the typical "stripes" of a hand-held jet.
Why it is not worth putting off
Moss and green film are not just ugly: they make the pavement slippery, a fall waiting to happen, especially in the rain. And the longer it is left, the deeper the moss gets into the joints and the harder (and costlier) it is to remove.
How we do it
- Neutral-pH detergent, never acid (acid corrodes limestone irreversibly)
- Rotary surface cleaner → an even result, no jet stripes
- Pressure tuned so as not to loosen poorly-set stones
- Optional: anti-moss treatment that delays regrowth for months
Mistakes we see (and avoid)
- Aggressive acid/"stain remover", a quick result today, ruined stone tomorrow
- A high-pressure jet held up close, loosens the stones and leaves stripes
- Bleach, stains and weakens the sand joints
Guide price, no surprisesAlways an invoiceBefore/after photosNo prepayment