
Wet bluestone patios become extremely dangerous from algae growth and surface smoothing. Our professional anti-slip treatment and biological cleaning makes bluestone safe without changing its appearance — a critical safety upgrade for families and pool areas. Algae and biological growth create an invisible, extremely slippery film on wet bluestone surfaces. Polished or worn bluestone also has naturally reduced traction when wet. The combination is a serious fall hazard. We deep-clean all biological growth from the bluestone using professional biocidal treatment and pressure cleaning. We then apply an impregnating anti-slip treatment that significantly improves traction on wet bluestone without changing its appearance or colour.
Foot traffic and everyday cleaning can gradually reduce the stone's natural appearance.
Foot traffic and everyday cleaning can gradually reduce the stone's natural appearance.
Foot traffic and everyday cleaning can gradually reduce the stone's natural appearance.
Foot traffic and everyday cleaning can gradually reduce the stone's natural appearance.
Foot traffic and everyday cleaning can gradually reduce the stone's natural appearance.
Foot traffic and everyday cleaning can gradually reduce the stone's natural appearance.

Remove dirt, grime, stains, mould and everyday residue from indoor and outdoor limestone surfaces.

Remove dirt, grime, stains, mould and everyday residue from indoor and outdoor limestone surfaces.

Remove dirt, grime, stains, mould and everyday residue from indoor and outdoor limestone surfaces.

Professional cleaning, honing and restoration for indoor limestone flooring.

Professional cleaning, honing and restoration for indoor limestone flooring.

Professional cleaning, honing and restoration for indoor limestone flooring.


We use two approaches depending on the cause: if slipperiness is from biological growth, we treat and clean the biological matter then apply an anti-biological sealer. If the stone surface is inherently smooth, we can hone it to a slightly textured satin finish that dramatically improves traction, or apply an impregnating anti-slip treatment.
Our preferred impregnating anti-slip treatment works inside the stone and does not change its colour, appearance or texture visibly. If honing is used to improve traction, the surface changes from smooth to lightly textured — still very attractive but with significantly better grip.
Yes — algae on wet bluestone creates an extremely slippery surface posing a significant fall risk, particularly for children and elderly. Algae should be treated as a safety issue and addressed promptly, especially around pools, steps and entry areas.
Annual professional cleaning and resealing with an anti-biological sealer significantly reduces algae regrowth. Improving water drainage and light access also helps. In shaded, persistently damp areas, cleaning every 6 months may be necessary.