A cleaner patio with less guesswork
Biological growth treated
We deal with moss, algae, lichen and black spot in a way that suits natural stone paving.
Joints and drainage considered
The cleaning method is shaped by the condition around the paving, not just the slab face.
Sealing only when ready
Protection is discussed after the patio has been cleaned and has reached a suitable dryness.
Bring back the look of natural stone paving
Patios can lose their original look under layers of algae, moss, lichen, black spot, organic staining and ingrained dirt. We clean sandstone, limestone, slate, travertine, granite and other natural-stone paving using a method that suits the surface rather than blasting at it blindly.
Stone type, joint condition, drainage and the severity of biological growth all shape the process. The aim is to clear what is obscuring the patio's natural appearance without creating avoidable damage around the paved area. With Natural Stone Cleaning Ltd, exterior restoration starts with what the stone can safely take and what the paving actually needs.
Cleaning, drying and optional sealing
If sealing is the next step, the patio needs to be properly cleaned and suitably dry first. We prepare the surface with that in mind and explain when protection is worth considering for the paving you have.
After the work, we also give practical aftercare guidance to help slow the return of organic growth and preserve the restored look for longer. Customers using Natural Stone Cleaning Ltd get a patio treatment planned around the stone outside your property, not a one-size-fits-all exterior wash.
Frequently asked questions
Can you remove black spot from natural stone patios?
We can treat black spot and other stubborn biological growth as part of the patio cleaning process. The method depends on the stone type, the spread of the growth and the condition of the paving. We assess those points first so the treatment is controlled and suited to the surface.
Is patio cleaning the same as pressure washing?
Not always. Some patios need more than straightforward pressure washing, especially where biological growth, staining, joint condition or sealing need extra attention. We choose a process that suits natural stone paving, which may include pre-treatment, careful cleaning, rinsing and discussion of follow-on protection.
Will sealing stop the patio getting dirty again?
Sealing can help limit absorption and make ongoing care more manageable, but it does not make a patio maintenance free. Organic growth can still return over time. We explain when sealing is likely to help and what aftercare will support the restored appearance once the patio is back in use.