Natural stone can be quite a challenge to clean as it cannot take extreme pressure from jet washers and should be tackled only by experienced and trained personnell working within professional companies who have knowledge in cleaning this type of product. Natural stone has existed for thousands of years but will last for only a few minutes if cleaned incorrectly. Damage can be irreversible.
Any lost pointing must be replaced as soon as practicably possible and ideally a matching colour to the existing.
There are various methods of cleaning and sealing natural stone so if you have this type of patio or pool surround then give us a call for advice or a quotation to clean it for you.