If required we spray the area with a systemic weed killer a week before the cleaning is carried out. Unlike our competitors our cleaning equipment uses steam and not cold water, the dirty water is sucked up with a large vacuum which prevents your drains from getting blocked. The machines are petrol and diesel driven so even if you are out we can still carry out the work. Once the cleaned area is dry, kiln dried sand is brushed in leaving the area looking as good as new.
See the transformation on the before and after pictures below.
This was removing masonary paint using olivine
The one below was very difficult to clean even with the steam used on it