Paving & Patio Cleaning in Gloucester, Cheltenham, Stroud and The Cotswolds
Pressure washing will often damage the pointing between slabs and remove the sand from block paving, which will need to be replaced at further cost. Low pressure soft washing will effectively clean the surface removing stains that pressure washing will not touch.
The lichen will die and fade to a white if there is any present. This will then lose its adhesion and simply come off over a short period of time.