Pressure washing.
No chemicals are used in this process except on any stubborn stains like oil left from cars.
Ideally a systemic weed killer should be applied to the area a week before the cleaning is carried out.
Systemic weed killers kill the roots of the weed so hopefully they don’t come back as quickly.
Cleaning block paving does take time and when clean and dry the blocks can be re-sanded using the proper kiln dried sand which is brushed in.
Do not let anyone clean your block paving and re-sand it whilst it’s wet, as the sand sticks to the blocks and cannot drop between the gaps like it should.
Go to our main pressure washing page here www.kdmasterclean.co.uk/pressure-washing-dudley-stourbridge-halesowen/