You should pull up and remove weeds by hand as and when they appear. If it is a regular problem, you might need to reseal the paving. In extreme cases, the sub layer itself may need to be re-laid. You can use weed killer, however some paving can be discoloured by stronger weed killers.
Bishop Auckland
Bishop Auckland is regarded as a marketplace town and civil parish in County Durham in north east England. During the Industrial Revolution, the town grew quickly because coal mining took hold as an vital business. The subsequent decrease of the coal mining industry in the late 20th century is blamed for a fall in the town's fortunes in additional areas.