Granite Setts are becoming one of the most popular forms of block paving, originally all block paving was made of cobble setts of natural stone and over time we have learned how to man make a similar product, now the trend is going back to natural stone again. NW Driveways is one of the premier Tarmac driveway companies in the North West area, our tradesman have been laying Tarmac for nearly 30 years so we consider ourselves a Tarmac specialist. Above is an example of Marshalls Argent block paving, this style of block paving gives the traditional look of cobble setts but comes at a massively reduced price compared to genuine cobbles or granite setts.