Does anyone know of any Imprinted Concrete Pavers or anyone that could give me an Independent Report on the cause of a crack on my drive. We suspect that the installer did not put in sufficient expansion joints but he is ignoring our requests to come out to assess the situation. Before we can take it further we need some confirmation of the cause of the problem and preferably a quote for a repair. I am however finding it difficult to get someone to come and assess this. I am in the Sheffield area if anyone is prepared to help.