If you are considering having the front or back of your house blocked paved, then you need to consider the groundwork preparation first. This can be just as important as having the block paving done itself. If you are trying to find ways of reducing the cost, and one of these is by doing the ground work yourself, you may find yourself paying out more than you initially wanted too. Buying the materials and hiring the proper machinery can be costly enough, not to mention the time it will take for you to complete the work. If the ground work.