For the best possible results, it is best to hire a professional to install and seal your pavers. The majority of the work lies in preparing the paving stone floor, and when it comes to sealing, you need a high-quality pressure washing machine. You need to clear the area of dirt and debris, and prepare the base material and sand bedding before laying the pavers down in the desired pattern. Then it is necessary to sweep sand over the paver joints before applying the sealant. As there is skill, expertise, and machinery involved in laying and sealing pavers, it’s best not to DIY.