Pavers can be installed directly on top of concrete. However, there are a few things to keep in mind. First, the surface of the concrete must be clean and free of any debris or dirt. Second, the concrete must be in good condition and free of any cracks or holes. Third, you will need to use a bonding agent to ensure that the pavers stay in place. If you have any questions about installing pavers on top of concrete, contact Gresham Concrete Contractors today. We would be happy to help you select the perfect pavers for your project.