Most brick pavers are reclaimed Chicago brick pavers or Colombian clay pavers. Depending on how they are installed, most will benefit from deep cleaning and sealing. If it is a sand set install, sanding the joints will aid in ease of maintenance. Although unusual, we have ground a couple brick installations flat, as you can see in the pictures, to make it more manageable for the customer not only for cleaning, but also for little things like sliding chairs across the floor.