I live in Southern California. The driveway has (2) rows of brick ribbon that do not look very good. Some chiped/discolored from water. (I guess I have to replace those) but I don't want to replace the whole driveway. The driveway has a couple of minor cracks, but not bad. (I have a 3 car garage). Is this easy job or does it require a pro? Any idea's will be appreciated. Thanks