I hired pro seal last year to remove weeds, resand and seal my large paver driveway and backyard patio. Weeds reappeared in a small portion of the driveway about the year later due to a location of a tree. I sent the company a note as they warranty their work. They came back with no questions asked and redid the full driveway for us. Very impressed with their customer service and would recommend and use them again. Thanks Randy!