Highly recommend National Sealing Company! My husband and I hired them to coat our newly installed travertine driveway. They were able to remove the well water stains that had accumulated as well as bring out the beautiful natural stone coloring of the travertine. Our driveway and patio have never looked better. Kenny and his team were punctual, honest, and a pleasure to work with. If you’re looking for a reliable and high quality company, do yourself a favor and give Kenny a call.