Starting researching about a year ago different products that could bring back the color in the pavers that we had around our in-ground pool. Came across National Sealing and contacted them. Right from the start Kenny was very responsive within hours of me contacting them. Since it was later in the year and my location was in Pennsylvania, Kenny asked if I could wait until Spring at a time when he would have several jobs lined up in my area. Without any follow up by me, Kenny contacted me, to check if I was still interested, and gave me a time frame to complete the job. All went as scheduled, no issues. Mark the application tech was great to work with, and did a very thorough job. After the job was completed, Kenny called to check with me the next morning. All in all, great company to work with, everything from on line payments to follow up could not be better.