I used Glass Act to clean and seal new pavers all around our house. They were recommended by a neighbor. Dylan came out to look at our home and explain how they do the work, after which he provided an estimate. I didn't shop around but the price seemed very reasonable. I arranged to have the work done while we were out of town. Dylan was very professional and responsive before, during, and after the job. There were some stains on our front and rear patios after the job was done, and when I asked Dylan about them, he stopped by and explained that the staining was due to the fact that the pavers and underlying concrete were new, and the staining would likely get worse until everything stabilized, after which he would come back and take care of it. I would recommend Glass Act to others, and when the time comes to have our windows cleaned, I'll use Glass Act for that too.