Our Pavers are like 11 year old. Is it time to seal? Should I do it or not? Got few quotes and most are like $1/sq ft and we have 800sqft. Most of them says uses silica sand and two coats of Ure H20 sealer. I do pressure wash them once or twice a year and weeds grow between cracks and I use my weed wacker. Don’t use any chemicals. Originally by u/tobyskred on Reddit: https://tinyurl.com/2b73lhxk