We had our driveway and patio done by Patterned Concrete 26 years ago. They had been sealed over the years but the layers of sealant had washed out the colour. I recently had Patterned Concrete come in and strip the layers of sealant from both my driveway and patio and after re-sealing, the results make them both look brand new. I'm not kidding about this. The quality of their initial work 26 years ago has stood the test of time. We all know that finding good trades is next to impossible these days, but unlike MANY out there, these guys know what they're doing. I have recommended them many times over the years and will continue to do so.