Cleaning & Sealing concrete will help keep the color locked in. Sealers have protection from UV rays, which fade the colors in stamped concrete. Once a sealer wares off, usually in a few years, your concrete looses the protection. Once the sealer wares off, it leaves your concrete very porous and susceptible to staining. A sealed concrete driveway, patio, pool deck or walkway will look the best for many years.
Another important reason to clean & seal your concrete is protection from freeze thaw spewing or breaking. We use a sealer that will make your concrete water resistant. This prevents water from entering the pores of the concrete and expanding during freezing temperatures. Here in Minneapolis & St. Paul this is very important. Speaking of Minnesota weather, cleaning & sealing your concrete will also protect it from salt damage.
We always use a chemical free method of removing old or failing sealer. We typically media blast your concrete using dry ice as the media. Dry Ice Blasting