Homeowners with concrete surfaces should make sure to routinely clean and maintain them. If not, stains and chemicals can set and cause damage to the surface. Over time this can erode the concrete from the inside and it will deteriorate. If you have a stain that won’t come out, contact a Providence, Rhode Island concrete contractor. They can inspect your concrete and know which type of chemical is best to use to remove the stain but not cause damage to the concrete. There are pH-neutral cleaners, alkaline cleaners, acid cleaners and enzymatic cleaners. Contact a Providence concrete company and they’ll determine the best method for cleaning your concrete.