Discoloured grout is very common on stone tiled floors over time. Dirt soil grime and grease builds up collects causing the grout to darken and discolour. This is the grout is porous and absorbs easily. We can clean restore your grout lines to their original  look. We will then seal the grout  for protection to help against further staining and soiling. Your grout lines will then be rejuvenated.