Recently we were hired by a contractor to work on the exterior of a beautiful estate in Brookline, MA. The entryway was graced with a grand limestone pediment. However, above the pediment there was metal roof flashing that when rained upon caused a drip that stained the natural stone. Once the leak was fixed the stain needed to be removed. Enter Boston Stone Restoration.

By utilizing sodium bi- phosphate, a powerful cleaner (don’t try this at home), in varying concentrations we were able to remove the stain! Another happy client!

Before and after:

exterior stone cleaning limestone