Repairing Stone Window Sills Verified Link

With patience, the right materials, and a respect for traditional methods, repairing a stone window sill is a rewarding weekend project. It preserves the character of your home, stops water damage before it rots your window frame, and costs a fraction of replacement. Work slow, keep it damp, and your repair will outlast the rest of the house.

Stone window sills are the unsung heroes of a building’s facade. They bear the brunt of wind-driven rain, support the weight of the window above, and frame the view from within. Over time, however, even the hardest limestone, sandstone, or granite will succumb to the elements. Spalling (flaking), cracking, and general decay are common problems.