NJS Sash Windows

A rotted window sill is one of the most common problems found on older timber sash windows, especially on period homes, listed buildings and traditional British heritage properties. Over time, rainwater, failed paint, cracked putty and poor maintenance can allow moisture to get into the timber. Once the wood starts to soften, split or crumble, the damage can spread into the lower sash, window frame and surrounding timber. At  NJS Sash Window Repairs , we repair rotted window sills, rotten timber sash windows, damaged frames and traditional wooden windows across  Stamford, Peterborough, Rutland, Cambridgeshire and surrounding areas . What Causes a Wooden Window Sill to Rot? A wooden window sill is exposed to more weather than almost any other part of a sash window. Rain sits on the sill, paint breaks down, and water can slowly work its way into the timber. Common causes of rotten window sills include: Old cracked paint Failed putty around the glass Open joints in the timber Poo...