Lead window sash weights gain their popularity over steel cast weights due to space saving. Lead is approximately 40% smaller in size than steel, it is non rusting material. Lead counterweights can also be easily cut on site if required and reused for other weights. Our lead window sash weights come with 1 LB, 2 LB, 4 LB & 8 LB; they are designed to facilitate the balancing of window sashes. We produce lead window counterbalance weights for both traditional and modern double glazed units. The variety of sizes provides the flexibility in ensuring the optimal balance is met.