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    Email: crs.builders@hotmail.co.uk

  • Wall-Tie Replacement

  • Cavity Wall Ties are metal ties that span a cavity wall designed to strengthen the wall and tie the internal and external skin together. In modern newly built properties these are now made of stainless steel, which are extremely resistant to corrosion; but, in older properties, the ties used were often mild steel and were far more susceptible to rot.

    When metal corrodes it expands by several times its original thickness and on older buildings the part of the wall-tie fixed between the brick courses of the outer skin that are subject to the wet British weather can corrode and expand. If left unchecked this can cause serious structural weakness and in very severe cases can lead to collapse, as experienced during the hurricane of 1987 with many outside walls collapsing.