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Cavity Wall TieReplacement


Cavity wall ties are metal strips or rods that are attached into the cavity space between interior and exterior walls to link them together.


These ties are often made of steel and are given a protective coating to prevent them from corroding with the water they are exposed to.

Over time, however, the coating can wear off and the cavity wall ties will start to corrode which can cause serious damage to exterior walls. When trying to assess whether your building has problems with it’s wall ties.

The most obvious signs to look for are:

  • Cracks in the mortar or a slight separation of cross walls. (This is caused by expansion of the wall ties)
  • Outward bulging of the walls. (This is caused by corroded wall ties that have snapped – This is a more serious problem as it can leave your property unstable)

Danford Brewer & Ives will carry out a thorough inspection prior to any repair work being started, in order to evaluate the level of damage and provide the most effective solution. If the cavity wall ties do need replacing, the work carried out will include accessing the existing wall ties by drilling holes into the brickwork and installing the new cavity wall ties. The existing ties will be isolated to prevent further damage.

If you have noticed any of the symptoms of wall tie corrosion mentioned above, please contact Danford Brewer & Ives who will be more than happy to take a look and provide treatment if necessary.

Some surveys involve access equipment and/or removal of masonry, these works and surveys can be quoted for.