Over time, all Wall Ties need replacing. Wall ties used to be made from mild steel that had a galvanised layer that does not last, leaving the steel exposed and allowing it to corrode. According to the Property Care Association, these wall ties could corrode within 20 years of construction. If your property is old, then it is recommended that you have your wall checked for failed wall ties.
Brickwork Direct have specialist equipment and endoscopes to examine the condition of your wall ties and identify any potential problems. Visually, it is hard to tell if your wall ties have failed and to what extent. Nonetheless, we have written a guide with 5 ways to identify wall tile failure to recognise any potential issues yourself.