CavityTech Systems Ltd provide wall tie replacements throughout the South East. If your cavity wall tie is failing, our fully trained and highly experienced surveyors have a range of solutions to solve the problem. We will recommend the most suitable structural repair for your property type and the construction, as well as providing a written report / specification for the work to be carried out.
Since the beginning of the 20 Century, cavity walls have been used to offer better protection from the elements and reduce the amount of heat loss through the external perimeter walls. The construction comprises of two walls separated by a cavity. These walls are ‘tied’ at strategic intervals using various forms of wall tie, commonly made of metal and often coated in bitumen or zinc.
In the 1980’s it became apparent that the wall ties deteriorated much quicker than anticipated leading to Cavity Wall Tie Replacements being required. According to the BRE, ten million homes in the UK may already have this problem yet to be diagnosed.
There are many issues associated with failing cavity wall ties, from horizontal and stepped cracking of the masonry / mortar joints, bulging of the walls and possibly an insufficient number of originalities installed. Cavity wall tie replacement can prevent the need for future major rebuilding works.