Cavity Wall Tie Identification & Installation

At Chemfree, we provide professional inspection, identification and installation of cavity wall ties,

helping to maintain the stability and integrity of cavity masonry walls. Cavity wall ties are

designed to connect the inner and outer leaves of a cavity wall, allowing the two sections to act

together while accommodating the movement and construction characteristics of the wall.

 

Over time, older steel wall ties can deteriorate through corrosion, and problems may also arise

where ties are missing, inadequately installed or have failed. Signs that may warrant further

investigation can include horizontal cracking, stepped cracking, bulging or outward movement

of masonry, particularly around openings and at higher levels. However, these symptoms can

have several possible causes, so Chemfree takes a careful approach to inspection rather than

assuming that wall tie failure is automatically responsible. Where appropriate, we can undertake

targeted investigations to establish the presence, type and condition of existing ties and assess

whether remedial work is actually required. Specialist guidance recognises that corroded ties

may require replacement with suitable proprietary remedial wall ties or, where necessary, more

extensive structural remedial work.

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Where defective, missing or significantly corroded wall ties are identified, Chemfree can install suitable remedial ties using an appropriate system for the particular construction and condition of the property. Depending on the circumstances, this may involve carefully positioned replacement ties installed through the outer masonry leaf, with the work designed to provide secure connection between the wall leaves while keeping disturbance to the existing building to a minimum. We believe that wall tie replacement should be proportionate to the actual problem identified, rather than automatically recommending extensive replacement where it is not necessary.

 

Our inspection-led approach allows us to concentrate remedial work on the areas requiring attention, helping to minimise unnecessary drilling, disturbance and materials while still achieving a high standard of workmanship. Where significant structural movement or masonry damage is identified, we will make clear when further assessment by an appropriately qualified structural professional is advisable before remedial works proceed. Our aim is to provide Chemfree customers with a professional, practical and cost-effective solution, combining accurate identification, appropriate remedial systems and competitive pricing without recommending unnecessary work.