Cavity Wall Tie Replacement

Coastal Wall Ties are specialists in cavity wall tie replacement and are based near Worthing, West Sussex carrying out work in and around Sussex and Hampshire. We take great pride in our work and are known for our high quality of making good, often amazing customers with how well we match brick colours and mortar colours after installing the new wall ties, Our quotations for wall tie replacement are Free and highly competitive and all our wall tie replacement work comes with a 25  year Company guarantee and we are also able to offer an optional Insurance Backed Guarantee.

We generally use mechanical stainless steel wall ties, however depending on the property other types of tie may be required.

What are cavity wall ties and why are they used?


An old cavity wall tie expanding within the mortar joint.

The purpose of a cavity construction is to prevent water penetration unlike the traditional solid nine inch masonry wall by splitting it into two leaves of 4½ inch brick, linked with metal ties. Cavity wall ties are laid out in a uniform spacing pattern: a diamond formation with ties at 900mm centres in courses set 450mm apart. At door and window openings the spacing is reduced to 300mm vertically.

The most common wall tie used is mild steel and the commonest manufactured forms are the fishtail or vertical twist ties (either galvanised or bitumen coated) and the galvanised butterfly wire tie.

All mild-steel ties are susceptible to corrosion over time. Because the service life of the masonry is much longer than that of the mild steel at some point in its life the wall may need replacement of the wall ties.

Cavity Wall Tie Failure

Prior to wall tie replacement

A property in West Sussex with wall tie failure prior to wall tie replacement.

Problems with corroded wall ties have become extremely common to properties in the UK. The corrosion of wall ties can seriously affect the structure of a building. Over time mild steel wall ties expand and corrode forcing apart the bricks above and below the bed joints in which the cavity wall ties are laid (this can be up to 7 times it’s original size), producing a pattern of horizontal cracks coinciding with the tie position. It is important to treat the symptoms of wall tie failure as in some cases walls will bow and could collapse due to external forces.

To find out whether your property needs wall tie replacement call us today for a Free Quotation and report.

Our Wall tie replacement service comes with a 25 year Company Backed guarantee and we offer a Insurance Backed Guarantee. The work carried out is performed by experienced technicians and conforms with industry standards.

For a Free No Obligation Quote contact us today on 01903 713053 or 07513 345231, send us a message or email us on