Cavity Wall Ties

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Call Buildfix on 1300 854 115 or book a FREE inspection today.

Fully licenced and insured, all Buildfix Structural Engineers are registered with Engineers Australia. EA is Australia’s principal engineering association.



Buildfix is a proud member of the Master Builder Association. The MBA promotes high standards and professionalism within the building industry.

Cavity Wall Ties Replacement

If you have cavity walls within your home and you notice your walls are - cracking at the horizontal bed joints, showing rust marks or leaning or bulging - your home may have wall tie corrosion which may require cavity wall tie replacements.

Leaning or bowing wall

Rust marks on wall

Mortar joint expansion

The early warning signs that your home may have rusting cavity wall ties. Read about our recent project

Why should I replace rusted cavity wall ties?

As your home ages, the steel cavity wall ties tying the walls of your home together will begin to rust due to natural processes. The speed of rusting will usually depend on how far your home is from the ocean.


Wall tie corrosion can go on for many years before any signs appear and it is now known that all cavity walls constructed homes built between the 1880s and 2000s will have some form of corrosion. If left to degenerate, wall ties will rust to the point where they effectively snap and become useless. The effects of this can be devastating as walls become free-standing and collapse is a real possibility.


We can offer free wall cavity inspections for homeowners, so if you're in doubt about the condition of your walls, contact us today for a free inspection.


We Promise:


  • Personal, friendly service: we’ll treat your home as if it’s ours

  • Free structural inspections: we come and look at your house for wall tie corrosion for nothing

  • Simple, transparent quotes: our quotes come with easy to understand computer-generated drawings that detail our proposed solution

  • Minimal disruptions to your life: repairs to your walls shouldn’t take more than a day or two

  • Minimal disruptions to your home: we don’t need to knock down walls and rebuild

  • Affordable pricing: unlike many other building companies, we only charge between $2,000 to $10,000 to fix your rusting cavity wall ties

  • Permanent fixes: we’re thorough in what we do, walls we fix will stay fixed

  • 10-year warranty: in the rare case the wall tie faults come back, we’ll be back too, at no extra cost.

Find out more about our processes.

Our wall tie replacement process

Wall tie corrosion discovered by Buildfix showing snapped wall ties.

Buildfix Technician installing a remedial wall tie.

Buildfix Structural Engineer testing load capacity.

Do you have wall tie corrosion in your home?

If you’re concerned about your walls we’d be happy to inspect your house for structural issues at no charge.* We’re here to help.

Call Buildfix on 1300 854 115 or book a FREE inspection today.

* If you reside in NSW, ACT or southern QLD.

Head Office:

259 Darling Street, Balmain NSW 2041

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Copyright © 2019 Buildfix Group Pty Ltd. All rights reserved. QBCC Builders Licence No. 15114268. Contractors Licence No. 294990c. ABN 90 169 195 411

*Locations throughout NSW, ACT & southern QLD.

The Experts in
Structural Repair