Qbsa Waterproofing & Tile Injection

Tile Repair in Cairns

Drummy Tile Injection for Commercial Projects

Targeted Repair

Stabilise Loose & Hollow Tiles

Hollow tiles are often the first sign that the bond beneath the surface has failed. In commercial spaces and high-end residential properties across Cairns, floating or drummy tiles can indicate delamination within the adhesive layer, leading to movement underfoot and potential long-term flooring issues. At QBSA Waterproofing & Tile Injection, we provide specialised tile repair injection services designed to address these problems without removing the entire floor. Using controlled drill and fill methods and injectable adhesive technology, we re-bond affected tiles directly to the substrate below.


This approach allows us to treat localised delamination without full demolition, helping property managers and owners maintain continuity of use wherever possible. Whether the issue involves hollow sounding tiles in a retail space or floating sections in a high-end residence, we assess the extent of the failure before recommending a suitable method. If you’re dealing with loose or delaminated flooring in Cairns, contact us on 0416 006 376 to discuss your tile injection options.

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Frequently Asked Questions

  • What causes tiles to sound hollow or drummy?

    Hollow or drummy tiles usually occur when the adhesive bond between the tile and substrate has failed. This can result from poor surface preparation, incorrect adhesive selection, moisture movement or structural movement in the slab. Over time, these factors can create voids beneath the tile, leading to a hollow sound when tapped and movement under pressure. If left untreated, affected tiles may crack or loosen further, particularly in high-traffic commercial environments.

  • Is tile injection a permanent solution for delaminated floors?

    Tile injection can be an effective solution when the delamination is localised and the surrounding floor structure remains stable. The process involves introducing specialised adhesive beneath the tile to restore the bond to the substrate. Its suitability depends on factors such as the extent of the failure, substrate condition and environmental influences. A proper assessment is required to determine whether injection is appropriate or whether broader remediation is needed.

  • Is tile injection suitable for commercial properties?

    Tile injection is commonly considered in commercial environments where downtime and disruption must be managed carefully. It can be used in retail spaces, offices and other high-use areas when delamination is limited to specific sections. Because it avoids large-scale demolition, it may reduce noise, debris and operational interruption compared to full floor replacement. Suitability depends on the floor’s condition, usage and compliance requirements.

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Practical Alternative

Repair Without Full Removal

Traditional floor replacement can be disruptive, time-consuming and costly, particularly in operating commercial environments. Tile injection offers a non-destructive alternative where suitable, stabilising existing tiles through a precise drill and fill process. Small access points are created in targeted locations, and specialised adhesive is introduced beneath the tile to restore adhesion between the tile and substrate.


For commercial flooring contractors and facility coordinators managing premium finishes, this method can reduce downtime and avoid unnecessary waste. It is particularly suited to large tiled areas where isolated sections have delaminated but the overall installation remains intact. Each project begins with identifying the cause of the bond failure to ensure the repair method aligns with the floor’s construction and usage conditions.

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