Project

Bathroom Leak Repair, Structural Floor Replacement & Vanity Upgrade

Project description

Bathroom leak investigation, structural floor remediation and vanity replacement completed for an Auckland residential property.

The client reported movement and deterioration in the bathroom flooring caused by long-term water ingress around the vanity and wet area.

Although the final floor finish selected by the client was vinyl flooring rather than tiles, we chose to upgrade the flooring structure using H3.2 treated structural plywood to provide a more durable and stable long-term solution.

Scope of work included:

• Investigation of moisture damage and floor movement
• Removal and disposal of rotten flooring materials
• Removal of damaged substrate and affected structural components
• Strengthening and repair of existing subfloor joists
• Installation of additional nogging to improve floor rigidity and support
• Installation of new H3.2 treated structural plywood flooring
• Removal of the existing vanity unit
• Installation of a new vanity and fittings
• Retention of the existing shower and bath to minimise renovation costs
• Installation of new vinyl flooring finish

Rather than simply replacing the visible damaged flooring, the project focused on correcting the underlying structural issues to ensure long-term durability and minimise the risk of future movement or moisture-related problems.

Completed by:
Vanguard Construction Ltd
Licensed Building Practitioner (LBP)
Auckland

Last updated on 09-07-2026