Why this matters for Melbourne properties
This Brick Cleaning article is written for Melbourne owners and managers who need more than a quick blast. Brick Cleaning jobs in our city require a surface diagnosis before any cleaning starts.
In Melbourne, everything from growth corridor new-build mortar smear to inner-suburb heritage brick has its own cleaning risk profile. The right method, chemistry and pressure keep the surface safe and the result lasting.
Iron in the clay reacts visibly
Many cream and buff bricks contain iron oxides that react with HCl, leaving rust-yellow streaks running down the wall — the classic acid burn pattern.
Tannin from timber framing leaches through
When acid wets the wall and timber lintels above, tannin can leach down and stain. Soft-wash detergent systems are usually safer.
Test before you trust
On unfamiliar brick, run a 30×30cm test panel and check 24 hours later in dry weather. Photograph it for the file.