How to Assess Possible Mould in Carpet Safely

Note where marks or persistent damp/odour occur, when they began, any leak or flooding history and what products have already been used. Take photographs without pulling carpet, underlay or flooring apart. These facts help a building or carpet professional decide what should be checked.

A surface mark does not identify the organism, extent or moisture source, and a lack of visible growth does not prove concealed areas are unaffected. Do not treat odour alone as a diagnosis or use a home test as a substitute for an appropriate inspection.

NSW Health’s mould factsheet (last updated 20 December 2022) notes that mould may grow on carpets and that absorbent carpet may need professional cleaning or replacement if contaminated. See its mould guidance for the NSW context and check current local health information.

Persistent moisture or suspected hidden contamination may need a qualified building/moisture or carpet assessment.

Avoid pulling up carpet, sanding, spraying or layering products while the source and extent are unknown. Addressing a leak or damp source is separate from cleaning a surface. A qualified provider can assess safe scope and whether carpet, backing or underlay needs specialist attention.