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After a long-term bathroom leak had been repaired, lifting part of the lino revealed black mould beneath the floor covering and under the bath, together with mould mites. The full extent had not been exposed before the visit, so the response focused on the affected bathroom area that could be accessed and treated.
Ideal Response attended the Gillingham property on 5 July 2024. The affected lino was removed for disposal, exposing the underlying area so that a targeted mould-remediation treatment could be carried out in a single attendance.
The agreed bathroom remediation was completed during one attendance. The affected lino was removed for disposal and the newly exposed surfaces were taken through the specified treatment sequence following repair of the original leak.
This project shows why mould beneath a floor covering cannot always be approached as a simple surface-cleaning problem. The visible signs may represent only the accessible edge of the affected area. Removing the covering allowed the remediation to be directed at the surfaces beneath it rather than treating only what could initially be seen.
Repairing the source of moisture was an essential first step, but it did not remove mould that had developed while the leak was active. In this bathroom, the contamination was concealed beneath the lino and around the bath rather than limited to an exposed wall or ceiling.
Removing the affected floor covering therefore formed part of the remediation itself. It created direct access to the underlying surfaces and allowed the treatment to be applied where the mould had developed, rather than only to the visible edges of the affected area.
Once the affected area had been exposed, the bathroom was taken through the specified four-stage treatment sequence:
Concealed mould can change the scope of a remediation once finishes are lifted. Where contamination sits beneath flooring or around fixtures, gaining direct access to the affected substrate can be just as important as the treatment itself.
“Where mould has developed beneath a floor covering, access is a critical part of the remediation. Removing the covering allows the affected substrate to be treated directly rather than relying on treatment of the visible edges alone. The important point is to match the remediation to the surfaces that are actually affected.”


The before and after of the bathroom in Gillingham following a case of severe mould discovered on the floor.
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