Case Study: Upstairs bathroom leak reveals severe mold contamination

A Mt. Juliet homeowner discovered a major leak in their upstairs bathroom—and it had been running for hours before they caught it. Water had soaked into the floor, and they were concerned about what damage might be hiding beneath the surface.

When Claro arrived, the team performed a thorough moisture assessment of the affected areas: drywall, baseboards, and flooring throughout the bathroom and adjacent bedroom. The drywall and baseboards tested dry, but the flooring showed elevated moisture levels.

Rather than rushing into treatment, Claro recommended the homeowner install a dehumidifier to begin drying out the floor, then conduct air quality testing to understand the true scope of the problem. Tests were taken in the upstairs bathroom, bedroom, and living room downstairs.

The results were alarming. The bathroom showed Penicillium/Aspergillus levels at 130,000 spores per cubic meter—extremely elevated compared to the living room's 2,100 spores. The leak hadn't just created a moisture problem. It had created a serious mold contamination issue that was now affecting indoor air quality.

With clear data in hand, Claro performed a whole-home dry fog treatment. The EPA-certified process addressed the bathroom contamination at its source while also treating the rest of the home to eliminate any spores that had spread through the air.

This case demonstrates why proper testing matters. Without air quality analysis, the homeowner might have simply dried the floor and moved on—leaving behind dangerous mold levels that would have continued affecting their family's health and home environment.

Smart remediation means testing first, understanding the problem, then treating it right. That's how you get results that last.

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