Case Study: Dry fog treatment saved home sale closing

A Webster Groves homeowner was in the middle of selling when mold turned up in the basement. The timing could not have been tighter—appraisers were trying to get in, a title company was waiting on paperwork, and the whole sale depended on the problem being resolved cleanly and quickly.

The seller needed independent lab proof the home was clean to put in front of buyers and their lenders, with zero room for delays or second treatments.

The homeowner reached out to Claro for an emergency treatment. Rather than a drawn-out tear-out that would have blown past the appraisal window, Claro proposed a whole-home dry fog treatment that could be completed in a single visit and verified with a follow-up lab test—exactly the kind of documented, defensible result a real-estate transaction demands.

The basement contained active mold contamination that required immediate professional intervention. Time was the critical factor: every day of delays risked the appraisal deadline and title company paperwork schedule.

Claro treated the entire home environment using its patented dry fogging process, reaching spores and residue throughout the structure—not just visible spots. The homeowner was kept informed in real time throughout the day, and the team had her cleared to re-enter the same afternoon. Claro left warranty paperwork and a thank-you gift waiting at the house.

Two weeks later, the independent lab retest delivered the strongest possible result: "No fungal colonies detected." The home's air was completely clean. The homeowner had exactly what she needed—documented, lab-verified proof of a clean home, backed by Claro's one-year guarantee—and her sale moved forward without a hitch.

This case demonstrates why time-sensitive real estate transactions require same-day professional treatment with documented lab proof. The whole-home dry fog approach ensured the property met all buyer and lender requirements without delays, allowing the closing to proceed on schedule.