For that reason, pest control professionals focus on prevention rather than temporary fixes. Sealing cracks around pipes, repairing leaks, improving ventilation, and keeping the bathroom clean are all far more effective long-term solutions than simply covering a drain. Regular drain maintenance also helps reduce organic buildup that can attract insects and contribute to unpleasant odors.

In more serious situations, professionals inspect the entire home to identify hidden entry points, since pests often use multiple routes rather than relying on a single drain or opening. Addressing the full system is far more effective than treating one visible access point.

While the balloon trick may seem clever in online videos, lasting protection comes from understanding and eliminating the conditions that allow pests to enter in the first place. Consistent maintenance, attention to moisture control, and fixing the root cause will always provide better results than relying on quick shortcuts.