Once secured, the balloon creates a smaller opening that still allows water to pass through while blocking most pests. However, this step is most effective when paired with general moisture control. Keeping the bathroom as dry as possible—wiping surfaces, running ventilation fans, and cleaning around drains—reduces the conditions cockroaches look for. A dry environment makes your bathroom far less inviting to them.
Finally, check for cracks, gaps, or loose areas around pipes, and seal them promptly to prevent roaches from entering through hidden spaces. Together, these simple practices create a stronger barrier against pests and help maintain a cleaner, more comfortable bathroom. With routine upkeep and the balloon method in place, you can significantly reduce the chance of roaches creeping into your shower and enjoy a fresher, more protected space.
