Boric acid is a proven roach killer. Apply a thin layer around pipe entry points or use gel baits inside cracks near the pipes. These substances are toxic to cockroaches but safe for careful household use if applied properly.
4. Seal Entry Points
Inspect pipes, drain openings, and any cracks around them. Seal gaps with silicone caulk or similar materials to prevent roaches from entering through plumbing. Proper sealing reduces the chance of a recurring infestation.
5. Use Boiling Water or Vinegar
Pour boiling water or a mixture of vinegar and water down your drains once or twice a week. This helps eliminate roaches hiding in the pipes and cleans out residue that attracts them.
6. Maintain a Clean Environment
Cockroaches thrive where food crumbs and waste are present. Keep countertops, floors, and garbage bins clean, and avoid leaving dirty dishes in the sink overnight. Regular cleaning discourages them from staying near your pipes.
Pro Tip: If the infestation persists despite these methods, consider calling a professional pest control service to safely and effectively eradicate the roaches.
