Re-caulking bathrooms increases resale value by sealing wet zones against water damage and mold that turn buyers away. Old or cracked caulk signals neglect, while fresh, clean caulk shows attention to maintenance and reduces inspection red flags. This simple DIY fix improves the bathroom’s appearance and longevity, improving buyer confidence. Combined with proper ventilation and updated fixtures, re-caulking ensures the bathroom feels fresh and cared for, directly boosting perceived value and minimizing potential repair requests from buyers.