Pour boiling water down drains daily for several days
Clean drain stoppers, strainers, and overflow openings
Scrub inside drains with a stiff brush to remove slime buildup
Use an enzyme-based drain cleaner to break down organic residue
Fix leaks and eliminate standing water around sinks, tubs, and floors
Empty and clean trash cans, mop buckets, and recycling bins regularly
Remove and clean any clogged or slow drains
Check and clean P-traps and drain traps
Seal cracks and gaps around plumbing and walls
Keep surfaces dry and clean to remove breeding sites
Use sticky traps near affected drains to catch adults
Replace damaged or heavily infested plumbing parts if needed