Cockroaches in Korea
The #1 household pest in Korean apartments. Here's how to handle them.
Why Korean apartments get cockroaches
- β’ Shared pipe systems between units β they travel through drains
- β’ Warm ondol (floor heating) creates perfect breeding conditions
- β’ Dense apartment buildings = easy spread between floors
- β’ Hot, humid summers (JuneβAugust) = peak activity
DIY solutions (mild cases)
Gel bait (most effective)
Daiso or Coupang, β©3,000β8,000. Place dots under sink, behind fridge, near pipes. Replace monthly.
Boric acid powder
Sprinkle in cracks and behind appliances. Keep away from pets.
Seal entry points
Caulk around pipes, drains, gaps in walls. Use drain covers at night.
Professional pest control
One-time treatment
Private company, 1 visit
β©30,000β60,000
Cesco (3 initial + monthly)
Premium, guaranteed
β©160,000 + β©20,000/mo
Tip: Need 2β3 treatments to kill eggs. One treatment is rarely enough.
Prevention checklist
- β Cover drains at night (they enter through pipes)
- β No food left out overnight
- β Take out trash daily
- β Fix any water leaks (they need moisture)
- β Gel bait as preventive (replace every 2 months)