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How to Get Rid of Rats and Mice in Your Home: A Complete Guide

Suresh Wijesinghe April 18, 2026 6 min read
How to Get Rid of Rats and Mice in Your Home: A Complete Guide
Rodents are among the most common — and most destructive — household pests in Sri Lanka. A single pair of rats can produce over 1,000 descendants in a year, and they don't just steal food: rats gnaw through electrical wiring (a leading cause of unexplained house fires), contaminate stored food, and spread diseases including leptospirosis, which spikes during monsoon flooding.

Signs You Have a Rodent Problem

  • Droppings — dark, spindle-shaped pellets along walls, in cupboards, or behind appliances
  • Gnaw marks on food packaging, furniture, wiring, and plastic pipes
  • Scratching noises in ceilings and wall cavities, especially at night
  • Grease marks — dark smudges along skirting boards where rodents repeatedly travel
  • Nests made of shredded paper or fabric in quiet, hidden corners

Why Rodents Enter Sri Lankan Homes

Rats and mice come indoors for the same three reasons: food, water, and shelter. Activity peaks during the southwest monsoon (July–September), when flooding drives rodents out of drains and paddy fields into dry buildings.

DIY Steps That Actually Help

  • Seal entry points — a rat can squeeze through a gap the size of a two-rupee coin. Check around pipes, vents, roof eaves, and door gaps.
  • Store food in sealed containers — including pet food and rice sacks
  • Fix leaking taps and remove standing water sources
  • Declutter storerooms, garages, and gardens to remove nesting sites
  • Manage garbage — use bins with tight-fitting lids and dispose of waste daily

Why Traps Alone Rarely Work

Rats are neophobic — they avoid new objects in their territory, which is why shop-bought traps often sit untouched for weeks. Worse, killing a few rats without addressing the colony and entry points simply creates a vacancy that new rodents fill within days.

Professional Rodent Control

A professional rodent control program combines tamper-proof bait stations, glue boards in sensitive areas, and monthly monitoring to eliminate the entire colony — not just the bold individuals. Sunkem International uses WHO-approved rodenticides placed safely out of reach of children and pets, with follow-up visits to track activity until your property is clear.

If you're hearing scratching in the ceiling or finding droppings in the kitchen, don't wait for the problem to multiply. Book a free rodent inspection and we'll map the infestation and seal the routes rodents are using.

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