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🐀 How Do Mice and Rats Enter Homes Even with All Doors and Windows Closed?


You might think your home is secure — with every door shut and window locked — yet somehow, rats or mice still manage to sneak in. It’s not magic. It’s actually their natural ability to squeeze through the tiniest spaces and find hidden access points you may not even notice.

Rodents are not only clever, but they’re also extremely flexible and determined when searching for food, warmth, and shelter — especially during colder seasons or after rain.

🕳️ Common Ways Rodents Enter Homes

1. Cracks in Walls or Foundations

Even the smallest crack in your foundation or wall (as little as 1/4 inch) is enough for a mouse to squeeze through. Rats need just about 1/2 inch.

2. Gaps Around Pipes or Utility Lines

Rodents often use plumbing pipes, gas lines, or AC vents to enter. If these have gaps around them, rats can chew through insulation and make their way inside.

3. Openings in Roofs or Attics

They can climb trees, walls, or gutters to access your roof vents, chimneys, or attic fans — especially if they’re uncovered or poorly sealed.

4. Gaps Under Doors and Garage Openings

Mice can enter through door sweeps or garage seals that are worn out or too high off the ground. They may even chew through rubber or wood to widen the entry.

5. Drains and Toilets

In some extreme cases, rats can enter through sewer lines and even emerge from toilets or floor drains, especially in urban areas like Karachi.

6. Window AC Units

Old or poorly sealed window air conditioners often have tiny gaps where rodents can easily crawl in — especially if foam seals are used instead of proper caulking.

⚠️ Why You Should Worry About Rodent Entry

  • 🦠 They spread diseases through droppings and urine

  • ⚡ They chew wires, risking electrical fires

  • 🍽️ They contaminate food and surfaces

  • 🪵 They damage furniture, insulation, and belongings

  • 👃 They leave behind a foul odor and stains

✅ How to Protect Your Home

  • Seal all cracks and holes with metal mesh or concrete

  • Install door sweeps and repair window screens

  • Cover vents and chimneys with rodent-proof mesh

  • Keep food sealed and garbage bins tightly closed

  • Trim trees and shrubs away from walls and roof

📍 Need Professional Rodent Control in Karachi?

If you suspect rodent activity in your home or office, don’t wait until it turns into an infestation.

👉 Click here for expert Rodent Control Service in Karachi
 The professionals at Pest Control Karachi use safe, effective, and humane methods to get rid of rats and mice — for good!

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