When heavy rain soaks the ground for days, animals that live in the soil look for somewhere drier. That does not mean every storm brings rodents into every house. It means conditions shift, and a building with gaps becomes a more attractive shelter. This guide explains what we can say with confidence and what you can check yourself.
What changes when the ground floods.
Norway rats and some mice live in burrows, and a burrow that fills with water is no longer a safe home. The animals move, and the nearest dry, sheltered spot may be under a deck, inside a shed or in a garage. Roof rats, which nest higher up, may be less affected, but wind can knock down their nests and fronds.
Florida's Atlantic coast has a wet season through much of the warm months, and tropical systems can arrive late in the year. We make no prediction about any storm, and we do not claim that rodent calls rise after one. The point is simpler: wet, windy weather can open new gaps and disturb old hiding places.
A walk-around checklist for after the weather passes.
Wait until it is safe to go outside, and watch for downed wires and unstable limbs. Then walk the building slowly with a flashlight, looking low and high.
- Look at the base of the walls for fresh holes, loose soil or heaped debris.
- Check each vent cover and foundation screen for dents, tears and pulled corners.
- Examine the roof edge for fronds or limbs resting on shingles.
- Test the garage door seal and the corners where it meets the wall.
- Note any new water pooling against the slab.
Photograph what you find, and write down the date. If you later hear noises, those notes help us trace the entry.
Where animals tend to look for shelter.
| Place. | Why it appeals after rain. | What to do. |
|---|---|---|
| Under decks and porches. | Dry, dark and close to the ground. | Check for holes, clear debris, close gaps. |
| Sheds and outbuildings. | Shelter and stored materials. | Seal the floor edge, raise items off the ground. |
| Garages. | Stacked boxes and a door that rarely seals. | Replace seals, move cardboard into lidded bins. |
| Attics and soffits. | Warm, dry and out of the weather. | Check vents and roof edges. |
| Woodpiles and lumber. | Cover next to the house. | Raise on a rack, away from walls. |
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Tap to call (888) 686-4821Cleaning up debris safely.
Storm cleanup can disturb nests and droppings. Wear gloves, avoid raising dust and keep children and pets back. Should you uncover droppings or nest material while hauling debris, do not sweep it dry. The CDC recommends wetting it with disinfectant and wiping it away, as the safety checklist below explains.
If you disturb a nest, back away and leave the area for a while. Animals that feel trapped may run, and a startled rodent can bite.
Sealing gaps before the next one.
The most useful step is also the least dramatic: close the gaps before the weather turns. Metal flashing and heavy mesh resist teeth, while foam and thin plastic do not. Metal and mesh choices are covered on the exclusion page, and the yard page covers the food and cover that draw animals close.
If a storm has already damaged your roof, soffits or siding, repair those parts first. A new opening at the roof edge is the sort of gap a roof rat can use within a night or two.
A simple before-and-after routine.
It helps to treat the wet season as a rhythm and not an emergency. Before the rainy months begin, spend an afternoon on the outside of the building. After a big storm, repeat a shorter version of the same walk. Comparing the two walks is the useful part, because a new hole is much easier to spot when you remember what the wall looked like last month.
- Take dated photographs of each side of the building before the wet season starts.
- Repeat the photographs after any storm that brought heavy wind or flooding.
- Keep a short note of loose screens, cracked seals and areas where water pools.
- Fix small items right away, before the next system arrives.
None of this requires special tools. A flashlight, a ladder you can use safely from the ground and a few minutes per side of the building are enough. Leave the roof itself to a roofer, and do not climb in wet or windy conditions.
Moisture inside the building.
Storms can also leave moisture behind in attics, crawl spaces and garages. Damp insulation, wet cardboard and soaked wood can hold odor and attract animals looking for soft material. If you find wet items after a storm, dry or discard them quickly. Wet cardboard in particular turns into ideal nesting material once it dries, so replace boxes on garage floors with lidded plastic bins.
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Tap to call (888) 686-4821When to call.
Call if you see droppings, new chewing or fresh holes, or hear steps overhead after dark. An inspection identifies the animal and shows where it got in. Tell us about storm damage, loose vents or debris, because those details help us choose where to look first.
If you are not sure, a short phone call is usually enough to tell whether a visit makes sense. Describe the sign, the room and the date, and the dispatcher will tell you what to do next.
Hold the broom: read this first
Residents can use the list to keep dust low while a technician is on the way.
- Anything dry stays off the brush and out of the vacuum.
- Hot, stuffy storerooms and attics should air for thirty minutes before cleaning begins.
- Wear rubber, vinyl or similar gloves for anything soiled, then wash with soap and warm water when finished.
- Wet it all thoroughly, wait roughly five minutes, then pick the waste up with towels meant for the trash.
- Pick a bag that seals well, with gloves or a tool between you and the animal.
- We make no medical claims. Fever, aching all over or labored breathing after handling waste is a matter for a doctor.
Where the safety steps come from
A short guide cannot hold a whole agency page, so if the two ever differ, the agency's guidelines win.
- CDC steps for preventing hantavirus exposure: Staying healthy around rodents, with sealing, trapping and careful cleaning in that order.
- CDC advice on cleaning rodent droppings and nests: Contact time for the disinfectant, which protective gear to wear and where the bagged waste goes.