In late winter the yard changes fast. Snow shrinks, leaves reappear and the ground turns soft. For animals that spent the cold months in burrows, walls and woodpiles, it is a time of shifting. For homeowners, it is a good moment to walk the property and see what the winter left behind.
What a thaw changes.
Meltwater sinks into the ground and can flood burrows. An animal that loses its shelter goes looking for another, and a building with a dry foundation and a warm cellar looks like a good bet. That does not mean a rodent will enter. It means the gaps in your building matter more than usual.
Thaw also exposes old nests, droppings and runways that snow hid. A yard walk after the snow clears often shows more than one in midwinter.
A post-thaw walk.
- Walk the foundation, watching for new holes, fresh soil and mulch that has been disturbed.
- Check vent covers, window wells and bulkhead doors for damage or debris.
- Look at the base of any stone wall and woodpile.
- Clear leaves from gutters, downspouts and drains so water moves away from the house.
- Look over the garage door seal and its corners for gaps.
Photograph anything unusual and note the date. A comparison with autumn photos can show what changed.
The cellar after rain.
Go down with a flashlight a day after heavy rain or snowmelt. Look for water on the floor, damp patches on walls and anything that moved. A musty smell is common, but a sharp ammonia note or a sweet rot can suggest animals.
| What you see. | What it can mean. | What to do. |
|---|---|---|
| Standing water. | Drainage or a high water table. | Call a moisture or drainage specialist. |
| Damp wall patch. | Seepage or a leak. | Note it, keep stored goods off the floor. |
| Fresh droppings. | Active rodents. | Photograph, wear gloves, call for a walk-through. |
| New gap at the sill. | Settling or frost damage. | Mention it, we can seal what we can reach. |
| Sharp smell. | Urine or an animal. | Air the space and call. |
Stored goods and moisture.
Damp cardboard is a favorite nest material. If your cellar gets wet, switch to plastic bins with lids, raise them on shelves and leave a gap from the wall. Check them after any heavy rain.
A dehumidifier can help, and so can fixing a gutter that pours water at the foundation. Those are building matters, and a specialist is the right person for them.
Not sure what a walk-through includes? A dispatcher will explain it while you are on the line.
Dial (888) 686-4821Spring sealing.
Winter damage is easier to see in spring. Frost can open cracks, vents can loosen and a garage seal may have split. Closing those openings with mesh, flashing and cured sealant protects the building through summer and into the next autumn. See our exclusion page for materials.
If you already have animals inside, trapping comes first, then sealing. Our trapping page explains the order.
What to leave to others.
Standing water, structural cracks and persistent dampness are not rodent issues. They belong to drainage, masonry or moisture professionals. We tell you what we see and which trade fits, and we do not guess.
This guide is general. If you find signs of activity and are unsure, phone the line and tell the dispatcher what you saw.
Before you call: tidying droppings without raising dust
Moving slowly keeps fine particles out of the air you breathe.
- Fast, hard scrubbing lifts dust, so go gently and keep everything wet.
- Prop the door, feel the breeze move through and come back in about thirty minutes.
- Rubber, vinyl or latex gloves go on before you handle anything soiled, and a good hand scrub ends the job.
- Cover the waste and the area around it with disinfectant, and give it a rest before the first pass of the towel.
- Pick up a dead animal through a barrier and drop it straight into a bag.
- Should a fever, aching muscles or trouble breathing follow a cleanup within a few weeks, see your doctor and mention the exposure. Pest companies cannot offer medical advice.
Official references for this page
When a detail matters for your household, compare it with the originals listed here.
- EPA limits on rodenticide products: How the EPA separates household bait from products kept for trained applicators.
- CDC walkthrough for cleaning up after rodents: Venting a closed room, soaking droppings where they lie and bagging the waste, one stage at a time.