The house is quiet. Then something starts up in the ceiling: a patter, a scratch, a drag. It stops, starts again and fades. You lie there trying to guess what it is. The answer matters, because mice, rats and squirrels each call for a different plan.
Start with the rhythm.
Light, quick sounds, like fingernails tapping or a pencil rolling, usually point to mice. They are small, fast and move in short bursts. A single mouse can sound like several, because its feet drum on thin drywall.
Heavier sounds, with a thump or a drag, suggest a larger animal. A rat can sound like a small dog trotting across the attic floor. Gnawing, a steady scraping that goes on for a minute or more, can come from either, and it sounds louder in a quiet house.
A comparison you can use at 2 a.m.
| Clue. | Mouse. | Rat. | Other animal. |
|---|---|---|---|
| Sound weight. | Light patter, tiny scratches. | Heavy steps, thumps, dragging. | Thumps, rolling, sometimes chattering. |
| Time of night. | Evening to early morning. | Late evening through the night. | Squirrels: dawn and dusk. |
| Droppings. | Rice-sized pellets. | Larger, blunt-ended pellets. | Varies; ask for a check. |
| Where the sound travels. | Walls and ceiling cavities. | Attic floors, wall voids. | Roof edges, chimneys, soffits. |
Treat the table as a guide, not a verdict. Real sounds overlap, and several animals can share a house.
Keep a short log.
For a few nights, write down the time you hear the sound, the room beneath it, how long it lasts and what it resembles. Note whether the noise follows the heat coming on or the garage door closing. Patterns appear quickly, and the log is useful to the technician.
- Time of day and duration.
- Which room or wall the sound seems closest to.
- Whether it is a scratch, a patter, a drag or a thump.
- Whether it changes when the heat, fans or lights come on.
What not to do.
Do not poke at the ceiling or bang on the wall. Animals may bolt deeper into the framing. Avoid putting traps in the attic yourself unless you can reach them safely, since a missed catch leads to a smell. Do not seal anything before you know whether animals are inside.
If you suspect a squirrel or another larger animal, close doors to the room beneath and call. Our technician will look, name the animal and recommend a plan or a referral.
What is open today depends on earlier bookings, so the quickest way to learn is to ring.
(551) 274-5838What the technician checks first.
- The roofline and soffits for gnawed edges or loose boards.
- Vents and chimneys for missing screens or caps.
- The attic floor for droppings, trails and nest material.
- Wires and ducts for chewing.
- Wall voids by listening and, where needed, using a camera.
Often the technician finds the entry point outdoors before ever entering the attic. A trail of grease along a gutter or a hole at a roof return tells the story. After that, trap setting places devices on the routes that are actually used.
Why the sound moves.
Rodents travel through wall voids, along pipes, above ceilings and under floors. A sound that seems to leap from the kitchen to the bedroom may be a single animal using a chain of cavities. Do not trust a sound's origin entirely. It travels along framing and drywall.
An Emerson-specific thought.
In a borough of close-set houses with mature trees, branches often touch roofs. A branch is a bridge, and an animal using it enters at the roofline. Trimming back branches to a few feet from the house is a sensible step, but it is a complement to sealing, not a replacement.
Next steps.
If the sounds are regular, book a walk-through. If you smell something unusual, read about odor tracing. In both cases, keep your log, photograph anything you can reach safely and phone with your street and ZIP code.
Before touching any pellet
Patient wet work stops particles from getting into your lungs.
- Never clean rodent waste dry. Brooms, dust mops and vacuum cleaners all throw invisible particles into the room.
- Open each outside door and window first, then give the room about thirty minutes.
- Keep your hands covered for the entire job and wash them with soap and water when the gloves come off.
- Wetting everything down keeps dust grounded and gives the disinfectant time to act.
- Double-bag anything wet, dripping or sharp before it goes in the bin.
- A fever, sore muscles or labored breathing that shows up after a cleanup means a doctor visit, with the rodent contact mentioned. Ours is a pest business, not a clinic.
The original guidance
The agency pages themselves are linked below.
- EPA rules on rodent poison products: Why the strongest rodent poisons are limited to trained applicators and why household bait comes in locked, tamper-resistant stations.
- CDC page: mopping up after mice and rats: A damp-method routine for homes, explaining why each stage is there.