Rodent Noises at Night: What You Are Hearing

Most rodent noise happens at night, when the house is quiet and rodents are most active. Light, fast scratching or skittering inside a wall or ceiling usually means house mice. Heavier scratching, gnawing or thumping, especially under the floor, points to Norway rats. Noise at the roofline right around dusk and dawn can be flying squirrels. Daytime noise in the attic is more often gray squirrels.

Sound alone is a guess. Droppings, entry holes and where the noise happens confirm it. Here is how to read what you are hearing in an Asheville house.

Mice: light, quick and everywhere

House mice make light scratching, skittering and rustling sounds, sometimes with faint squeaks. You usually hear them in the evening and early morning, moving fast inside walls, across ceilings and in cabinets. Mice travel between floors inside wall cavities, so the sound can move from a downstairs wall to an upstairs ceiling.

In older Asheville houses, walls often have open stud bays that run from the crawl space to the attic, so mice can travel the full height of the house inside one wall. Look for mouse droppings, a quarter to half an inch long, under sinks, in drawers and behind appliances. See mice in walls removal.

Rats: heavier, lower and gnawing

Norway rats are much bigger, and they sound it: heavier scratching, scurrying with weight behind it, thumps and steady gnawing on wood or pipes. Because Norway rats live low, the noise usually comes from under the floor, the crawl space, the basement or low in the walls, often near the kitchen or bathroom where pipes run.

Rats are active at night. Look for droppings half an inch to three quarters of an inch long in the crawl space or basement, burrows along the foundation and rub marks along beams. See rat control.

Flying squirrels and gray squirrels

Southern flying squirrels are small, nocturnal and common in wooded areas. In a house, they usually live in the attic and get in through small gaps at the roofline. They are often heard right after dark and before dawn: scampering, rolling sounds like nuts across the floor and chirps. Gray squirrels make similar but heavier noises during the day, especially early morning and late afternoon.

Squirrel droppings are larger and rounder than mouse droppings. Entry holes at the roofline, chewed soffit corners and trails across attic insulation point to squirrels. Squirrel work may need a wildlife provider, though sealing the roofline helps against mice too.

Other sounds that are not rodents

Ticking, popping or creaking as the house heats and cools, especially in older homes and on cold nights.
Water moving in pipes and drains.
Insects like crickets in a crawl space.
Birds in vents or chimneys, usually in the early morning.
Raccoons in attics or under decks, which are much louder and heavier than rats.

If the noise follows a schedule, like when the heat cycles or someone runs water, it is probably the house.

Want someone to track down the noise?

Your call goes to an independent rodent control provider serving Asheville and Buncombe County. Describe what you are seeing and ask for the plan and the price in writing before any work starts.

(828) 503-0038Tap to call · Free to call

How to narrow it down yourself

1. Write down when you hear it and where: which wall, which ceiling, which time of night. 2. Check below and above that spot: the crawl space or basement, and the attic. 3. Look for droppings and compare their size to a coin. 4. Look outside for holes at the foundation and roofline. 5. Put a little flour or talc on the floor near suspected runways overnight, and look for tracks in the morning. 6. Set a couple of snap traps along the wall where you hear the noise, if pets and kids cannot reach them.

If you are still not sure, an inspection sorts it out. See rodent inspection.

Why noise gets worse in the fall

In Asheville, noise complaints pick up when nights turn cold in the fall. Mice and rats move indoors for warmth and settle near heat sources: behind refrigerators, around water heaters and furnaces, near chimneys and in attic insulation over heated rooms. See seasonal rodent problems in Asheville.

Noise patterns common in Asheville houses

Older homes with plaster walls: mice moving inside open stud bays between the crawl space and attic, often heard in one wall downstairs and the ceiling above it a minute later.
Hillside houses: rats under the floor on the low side of the house, near the basement or crawl space wall.
Homes near big trees: scampering at the roofline right after dark, often flying squirrels.
Houses near creeks: heavier noise under the floor in fall and after heavy rain, often Norway rats.

Noise near the kitchen or bath often follows the pipes. Mention that on the call.

Frequently asked questions

Why do I only hear scratching at night?

Mice and rats are most active from dusk to early morning, and the house is quiet then, so sounds carry.

Is it mice or rats in my walls?

Light, quick scratching is usually mice. Heavier noise, gnawing and thumping, especially low in the house, points to rats. Droppings confirm it.

Could the noise in my attic be squirrels?

Yes. Noise right around dusk and dawn can be flying squirrels, and daytime noise is often gray squirrels. Look for entry holes at the roofline.

Will the noise stop on its own?

Rarely. Rodents that found shelter usually stay through winter unless they are trapped and the entry points are sealed.

Should I bang on the wall to scare them off?

It may quiet them for a few minutes, but they come back. Note the time and place of the noise instead, and use that to find where they travel.

Get a rodent technician on the phone

Free to call. You are connected with an independent provider serving Asheville and the rest of Buncombe County. Same-day appointments are often available.