Yes. Mice can enter ductwork through gaps in crawlspaces, basements or attics and come out through a floor vent. Seal gaps around ducts, keep vent covers seated with no gaps around the edge, and add fine metal mesh under the cover if you've seen droppings. Call pest control for an active problem.
Mice are incredibly nimble creatures and can squeeze through very small openings. If the floor vents have openings large enough for a mouse to fit through, it's possible for them to enter through those vents. Blocking off or covering vents with mesh or grates designed to keep rodents out can be a good preventive measure. Regularly checking and maintaining the vents can help prevent unwanted critters from entering your home.Get vents that match your floor
Vinyl (LVP/LVT) floor vents · Hardwood floor vents · Matching cold air returns
Frequently asked questions
How do I know mice are in my vents?
Droppings near the vent, scratching sounds or a musty smell.
Will a vent cover stop mice?
A cover with small openings helps, but sealing the ducts is what stops them.
Related guides
- How to clean vent coversHow to clean floor, wall and ceiling vents, including wood and vinyl flush vents.
- Keeping pets from damaging floor ventsSimple ways to protect vents from digging dogs and scratching cats.
- What floor vent covers are made ofSteel, aluminum, wood or your own flooring, and how each one holds up.
- How to remove a floor vent coverLift out an old register without scratching the floor, then measure the opening.