Why is it only loud in the morning?
Tree squirrels are daytime animals. Scratching at sunrise fits them. If the noise starts after the lights go out, say so. It may be a flying squirrel, or it may be mice.
Squirrels in the attic Why do squirrels move into attics?
They want a dry nest and a place to store food. A branch over the roof is a sidewalk. Wood is not a repair they respect.
Key facts
- Squirrels can use a gap about 1.5 to 2 inches wide.
- Tree branches that touch the roof are the usual bridge.
- Incisors grow continuously, so they gnaw wood, plastic, insulation, and electrical wire.
- Chewed wire insulation can lead to a short and a fire.
- A wood patch is easy to chew open again. Metal mesh or flashing is the repair.
- A one-way door lets a squirrel exit and blocks re-entry. Every other gap must be closed first.
How do they get from the tree to the bedroom?
Squirrels climb well, and a limb that reaches the roof might as well be a ramp. From there they test roof vents, soffits, chimneys, and the seams where fascia meets the roof. An opening around 1.5 to 2 inches is enough. If they have used it once, they will use it again next season unless it is actually closed.
Daytime scratching, especially at dawn, fits gray squirrels and fox squirrels. Night scurrying can be flying squirrels or mice. The time of day is the useful clue. You do not have to name the species first.
Why is chewing the dangerous part?
Squirrel incisors grow for life and have to be worn down. In an attic that means wood, plastic, insulation, and wiring. When the plastic coating comes off a wire, a short can start a fire. Gnawing on fascia and beams weakens them over time. Droppings and urine sit in the insulation, and fleas, ticks, or lice can come along.
That is a practical reason to deal with it, not a scare line. The person in the attic should look at what has been chewed and say so in plain words.
Why does a wood patch fail?
Wood is what they chew. A board over a gap looks finished and becomes the same hole after a few nights. Galvanized hardware cloth, metal flashing, and a real vent cover stand up to teeth. Foam alone does not.
Trimming the branch helps. It does not close the hole they already know. Both steps belong in the same plan.
When does a one-way door work?
A one-way door, a flap or funnel that opens outward, lets the squirrel leave and stops it from coming back. It only works if every other opening is sealed first. Otherwise they re-enter next door and the device did nothing.
It is the wrong tool if young squirrels are still in the nest and cannot leave. After the animals are out, the device comes off and that last opening is sealed for good.
What changes by region?
Northeast Indiana
Fort Wayne streets with older maples and oaks see this every fall, when squirrels settle in, and again in late winter when babies show up. Gray squirrels and fox squirrels are both common. A nest with young means the hole stays open until they can leave.
Central Ohio (coming soon)
The same roofline gaps and tree bridges show up on Central Ohio houses. The repair is still metal, and it still waits if babies are in the nest.
Common questions
Will trimming the tree fix it?
It removes the bridge. It does not close the hole. Both matter: get the animal out, close the opening with metal, and deal with the limb that worked like a ramp.
Can the hole be boarded with plywood?
Plywood is a snack they already know how to eat. Use galvanized steel mesh, hardware cloth, or metal flashing where they chew.
Do one-way doors trap babies?
They can, if the young cannot leave yet. Other openings also have to be sealed or the adult simply uses a second door. Check for a nest before anything is closed.