How to get rid of rodents in the attic

Quick overview

• Attics offer rodents warmth, shelter, and quiet nesting space
• Scratching noises and droppings are usually the first clue
• Sealing entry points stops new rodents getting in
• Traps and bait help, but exclusion matters more long-term
• Professional attic pest control looks at the cause of infestations, not just visible signs

Rodents love attics because they tick every box: warm, dark, rarely disturbed, and usually stocked with insulation and cardboard boxes perfect for nesting. Once they're settled in, getting rid of rodents in the attic takes a bit more than putting a few traps down.

Signs of rodents in your attic

Before working out how to remove them, it helps to confirm what you're actually dealing with. Look out for:

• Scratching or scurrying noises, especially at night when rodents are most active
• Droppings scattered near boxes, insulation, or along the attic floor
• Gnaw marks on wood, wiring, or storage boxes
• Grease or rub marks along beams and joists where rodents travel repeatedly
• Shredded insulation or fabric, often pulled together to build a nest

If you're hearing noises but haven't confirmed the culprit, our guide to noises in the attic can help you narrow things down, since squirrels, birds, and even bats can sound surprisingly similar from below.

How to remove rodents from an attic

Once you've confirmed rodents are up there, the process generally comes down to four steps.

1. Inspect the space: Walk the attic (carefully) to find nesting sites, droppings, and the extent of any damage. This also gives you a sense of whether you're dealing with one or two mice or a more established group.

2. Find and seal entry points: Rodents don't appear in attics by magic. They climb trees, gutters, or rooflines and squeeze through gaps around vents, soffits, or roof edges that are often no bigger than a coin. Sealing these gaps is the difference between solving the problem and just moving it along for a few weeks. We can help with professional rodent exclusion.

3. Set traps or bait stations: Snap traps and bait stations placed along travel routes can reduce the active population. Non-toxic monitoring bait is also useful for confirming how much activity is actually going on. Use gloves when placing traps, as rodents can smell if humans have touched a trap and will avoid it.

4. Clean up thoroughly: Droppings, urine, and damaged insulation should be cleaned out once the rodents are gone, both for hygiene and to stop smells attracting the next pest. Check out our guide on rodent dropping cleanup. This is also a good moment to check whether insulation needs replacing, since TAP insulation can double up as pest-resistant material going forward.

Rodent removal from the attic often requires more than a DIY approach. Rats and mice are experts at hiding, breed quickly, and can catch on to your efforts to control an infestation. Our experts know exactly how to eliminate them and help prevent them from returning.

Mouse vs. rat in the attic

Rats and mice behave a little differently once they're indoors, so it's worth knowing which one you're up against. 

• Mice are small, cautious, and tend to nest close to food.
• Rats are bigger, bolder, and often cause more noticeable structural damage simply because of their size.

If you're trying to work out whether you need rat control or mouse control, droppings are usually the easiest giveaway: rat droppings are noticeably larger, closer to half an inch or more, compared to a mouse's quarter-inch pellets.

Professional attic pest control

Getting rid of rodents in the attic for good usually means combining a few things most DIY approaches miss: a proper inspection, targeted treatment, and sealing up the entry points that let rodents in to begin with. Our technicians handle all of this as part of a full rodent removal service, focusing on the full spectrum of an infestation, not just the visible signs.