Rats are scratching; what should you do? - briefly
Seal cracks, eliminate food sources, and deploy snap traps or bait stations to stop the activity; maintain sanitation to prevent recurrence. If infestation persists, engage a licensed exterminator.
Rats are scratching; what should you do? - in detail
When you hear persistent scratching sounds that appear to come from walls, ceilings, or stored items, the most likely cause is a rodent infestation. Immediate action is required to protect health, prevent structural damage, and stop the noise.
First, locate the activity. Follow the sound to the nearest point of entry. Look for fresh droppings, gnaw marks, shredded insulation, or grease‑stained pathways. Use a flashlight to examine gaps around pipes, vents, and utility lines. Identifying the exact area reduces unnecessary disruption.
Second, eliminate food sources. Store grains, pet food, and garbage in sealed containers. Clean up spills promptly, and vacuum crumbs from floors and cabinets. Reducing available nourishment forces the animals to move away.
Third, block entry points. Seal cracks larger than ¼ inch with steel wool, copper mesh, or concrete. Install door sweeps and repair damaged screens. Ensure that vents are fitted with metal grates that rodents cannot chew through.
Fourth, set control devices. Choose one of the following, based on the situation and local regulations:
- Snap traps placed perpendicular to the wall, baited with peanut butter or dried fruit.
- Electronic traps that deliver a lethal shock and allow for easy disposal.
- Live‑catch cages, if relocation is permitted, followed by immediate release far from the property.
Position traps along known runways, close to walls, and check them daily. Dispose of captured rodents according to health‑department guidelines.
Fifth, disinfect contaminated areas. Wear gloves and a mask, then clean surfaces with a solution of bleach (1 part bleach to 10 parts water) or an EPA‑approved disinfectant. Dispose of used bedding, insulation, and contaminated material in sealed bags.
Sixth, consider professional assistance. If the infestation is extensive, if you encounter nesting sites in inaccessible locations, or if you have health concerns such as allergies or asthma, a licensed pest‑control operator can apply bait stations, rodenticides, and advanced exclusion techniques safely.
Finally, implement a maintenance schedule. Conduct quarterly inspections of potential entry points, keep the exterior free of vegetation that touches the building, and maintain a clean interior environment. Consistent vigilance prevents recurrence and eliminates the source of the scratching noises.