Signs of rats in San Diego County
Rats leave more obvious damage than mice because of their size, and roof rats in particular are noisy overhead at night. Droppings, gnaw marks on larger objects, and noise in the attic are the clearest signs.
How to tell if you have rats
- Larger droppingsCapsule-shaped droppings around a half inch long, bigger than mouse droppings, found in attics or along fence lines.
- Noise overhead at nightHeavier scurrying or thumping in the attic after dark, especially along the roofline where roof rats travel.
- Gnawed fruit and irrigation linesHalf-eaten citrus still on the tree or on the ground, and chewed watering lines near garden beds.
- Rub marks on beamsDark greasy smudges on attic rafters or fence tops where rats repeatedly travel the same route.
- A dead-animal smellA strong odor from a wall void or attic space, often the first sign a rat died somewhere inaccessible.
What to do next
Keep tree branches trimmed back several feet from the roof, secure trash and pet food, and seal roofline gaps a pro identifies during exclusion work. Ongoing yard maintenance matters more for rats than for most other pests, since food and cover are what draw them in.
Ready to act? How to get rid of rats.
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Common questions
Are roof rats more dangerous than Norway rats in San Diego County?
Roof rats are not more dangerous to health, but they are harder to control because they nest above ground in attics and trees rather than in ground burrows, which limits how well ground-level bait stations work.
Should I use poison bait for rats around my house?
We generally recommend against loose rodenticide for homeowners. It poses a risk to pets and wildlife, and a poisoned rat often dies inside a wall, creating an odor problem that is worse than the original infestation.
How much does rat exclusion cost in San Diego County?
Exclusion work, sealing the actual entry points into the attic and walls, typically runs $400 to $2,000 depending on how many gaps a home has and how accessible the roofline is.
Spotting signs of rats?
Call for a free inspection across San Diego County. Flat-rate quote before any work.