October 10, 2025
Squirrels in San Antonio Attics: The Fall Invasion Homeowners Face
As fall settles over San Antonio, the cooler weather brings a surprising problem for homeowners — squirrels in the attic. Those quick little climbers that look harmless in your yard can turn destructive fast once they find their way indoors.
October marks the start of San Antonio’s squirrel invasion season, and if you’re hearing early-morning scratching, it’s time to take a closer look.
Why Fall Triggers Squirrel Infestations in San Antonio
San Antonio’s mix of warm days and cool nights creates perfect conditions for squirrels to seek indoor shelter.
-
They’re preparing nests for winter.
-
Rooflines + attic vents offer warmth and safety.
-
Heavy tree growth in neighborhoods like Stone Oak, Alamo Heights, and Helotes makes roof access easy.
Female squirrels also start looking for nesting sites to have their young — making October a peak month for attic invasions.
Common Signs of Squirrel Activity in Your Attic
-
Daytime noises: Unlike raccoons, squirrels are active during daylight.
-
Chewed electrical wires: A serious fire hazard.
-
Insulation damage: Pulled apart for nesting.
-
Droppings: Small, brown pellets scattered along beams.
-
Foul odor: From urine or deceased animals.
If you spot any of these, schedule a squirrel inspection in San Antonio immediately.
The Cost of Ignoring Squirrel Damage
Homeowners often underestimate squirrels, but they’re one of the most destructive attic invaders in Texas:
-
Chewing on electrical lines = fire risk.
-
Destroying insulation = higher utility bills.
-
Damaging vents + roof = entry points for rain + other pests.
-
Nesting in walls = noise and contamination.
Unchecked, a squirrel infestation can cost thousands in electrical + attic repairs.
DIY Squirrel Removal vs. Professional Service
Homeowners sometimes try repellents, mothballs, or DIY traps — but these usually fail. Squirrels can:
-
Re-enter through unsealed gaps.
-
Chew through patch materials like foam or wood.
-
Leave behind contamination even after removal.
Professional squirrel removal in San Antonio includes not only trapping and relocation but also attic sanitation, insulation replacement, and permanent exclusion.
How Professional Squirrel Removal Works
-
Inspection: Identify all access points (vents, rooflines, chimneys).
-
Removal: Humane trapping or one-way exit devices.
-
Cleanup: Remove droppings + nesting material.
-
Repair: Seal openings + replace insulation.
-
Guarantee: 15-month warranty on exclusion work.
At Critter One San Antonio, we don’t just remove squirrels — we make sure they never come back.
Prevention Tips for San Antonio Homeowners
Keep squirrels off your roof and out of your attic:
-
Trim tree branches 6–8 feet from your roof.
-
Replace broken vents + seal roofline gaps.
-
Don’t leave pet food outside.
-
Store birdseed in sealed containers.
-
Schedule annual attic checks before winter.
Neighborhood Hotspots for Squirrel Activity in San Antonio
We’ve seen heavy squirrel infestations in:
-
Stone Oak
-
Alamo Heights
-
Leon Valley
-
Converse
-
Helotes
These areas combine tree cover + aging rooflines — the perfect squirrel setup.
When to Call for Help
If you’re hearing scratching or scurrying during the day, it’s time for a professional inspection. Squirrels multiply quickly, and the longer they stay, the more damage they cause.
Critter One offers:
Free inspections
Humane squirrel removal
Full attic repair + insulation replacement
15-month guarantee
Serving all of Greater San Antonio — from downtown to New Braunfels.