Flying Squirrels Chewing Wires: The Fire Risk CT Homeowners Miss
The Noise Is the Warning the Wiring Is the Real Problem
When Connecticut homeowners first notice flying squirrels in the attic, the thing that motivates the call is usually noise. Thumping at night, scurrying through the walls, chattering near the roofline. Those sounds are disruptive, but they're not the primary reason to act fast. The reason to move quickly is what flying squirrels do between the noise-making and that's chew through everything in your attic that has wiring or insulation around it.
Flying squirrels are rodents. Their teeth grow continuously throughout their lives, which means they chew constantly and compulsively to keep them worn down. Everything in your attic is fair game and the electrical infrastructure in a modern Connecticut home gives them plenty of material to work with.
What Flying Squirrels Actually Target in Your Attic
The short list: electrical wiring, HVAC line sets, recess lighting leads, foam pipe insulation, and structural wood where cables pass through. The damage often isn't visible until a technician pulls back insulation or until something fails. Flying squirrels strip the outer jacket off wiring first, then chew down to the conductor. A stripped wire that contacts insulation material — and your attic is full of insulation — has everything it needs to start a fire. The same problem occurs around recess lights, where squirrels chew the insulated leads that run to the can fixture.
Why It's Hard to Catch
Flying squirrels are strictly nocturnal and move fast. By the time most homeowners notice the signs, there's already an established colony in the attic — meaning the wire damage has been accumulating for weeks or months. HVAC systems that stop working, circuits that trip without explanation, recess lights that flicker or fail — these are all downstream symptoms of a flying squirrel problem that started much earlier. If you're in an older Connecticut home with original wiring, the risk compounds because degraded insulation is already more susceptible to the kind of damage rodent chewing causes.
What ProSource Does About It
During every flying squirrel inspection, ProSource assesses wire damage alongside the wildlife problem. We document what we find and flag any wiring issues that need to be addressed by an electrician before we seal the structure. We don't do electrical repairs ourselves but we will not seal an attic and hand it back to you without flagging damage that creates a risk. After exclusion is complete, the attic is inspected again and any decontamination or insulation needs are addressed at the same time. The goal is a fully resolved attic, not just an animal that's been removed.
ProSource serves Waterbury, Southington, Cheshire, Naugatuck, Wolcott, Watertown, Plymouth, Bristol, and surrounding communities throughout New Haven and Litchfield County. Schedule a free inspection today most jobs are booked within 24 hours.
Frequently Asked Questions
Can flying squirrels really cause a house fire?
Yes. They gnaw constantly to keep their teeth in check, and chewed electrical wiring, HVAC leads, and recessed-lighting wires are a genuine fire hazard in the attic.
How do I know it's flying squirrels and not mice?
Flying squirrels are most active shortly after dusk and again before dawn, and the noise is heavier and faster than mice. A gliding animal seen near the roofline at dusk is a strong sign.
What damage do they do in an attic?
Chewed wiring, shredded insulation, droppings, and contamination. A colony grows over time, so the risk and damage compound the longer it's left.
Does homeowners insurance cover rodent wire damage?
Most policies exclude rodent-related damage, which is why acting at the first sign matters rather than waiting.
How does ProSource handle it?
We inspect, remove the animals, and seal the entry points so they can't return, followed by any needed cleanup. Start with an inspection to confirm the species and the damage.

