The scratching behind the bedroom wall is a siding problem before it is an animal problem. Squirrels and starlings do not chew through a sound wall. They find an opening that already exists, and on a 1960s ranch that opening is almost always up at the gable end, where the panel run dies into the rake trim. Nobody looks up there, because nothing about a loose panel 22 feet off grade is visible from the driveway. The noise shows up first, usually right at dusk (and yes, every homeowner swears it sounds much bigger than a squirrel). Most owners who end up searching for siding contractors pittsburgh pa do it after the exterminator’s third visit, which is roughly two visits later than it needed to be. Closing the wall properly costs less over ten years than paying someone to evict the same animals every spring.
Animals Get In Where Old Panels Pull Loose
Job after job, the opening turns up in the same three feet of wall: the gable peak, where the panel course meets the trim and the soffit return. That is the spot that moves most. Aluminum never stops shifting with the weather, and InspectAPedia’s expansion tables, updated in July 2026, put aluminum’s thermal expansion at roughly 23 x 10 to the minus 6 per degree Celsius, or about 0.0000123 inches per inch per degree Fahrenheit. That sounds like nothing until you run it across a 16-foot panel through a Pittsburgh February and then a Pittsburgh August. Panels nailed too tight cannot take the movement, so fasteners work loose, the panel lifts at the end, and a quarter-inch gap opens behind the trim. A squirrel needs about an inch and a half. It will make an inch and a half out of a quarter inch in one afternoon, and the birds take the soffit bay next door once the first one is in.
On a wooded quarter-acre lot in the eastern boroughs, the odds get worse. Limbs over the roof are a highway, and the gable end on most of these ranches faces the trees. What we usually find once the panels come off is not one hole but a run of them, plus insulation shoved aside for a nest the size of a laundry basket, and now and then a wasp nest in the bay beside it.
Patching Buys A Season, Not Another Decade
A patch is a fair move when the rest of the wall has life left in it. A 60-year-old aluminum run is on borrowed time already. Ten years ago patching was an easier argument, because local supply houses still carried the common profiles and you could get close enough on color that only the homeowner noticed. Today those profiles are discontinued, the existing wall carries six decades of chalking, and a patch reads as a patch from the street. So you are paying a crew to set ladders, close one hole, and match nothing.
Run the money out loud. Say the patch call comes to $600 and the wildlife company has already taken $450 across two visits, which puts $1,050 against a hole that reopens at the next panel joint. A homeowner hoping to stay under $1,500 is most of the way to that number with nothing permanently closed. The same $1,500 put toward replacing the failed gable elevation and rebuilding the trim and soffit detail buys a wall nobody has to visit again. It only looks like a close call in the first year.
Will An Exterminator Solve This For Good?
They will solve half of it, and that half matters. Trapping and one-way doors get the current tenants out, and a good wildlife tech screens whatever he can reach from a ladder. The hole is still a hole and the trim around it is still loose, so by next February something else has found the address.
How Can I Tell If It Is One Panel Or The Whole Wall?
Stand in the yard on a bright morning with a pair of binoculars. Look for panels standing proud of the course below them, shadow lines that break mid-run, and gray streaking under the joints where water has been running behind the siding. If more than a couple of spots on one elevation show it, the fasteners are failing across that wall and a single patch is a guess.
A Properly Closed Wall Ends The Cycle
Do not climb up to plug a gable-end hole or knock down a nest yourself. CDC and NIOSH reported that about 511,000 Americans were treated for ladder injuries in 2013, at an estimated cost near $24 billion, and work above the first floor belongs to a crew with proper ladder setup and fall protection. Add a disturbed wasp nest at 22 feet and an extension ladder on soft spring ground, and you have the exact setup those numbers describe. Inspect from the ground. Let someone tied off do the rest.
The real fix is unglamorous. A crew strips the failed elevation, checks the sheathing behind it for the rot that turns up under any leaking joint, rebuilds the trim and soffit return so the panel course terminates tight, and screens the vents that have to stay open. Homeowners comparing siding contractors pittsburgh pa on price alone tend to pick the bid that counts panels and nothing else, so ask each one what it says about the trim, the soffit and the gable detail, because that is the ground where the animals were winning. The wall goes quiet the same night the panels go back on. It stays quiet because there is no longer a way in, not because something got evicted.
