The median Philadelphia home dates to 1949. That means knob-and-tube remnants still turn up in attics and walls, some live, some abandoned under later insulation. Fuse panels and 60-amp services are common too, along with ungrounded, two-prong outlets. Renovations done in the 1960s and 1970s often added aluminum branch wiring that was never corrected.
That holds true whether the address is a few blocks from City Hall or out past the far Northeast. Our crews dispatch from their own neighborhoods across Philadelphia, not one central shop, so the electrician who answers your call already knows this kind of housing stock.
Remnants of Hurricane Ida caused major flash flooding and outages across Philadelphia in September 2021. A panel that sat underwater can look fine and fail months later from corrosion. If your basement took on water that year and nobody checked the electrical system since, it's worth a look now, not after something fails.