Pennsylvania's housing stock is among the oldest in the country — median home age is 56 years, which means most stairlift customers live in homes built before 1968. The single dominant home type in Philadelphia and its inner suburbs is the rowhouse — 3-story brick townhouses in South Philly, Kensington, Fishtown, Fairmount, Queen Village, Point Breeze, and Francisville — where the staircase is tight (30-34 inches wide), steep (pitch over 40 degrees), and runs 14-16 treads per flight. Philadelphia rowhouse stairlifts require the narrow-profile seat with a compact folding footrest; anything else blocks the opposite-wall handrail and leaves no room for a second person to pass. We stock the narrow-rail Philly kit on the truck for any Philadelphia County install.
Pittsburgh and southwestern PA is different: steel-town duplexes and single-family frame houses in Mount Washington, Beechview, Polish Hill, Lawrenceville, Squirrel Hill, and the Mon Valley towns from Homestead to McKeesport. Pittsburgh's hills mean many homes have exterior entries with 10-30 concrete steps from street level to the front door because the lot slopes 30-60 degrees. Outdoor stairlifts on Pittsburgh hillside entries are our most-installed exterior product west of the Alleghenies.
The anthracite coal region — Scranton, Wilkes-Barre, Hazleton, Pottsville, Shamokin — has its own story: 1890s-1920s miner's row houses with 2 floors plus a basement and a steep utilitarian staircase. Freeze-thaw cycles in northeastern PA are brutal (Scranton averages 65+ days a year crossing 32°F), which is why our PA spec uses galvanized bracket hardware and sealed neoprene isolation washers on every install north of I-80. Standard, not an upcharge.
Built for the Pennsylvania climate
Pennsylvania's climate issue is freeze-thaw cycling. Philadelphia averages 62 freeze-thaw days per year, Pittsburgh 68, Scranton 75, and Erie 78 (plus lake-effect snow). Each cycle drives moisture into rail mounting bolts as liquid, freezes it overnight, expands the bolt seating by fractions of a millimeter, and thaws again the next afternoon. Standard powder-coated brackets develop micro-fractures within 5 winters. Our PA spec uses hot-dip galvanized bracket hardware with sealed neoprene isolation washers and 304-stainless fasteners throughout — standard statewide. Erie and the northwestern counties get the additional cold-weather battery variant rated to -10°F because Lake Erie windchill drives real subzero events. Philadelphia's additional issue is urban heat — Center City rowhouses can hit 95°F ambient in July which stresses unsealed motor housings, so we spec IP54-rated motors for every Philly rowhouse install.