Roofing contractors in Allentown, Pennsylvania
Allentown is a city of row homes and twins, which means most roofs here do not stop at the property line. What happens at the wall between two houses decides more than what covers them.
What Allentown roofs are dealing with
Center City and the South Side are dense with attached brick housing from the last decades of the nineteenth century and the first of the twentieth. On a row, the roof is a continuous plane crossing several owners, and the party wall that separates them rises through it. That junction is where water gets in, and it belongs to two households at once.
The West End and the outer wards are later and detached, with steeper gables and the slate that local quarries made ordinary here. Those roofs are a century old and reaching a decision point together, which is a scheduling problem as much as a technical one.
Center City and the South Side are rows and twins of brick from the turn of the last century, where the roof is a continuous plane crossing several owners and the party wall rises through it. The West End and the outer wards are detached, steeper, and heavily slated by local quarries.
Not sure how much life is left up there? The roof age check walks the envelope part by part, which matters more here than a single number for the whole roof.
Covering South Side, West End, Center City, East Side, Midway Manor and the rest of Allentown.
- 1 The ridge. The highest course, and on slate the one most often reset by hand.
- 2 The field. Slate on the older stock, shingle on the rest. Two very different clocks.
- 3 Valleys. Where leaf litter settles, and where a slate roof usually ends its life.
- 4 Wall flashing. The party wall of a row or twin, rising through a roof two houses share.
- 5 Penetrations. Holes cut on purpose. When access is awkward they get sealed instead of rebuilt.
- 6 The overhang. Where meltwater from a warm attic reaches cold framing and stops.
When the work happens in Allentown
Work runs from spring into late autumn, and on attached housing the schedule has an extra constraint: the street. Container placement and protection for the neighbours on both sides have to be arranged, and in the denser wards that can mean a permit and a date rather than simply a van arriving.
What moves the price in Allentown
On a row, the party wall flashing decides it: rebuilt metal outlives the covering, sealant does not, and the two prices are far apart. On the detached side the question is the slate itself — repair, replace in kind, or change material — and those three answers differ by an order of magnitude.
On housing this old the price is settled underneath rather than on top. Five questions get there faster than comparing product brands, and if two or three quotes are already in hand, the quote comparison checklist puts them side by side:
- Is the sheathing solid, or spaced boards that need a new surface first?
- What is the per-sheet rate for decking, agreed before the roof is opened?
- Is the shallow rear section specified separately from the front slope?
- Is the flashing at a shared wall rebuilt, or sealed against the neighbour?
- What happens to any sound copper that comes off the roof?
The work
Before you call anyone in Allentown
A few questions come up on nearly every older roof around here, and the answers do not change from one city to the next, so they are written once, in the guides, with figures measured for this area:
Why roofs fail here
Six failures account for most of what gets reported in this valley, and each one has its own page. Where a stain appears inside is rarely above where the water came in.