Cast-iron DWV stacks in Bay Ridge's 1910s brick two-family rowhouses have typically been in continuous service for over 100 years and are approaching or past functional end-of-life. The interior of century-old cast iron accumulates mineral scale and corrosion that narrows the effective diameter and causes recurring slow drains that cannot be cleared by snaking alone. In attached brick rowhouse construction, the drain stack typically runs inside the masonry wall shared between floors, which complicates access and means opening plaster or tile finishes. We Pipe will camera-inspect the stack before recommending full replacement versus sectional repair — because some cast-iron in these buildings remains structurally sound even at this age. Where replacement is needed, the work is done in sections coordinated with the building occupancy, since both units of a two-family share the same primary stack. Modern no-hub cast iron or schedule 40 PVC is appropriate for replacement depending on the specific run.
Brown or rust-colored water in Bay Ridge's 1899-1920s rowhouses and two-family homes is overwhelmingly caused by deteriorating galvanized steel supply piping rather than a main water quality issue. Galvanized steel corrodes from the inside out, and 100-year-old pipe in these buildings has an interior layer of rust and mineral deposit that releases into the water stream when pressure fluctuates — during neighbor usage, a fire hydrant flush, or seasonal pressure changes. The supply lines in these buildings were never replaced in most cases, meaning the rust problem is structural to the pipe rather than a passing event. We Pipe will run a pressure test and flow test to determine whether the galvanized is compromised throughout or only in specific branch runs. Full repiping to copper or PEX is the permanent solution; partial replacement of the worst sections can provide interim relief but does not address the corrosion in untouched runs.
Repiping a detached single-family home in Bay Ridge — typically a 1900s-1920s wood-and-brick construction — involves different considerations than the attached two-family rowhouse stock that dominates the neighborhood. Detached homes give the plumber access to exterior walls from outside and do not require coordination with an adjacent attached unit, which reduces the scope of wall opening needed. Supply lines in these homes are almost universally original galvanized steel, and after 90-100 years the inside bore is often reduced by half from mineral accumulation. We Pipe prices full repipes by fixture count and run length, with access difficulty as the primary variable — finished basements and tiled bathrooms increase labor cost. Copper is the standard replacement material in this era home; PEX is appropriate for straight runs in unconditioned spaces but requires transition fittings at fixtures. A full repipe on a Bay Ridge detached single-family typically takes two to three days.
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