Cast Iron Pipe Replacement

Cast iron was the standard for drain and sewer piping for much of the 20th century, and millions of homes still depend on it. Inside, the story is less reassuring: decades of wastewater flow build up rough tuberculation — rust scale that narrows the pipe and snags debris — while the pipe wall itself thins until cracks and holes appear. The first signs are frequent clogs from the rough interior, then leaks at the hubs, then channels rusted clean through the bottom of horizontal runs. A camera inspection tells the tale plainly, showing scale, cracks, and missing sections.

When deterioration is widespread, patching individual spots becomes a losing game and replacement is the honest recommendation. Modern PVC or ABS pipe is smooth, jointless over long runs, and immune to the corrosion that doomed the iron. Replacement may run inside the home — vertical stacks and horizontal branches — or underground for the building sewer, sometimes both in the same project. FlowFast Plumbing is a referral service — we connect you with an independent local plumber who can camera your cast iron, show you its real condition, and lay out a replacement plan that fits your home.