PEX vs Copper vs PVC: Plumbing Pipe Compared

PEX is flexible cross-linked tubing that installs fast, needs fewer fittings, resists scale, and — a real Michigan advantage — tolerates a freeze far better than rigid pipe before it bursts. It is the modern default for repipes and remodels. Copper is the long-proven rigid option: durable, heat-tolerant, and many homeowners trust its track record, but it costs more in both material and labor and can split if a line freezes. A good plumber will often recommend PEX for whole-home repipes and copper where its specific properties are needed.

PVC (and ABS) is the standard for drain, waste, and vent lines — lightweight, corrosion-proof, and far easier to work with than the old cast iron it usually replaces. In older Metro Detroit homes, aging cast-iron drains that are rusting through are frequently re-run in PVC. The catch is that proper slope and venting are everything on the drain side, which is exactly the part a licensed plumber gets right and an amateur botches.

A tank heater is cheaper to buy and install and keeps 40–50 gallons hot and ready — simple and familiar, but it loses standby heat and runs out on heavy demand. A tankless unit heats water on demand, never runs out, saves space, and lasts longer, but costs more up front and often needs upsized gas and new venting. For a big household with high simultaneous demand, tankless shines; for a smaller home on a budget, a quality tank is the practical pick.