One Street, One Generation of Pipe

The subdivisions of each construction wave went in together, and their plumbing did too, so the material behind your drywall almost certainly matches the material behind your neighbor’s. That matters because pipe generations have measurable working lives: InterNACHI’s standard life expectancy chart, the home inspection association’s published reference, puts copper water lines at roughly 70 years and PEX at 40, with the caveat that those figures assume normal conditions, and North Texas water and pressure are the kind of conditions that bend the curve.

Read together, the two facts turn your street into an early-warning system. When plumbing trucks start appearing on a block built in one wave, that is not coincidence, it is the shared generation reaching the same stretch of its curve, and it is the cheapest diagnostic information a homeowner will ever get.