Pipes are built to last for decades, and that is exactly why so few homeowners know how old theirs are or what they are made of. They went in long ago and have been hidden ever since. Every material has a working life, though, and along the coast several run shorter than the textbook figures. This post covers how to identify what is in your walls and under your floors, and how long each material tends to last here. It also covers what an aging system looks like from inside the house, and how to weigh repairs against repiping.
Identifying what you have
The easiest spots to see supply pipe are near the main shutoff, beneath the sinks, and in the crawl space or garage, and a flashlight usually settles the question in minutes.
- Copper looks dull orange or brown, with green or white crust at older joints, and in a damp crawl space that crust may run along the whole pipe.
- Galvanized steel is gray and threaded at the joints, often rusty at the fittings, and it is what many homes built before the 1960s in Norfolk and Portsmouth still carry.
- CPVC is a rigid cream or tan plastic, while PEX is a flexible plastic, usually red, blue, or white.
- Polybutylene is a gray, flexible plastic with copper or plastic fittings, and it earns a closer look for reasons covered below.
- Drain lines are white PVC, black ABS, or, in older houses, heavy dark cast iron with rust blooming at the joints.
How long each material lasts, and how the coast shortens it
Copper supply lines are good for 50 to 70 years in most places, with pinhole leaks the usual failure, but a crawl space kept damp by the high water table attacks copper from the outside while the water attacks from within. Galvanized steel serves 40 to 60 years and fails from the inside as corrosion narrows the bore, which is why old galvanized systems deliver low pressure and rusty water together. CPVC and PEX should last 50 years or longer, although PEX has not been in service long enough to prove it. Cast iron drains hold up 50 to 100 years but corrode along the bottom where wastewater sits, while a well-installed PVC drain will outlive the house. A well pump and pressure tank each last 10 to 15 years.
Polybutylene and the decades Hampton Roads grew
Polybutylene went into homes across the Southeast between 1978 and 1995, and Virginia Beach and Chesapeake grew enormously in those years, so a home from that period stands a fair chance of having it. The material reacts with chlorine in municipal water, grows brittle from the inside, and then fails at fittings or along the pipe with no warning. Aged polybutylene is not repairable, only replaceable, and many insurers will not write or renew coverage on a house that still contains it. Finding gray flexible pipe is not cause for panic, but it is cause for a phone call, and we are glad to talk through the options.
How an aging system shows itself
The signs tend to arrive in a pattern that is easy to live with for years. Leaks start appearing in different places rather than one spot, because the system is aging as a whole and a repair in one location shifts the strain to the next weak point. Pressure has slipped over time. The first water of the morning runs rusty. Exposed pipe in the crawl space shows crust or rust at its joints. Added up, the repair bills have grown. In a house with cast iron drains, look for clogs that recur, a sewer odor that lingers, or a soft place in a floor above a drain run. When two or more show up together, the whole system deserves an evaluation rather than another spot repair.
The rest of the system has a clock too
Pipe is not the only thing wearing out, since shutoff valves under sinks and behind toilets tend to freeze in place after 10 to 15 years of never being turned. Washing machine and dishwasher hoses should be swapped every five years or so. The pressure regulator at the main lasts 10 to 15 years, and a failed one can let pressure rise enough to strain every joint in an aging system. A tank water heater lasts 8 to 12 years, and many here sit in garages or crawl spaces where salty, damp air attacks the tank from outside. A plumbing inspection covers all of this, and members of the Premium Home Care Agreement receive one each year.
Weighing repair against repiping
The question is how many more repairs the system has left in it. A single pinhole in 30-year-old copper is a repair. A third leak in two years in 55-year-old galvanized steel argues for repiping, because each fix is buying months on a system that will keep failing, and every failure risks water damage that costs more than pipe. We help homeowners make that call with a pressure test and a look at the exposed runs, and on drain lines a camera inspection shows the pipe from the inside. Whole-house repiping sounds disruptive, and it is a sizable job, but PEX can be threaded through existing walls with fewer openings than most people expect, and it generally takes days rather than weeks. Financing is available, and the technician will explain both routes.
Deciding on your timeline
Russell’s American Mechanical has served Hampton Roads since 1977. If your house is more than 30 years old and its plumbing has never been evaluated, or if you have come across gray flexible pipe, schedule online, use the website chat, or call, and same-day appointments are available by phone when the day allows. We will identify what you have, describe its condition plainly, and lay out a plan at everyday pricing, so that when the plumbing reaches its milestone, the timing is yours.