Same-Day Service7 Days a WeekFree Estimate
Delmarva Plumbers
Delmarva Plumbers
Plumbing · Tools
Call
Free tool

Sewer Line Age Checker

Enter the year your home was built and see which sewer and water line materials it most likely has, how far along their service life they are, and whether a camera inspection makes sense.

Tap to Call(855) 321-3426

A real person answers. Free estimate, no obligation.

Instant estimate No sign-up One tap to a pro

Sewer Line Age Checker

Virginia · likely pipe materials by the year your home was built
low risk

Low risk for the age. Nothing here points at the sewer line right now.

In Virginia, about 51% of homes were built before 1980, so older pipe materials are common here.

Likely sewer line for a 1978 home
  • PVC or ABS plastic (about 50 to 100 years; at 48 years, inside its typical life). Glued joints keep roots out. When plastic lines fail it is usually settling, a crushed section or a poor original installation.
Likely water supply lines
  • Polybutylene (gray plastic) (about 10 to 25 years; at 48 years, past its typical life). A known-defective material. It degrades on contact with treated water and lets go at fittings without warning.
  • Copper (about 50 to 70 years; at 48 years, inside its typical life). Long-lived, but aggressive water and rushed joints cause pinhole leaks well before the end of the range.
What a camera inspection shows
  • The pipe material and diameter, and the route the line takes to the street or the septic tank
  • Bellies, the low spots where the pipe has settled and holds water and waste
  • Offset, separated or cracked joints
  • Homes built before 1986 may also have lead solder, and in some cities a lead service line. Your water utility keeps a service line inventory you can ask about.

Typical materials for the era, not an inspection of your pipes. Only a camera run shows what is actually underground, and a local plumber can do that and show you the video.

Typical materials for the era, not an inspection of your pipes. Only a camera run shows what is actually underground.

Data: InterNACHI Standard Estimated Life Expectancy Chart for Homes · documented material eras (Orangeburg 1945 to 1972, polybutylene 1978 to 1995, EPA 1986 lead solder ban) · US Census ACS 2023 housing age · Updated September 2026

How the era of a house predicts its pipes

Every era had a default material

Builders used what was standard at the time. Clay and cast iron before the war, Orangeburg fiber pipe in the postwar boom until 1972, cast iron drains until about 1975, then PVC and ABS plastic. On the water side, galvanized steel gave way to copper by 1960, polybutylene had its run from 1978 to 1995, and PEX took over after 2000.

Each material ages differently

Clay joints let roots in. Cast iron rusts from the inside until the bottom of the pipe channels through. Orangeburg softens and goes oval. Polybutylene lets go at its fittings without warning. The checker puts the age of your home against the charted service life of each material so you can see which ones are near the end.

Trees, frost and symptoms tip the scale

Large trees near a jointed line, ground that freezes and thaws every winter, and symptoms like slow drains everywhere, gurgling, backups or a soggy yard each raise the odds that the line has a problem right now. The risk class combines all of them.

A camera inspection ends the guessing

A plumber runs a camera from the cleanout through the line and records the material, the joints, any bellies, roots or breaks, and the exact distance to each. That video is what turns a full replacement question into a spot repair question, or clears the line entirely.

Common questions

What is Orangeburg pipe and how do I know if I have it?

Orangeburg is sewer pipe made of wood fiber pressed with tar, sold from about 1945 to 1972. It softens with age, flattens into an oval and lets roots in. Homes built in that window are the ones to check, and only a camera inspection confirms it.

Are polybutylene pipes a problem if they have not leaked yet?

Polybutylene, the gray plastic supply pipe installed from 1978 to 1995, degrades on contact with treated water and tends to fail at fittings with no warning. A home in that window deserves a look by a plumber even without a leak, and many insurers ask about it.

How long does a cast iron sewer line last?

About 50 to 60 years by the standard life-expectancy charts. Cast iron installed before 1975 is at or past that now. It fails from the inside, so the pipe can look sound while the bottom has rusted through.

What does a sewer camera inspection show?

The pipe material and size, the route to the street or septic tank, low spots that hold water, offset or broken joints, root intrusion, scale, and the exact distance from the cleanout to any problem. The plumber can show you the recording.

Do tree roots really break sewer pipes?

Roots follow moisture and find their way into joints on clay, cast iron and Orangeburg lines, then thicken until they block or split the pipe. Glued plastic joints keep roots out, though a large root can still crush a shallow line.

Does an old sewer line always need to be replaced?

No. Many old lines are cleared, spot-repaired or lined and go on working. The camera inspection is what separates a line with one bad joint from one that has failed along its length.

Get an exact answer from a local pro

Free to call — get connected with a local pro in your area.

Tap to Call(855) 321-3426

Keep going

Find a local plumberOpen the Septic Pumping CalculatorAll tools & calculators

disclaimer: Delmarva Plumbers is a free service to assist homeowners in connecting with local service providers. All contractors/providers are independent and Delmarva Plumbers does not warrant or guarantee any work performed. It is the responsibility of the homeowner to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All persons depicted in a photo or video are actors or models and not contractors listed on Delmarva Plumbers.

Same-day and 24/7 emergency services are subject to provider participation, location, technician availability, and demand. Availability is not guaranteed and may vary by market and appointment capacity.

We use cookies and session-based analytics, including session replays (with form inputs masked), to improve this site. See our Privacy Policy.

About · Contact · Privacy · Terms · Disclosure · Sitemap

© 2026 Delmarva Plumbers. All rights reserved.