Trenchless Water Line Replacement in Delaware County, PA

The water service line runs from the curb stop at the street to the point it enters your house — typically twenty to sixty feet of buried pipe that most homeowners never think about until something goes wrong. When it does go wrong, the symptoms arrive quickly: unexplained pressure loss at fixtures throughout the house, a wet spot or persistently soft patch in the yard along the line’s path, a water meter that continues spinning after everything inside is shut off, or a sudden jump in the water bill with no change in usage. Replacing that line used to mean an open trench from the street to the foundation. Trenchless methods accomplish the same result through two small access pits while leaving the surface above the pipe intact.

Advanced Drains and Underground Solutions performs trenchless water line replacement for residential and commercial properties throughout Delaware County, PA.

What is typically buried in Delaware County yards

The age of the home is the most reliable predictor of what the service line is made of. Homes built from the early 1900s through the 1940s — common in Drexel Hill, Sharon Hill, Glenolden, Collingdale, Lansdowne, and neighboring communities — were often plumbed with galvanized steel service lines. Galvanized corrodes from the inside, progressively reducing interior diameter until water pressure is noticeably poor and eventually fails. Some homes from this era, and some older properties in Ambler and the Main Line corridor, have lead service lines. Lead lines are worth replacing outright: no liner or partial repair addresses the material itself, and the EPA’s Lead and Copper Rule revisions have accelerated municipal programs to document and replace them.

Copper became the standard material in the 1950s and is found in most homes built from that era through the 1990s. Copper holds up well but can develop pinhole leaks in aggressive soil conditions or at fittings. Where copper is leaking at a fitting or showing isolated pinhole damage, the entire line does not always need to be replaced. Our camera and pressure diagnostics locate the failure before we recommend any scope of work.

How trenchless replacement works

We dig two small access pits — one at the curb stop and one at the point the line enters the foundation. A new water line, typically copper or NSF-rated HDPE for potable service, is attached to the old pipe and pulled through the pipe’s existing path while a bursting or splitting head fractures the old pipe outward into the surrounding soil. The new pipe follows the exact route of the old one at full diameter with no joints between the curb connection and the house wall. The surface above the run — yard, walk, driveway, plantings — is untouched except for the two access points, which are backfilled and compacted when the connection is made and pressure-tested.

Where the old line cannot be used as a pull path — for instance, a galvanized run that has collapsed internally — directional boring can create a new path between the same two pits. Either way, excavation is limited to the two endpoints.

Aqua Pennsylvania and municipal authority connections

Most of Delaware County’s water service is provided by Aqua Pennsylvania or a local municipal authority. The utility owns the main in the street and the connection up to and including the curb stop. The homeowner owns the service line from the curb stop to the house. That is the section we replace. If the camera and pressure test indicate the failure is on the utility side of the curb stop, that repair belongs to the utility — and our diagnostics will document that finding so you have something to bring to them. A permit from Aqua or the local authority is typically required before work on a line that terminates at their curb stop connection. We determine permit requirements for each job by municipality and pull any required permits before the excavation begins.

Frequently asked questions

How do I confirm the service line is leaking underground and not somewhere inside the house?
Shut off every fixture and appliance in the house, then watch the water meter. If the dial or digital readout continues moving, water is escaping somewhere between the meter and your supply fixtures. A persistently wet patch in the yard along the approximate path from the street to the house is a secondary indicator. We run a pressure test and camera diagnostic to locate the failure point before we open any access pits.

Does a trenchless replacement disturb the driveway?
The new pipe follows the existing pipe path, and the two access pits are typically at the curb and at the foundation wall — before and after the driveway, not in the middle of it. In most cases the driveway surface is not touched. If the pipe’s path runs directly under a portion of the driveway and there is a reason to divert from that route, we discuss it during the estimate stage.

How long does the job take?
A typical residential service line pull is completed in one day. Your water will be off while we make the final connections — usually a window of two to four hours during the midpoint of the job. We confirm the schedule and the outage window at the time of booking so you can plan accordingly.

Call 1-855-DONT-DIG or use the contact form to schedule a water line diagnostic and replacement estimate in Delaware County, PA.