Trenchless Water Line Replacement in Delaware County, PA

The water service line — the buried pipe that carries water from the curb stop to your house — gets less attention than the sewer lateral until it leaks. Then the symptoms arrive fast: a hissing sound at the meter, a wet patch in the lawn that never dries, water pressure that drops for no reason, or a water bill that suddenly jumps. Replacing that line used to mean a trench from the street to your foundation. Trenchless methods replace it through two small pits instead.

What’s actually buried in Delco yards

The age of the house usually predicts the pipe. Homes from the early 1900s through the postwar years were typically plumbed with galvanized steel service lines, which rust shut from the inside — pressure loss at the tap is the classic symptom — or, in some older homes, lead. Copper became standard later and holds up well, but it can pit and pinhole in aggressive soil. If your home still has its original galvanized or lead service line, replacement is a question of when, not if. Lead lines in particular are worth replacing outright: no liner or patch addresses what the pipe itself is made of.

How trenchless replacement works

We dig two small access pits — one at the curb stop, one where the line enters the house. A new line, typically copper or HDPE rated for potable service, is attached to the old pipe and pulled through its path while a bursting or splitting head breaks the old pipe outward into the surrounding soil. The new pipe follows the exact route of the old one, full diameter, with no joints between the curb and the wall. Lawn, walkway, tree roots, and driveway above the run stay where they are.

Where the old line can’t be used as a pull path — a collapsed galvanized run, for instance — directional boring can push a new path between the same two pits. Either way, the surface disruption is limited to the two access points, and they’re backfilled and restored when the connection is made and tested.

Why this beats open-cut for a service line

A water service in this county commonly runs under a front walk, a porch footing, mature shrubs, or a paved driveway. Open-cut replacement prices in the restoration of all of it — concrete, asphalt, landscaping — on top of the pipe work. Trenchless replacement removes most of that restoration from the job. It’s also faster: a typical residential pull is done, connected, and pressure-tested the same day, and your water is off only while the final connections are made.

Who owns which part of the line

In most Delaware County municipalities, the water utility owns the main and the connection up to the curb stop, and the homeowner owns everything from the curb stop to the house. That’s the section we replace. If the leak turns out to be on the utility side, the camera and locate work will show that too — and that repair is the utility’s, not yours. You’ll know which side of the line you’re on before any work is scheduled.

Frequently asked questions

How do I know if my service line is leaking underground?
Shut off everything in the house and watch the meter. If it still turns, water is going somewhere between the curb and your fixtures. A soft, persistently wet area in the yard along the line’s path is the other common giveaway.

Can the new line be upsized?
Yes. Bursting can pull a larger-diameter pipe than the one it replaces, which is common when an old half-inch galvanized line is upgraded to modern three-quarter or one-inch service for better flow.

Does trenchless work if the old pipe is lead?
Yes — bursting is actually the preferred way to take a lead line out of service, because the old pipe is destroyed in place and the new line is an entirely new material, not a coating over the old one.

Find out what your line is made of

If your pressure has dropped, your bill has spiked, or your home is old enough to still have its original service line, call 1-855-DONT-DIG. We’ll locate the line, confirm the material, and give you a straight answer on whether it needs replacing now — serving all of Delaware County and the Main Line from Springfield and Aston.