Trenchless Sewer Line Replacement in Portsmouth

Repair or replace? What the camera settles in Portsmouth

Nobody should quote a sewer line in Portsmouth without first putting a camera through it, and the footage answers one question before any other: is the pipe still a pipe? A cracked, root-filled, joint-leaking line that still has its round section and its fall to the main can be rebuilt in place with a liner. A line that has collapsed, flattened, dropped into a belly or been pushed out of grade by a root ball cannot be lined back into shape; that one gets burst and replaced with new pipe along the same path. Either way the yard stays closed up. The difference is in what the contractor pulls through the old line.

What is under Portsmouth homes

Southern cities grew fast and built on sand, red clay and, near the coast, on fill over wet ground. Cast iron does not last here; in humid, acidic soil it can lose its bottom in forty years, and the house drains under a slab are usually the first to go. Clay tile and Orangeburg are common in the older neighborhoods, PVC in anything after 1980.

A high water table and daily summer storms mean a leaking joint infiltrates as much as it exfiltrates, washing fines out of the bedding until the pipe loses support and sags. Live oaks and pines hunt for that water, and hurricanes rearrange the surface overnight.

Under-slab cast iron is lined in place rather than cut out of the floor. A sagging clay or Orangeburg lateral in sand gets burst and replaced with HDPE, which does not care about the water table and offers roots no joint to enter.

How a no-dig replacement goes in Portsmouth

The crew locates the line from the cleanout to the city connection and marks the depth at each defect the camera found. For bursting, two pits are opened: one at the house end, one at the property line or the main. A steel cable is fed through the old pipe, a bursting head is attached with a length of fused HDPE behind it, and a hydraulic puller draws the head through. The old pipe shatters into the surrounding ground and the new one occupies the same route at the same depth. The two ends are connected, the city inspects the tie-in, and the pits are closed the same day.

For a structural liner the run is jetted clean and measured, then a resin-soaked tube goes in from the cleanout by pull or inversion. Pressure holds it to the host wall while hot water or steam cures it, and what remains is a smooth, seamless pipe nested inside the original. A cutter working from inside reopens any branch lines. Water is off for the cure and back on the same afternoon.

Permits, inspections and the part in the street

Replacing a lateral in Portsmouth normally takes a plumbing permit, and the section between the property line and the main may belong to the city or the utility, which means a right-of-way permit and a scheduled tie-in inspection. A trenchless contractor who works Portsmouth regularly knows which agency owns that last stretch, pulls the permits as part of the job and books the inspector around the day of the pull. A quote that leaves permits out is not a complete quote.

Who replaces sewer lines in Portsmouth

Environmental Pipe Cleaning, Inc. holds the Portsmouth territory as its CIPP Verified installer. Verification through curedinplacepipe.net means the license, the lining and bursting equipment, and completed jobs have been checked, not just a listing paid for. Dial (877) 955-6399 or send the form; the camera run and a written quote naming the method come before any work. More about Environmental Pipe Cleaning's work in Portsmouth →

Common questions from Portsmouth owners