Sewer Lines in New Hampshire, New Jersey & Southern Maine

The one pipe with no backup plan

Every drain in the house eventually merges into a single pipe, the sewer lateral, that runs under your yard to the municipal main in the street or out to a septic tank. Branch drains have alternate paths. The lateral does not. When it clogs, cracks or collapses, waste stops leaving the building, and it reappears at the lowest fixture you own.

Our work covers that entire run. Camera inspection to see what is actually happening underground, cabling and hydro jetting to clear roots and grease, electronic locating to mark the exact spot and depth of a defect, spot repair on a single failed section, and full replacement when the pipe is past saving. We also add cleanouts, the access point a lot of older homes were built without.

What a failing lateral looks like from inside the house

One slow sink is a branch problem. A lateral problem shows up in more than one place at once, and it starts at the lowest drain in the building.

• The toilet gurgles or its water level drops when the washing machine drains
• Two or more fixtures back up at the same time
• The same clog returns every few months no matter who cleared it last
• Sewage odor in the basement, or a wet, unusually green stripe across the lawn
• A dip or soft spot in the yard along the path to the street
• Backups that spike after heavy rain, which means groundwater is getting in through cracks

Recurring is the word to watch. A cable machine punches a hole through a root mass and the drain runs again, but the roots are still in there and thicker each season. If the same line has been snaked twice, the pipe is telling you something a camera confirms in about twenty minutes.

We look before anyone digs

Nothing gets quoted from a guess. The visit starts by opening the line enough to pass a camera, then running it the full length to the main or tank while you watch the screen with the technician. Roots, a crushed section, a separated joint and a low spot holding standing water each look different on camera, and each one points to a different repair.

Once we find the defect, a transmitter in the camera head lets us mark its exact position and depth on the surface. That is the difference between opening one section of lawn and trenching the whole yard. You keep the footage, worth having for a real estate deal, an insurance claim or a talk with your town.

Spot repair or the whole lateral

One broken joint under open lawn is a spot repair. Dig, cut out the failed section, sleeve in new pipe, backfill, done. The math changes when the camera shows trouble along the entire run, which is normal for vitrified clay laid in short mortared lengths and for Orangeburg, the tar and wood fiber pipe used in postwar construction that deforms into an oval and fails as a unit, not at one point.

Cost follows the excavation, not the pipe. Depth, total footage to the main, and what sits on top of the line all move the number. A lateral running under a driveway, a mature maple or a finished patio is a bigger job than one under grass, and deep trenches need shoring. Where opening a trench would wreck hardscape, trenchless lining rehabilitates the pipe from the inside through existing access points. Our trenchless sewer lining page covers when that works and when it does not.

Old clay, high water, and who owns the pipe

Housing stock across New Hampshire and southern Maine skews old, and old means clay tile with mortared joints or cast iron rusting from the inside until the bottom of the pipe is gone. Both leak at the joints, and leaking joints are exactly what tree roots follow. Frost runs deep here, so laterals sit deep, and decades of freeze and thaw work the ground into the offset joints and bellies a camera picks up. Along the Jersey Shore the pressure runs the other way. High water tables and coastal flooding force groundwater into cracked pipe, and sandy soil washes out from under the line, leaving a sag that collects solids.

Ownership surprises people. In most towns across our footprint you own the entire lateral, including the length buried under the public street, right up to where it ties into the municipal main. The town maintains the main and nothing upstream of it. Some municipalities take over at the curb or the property line instead, and some sewer authorities require their own inspection before backfill. We confirm the rule with your town and pull the permit before work starts.

Why homeowners hand us the shovel

Sewer work is where the temptation to oversell is highest, because the customer cannot see the pipe. So you watch the camera feed with the technician, you keep the video, and you get the price before anything is opened.

High Ground is veteran-owned, with licensed plumbers across New Hampshire, northern and central New Jersey, and southern Maine. Permits pulled, inspections passed, and every repair carries our Lifetime Workmanship Guarantee. If something we installed fails, we come back and make it right. A person answers the phone, and we get out same day when we can, because a backup does not wait for a callback.

Related Plumbing services

• Leak Detection
• Water Heaters
• Drain Cleaning
• Trenchless Sewer Lining
• Repiping