Last updated: 2026-10-10
South Carolina Plumbing is a referral service that connects South Carolina homeowners and property managers with participating independent plumbers for sewer line repair. Not every participating plumber does sewer replacement work, so confirm when you're connected. This page covers the warning signs, the repair options, and who's responsible for which section of pipe.
Who owns the sewer line?
The pipe that runs from your house to the public sewer main is called the sewer lateral. In most places, including most South Carolina utilities, the property owner is responsible for maintaining and repairing it; the utility owns the main in the street. Exactly where your responsibility ends varies by utility, so check with yours.
Some utilities are starting to help. In a February 2026 settlement with Charleston Waterkeeper over sewer overflows, Charleston Water System committed to recommending a grant program to help homeowners repair or replace leaking private sewer laterals, with proposed funding of $50,000 a year for five years (SELC).
Why sewer lines fail
- Tree roots find cracks and loose joints and grow into the pipe.
- Old pipe materials. Clay, cast iron, and fiber (Orangeburg) sewer pipe were common in older homes and are prone to cracking, corrosion, and collapse. In Greenville's Mills Mill village, sewer lines are clay pipe more than 100 years old, and the local sewer district is spending about $13 million to replace them (Greenville Journal).
- Bellies: sagging sections where soil settled, which hold water and waste.
- Grease and wipes building up into recurring blockages.
- Ground movement and heavy vehicles over the line.
How sewer problems are diagnosed and repaired
A camera inspection is the starting point. A plumber runs a waterproof camera through the line from a cleanout and records where roots, cracks, bellies, or breaks are and how deep the pipe is. Ask for the recording.
Repairs range from cutting roots and jetting the line, to a spot repair of one section, to trenchless methods such as pipe lining (a resin liner cured inside the old pipe) or pipe bursting (pulling new pipe through the old one), to full excavation and replacement. Sewer replacements usually require a permit.
When to call a plumber
- Several drains back up or slow down at the same time
- Sewage comes up through a floor drain, shower, or lower toilet
- You smell sewage indoors or in the yard
- A soggy, sunken, or unusually green patch appears over the sewer line
- Clogs keep returning after drain cleaning
- You're buying an older home: a sewer camera inspection is worth considering
What sewer line repair costs
HomeAdvisor's 2026 data puts sewer line repair at $1,390 to $5,300 (HomeAdvisor, 2026). Root cutting and camera inspections cost far less; full replacement of a long or deep line costs more.
- Length and depth of the line
- Repair method: spot repair, lining, bursting, or excavation
- What's on top: lawn, driveway, landscaping, or a slab
- Permits and any required connection work at the main
Safety and what to do while you wait
- Stop using water if sewage is backing up: no flushing, showers, laundry, or dishwasher.
- Keep everyone away from sewage and wear gloves if you have to touch anything it reached.
- Find the outdoor cleanout so the plumber can access the line.
- Call your sewer utility if neighbors are backing up too; the problem may be in the public main.
- Photograph any damage for insurance. Sewer backup is often covered only by a specific endorsement.
Questions to ask the plumber
- Is your South Carolina plumbing license current? (Check it free on the SC LLR license lookup.)
- What's the service call fee, and is it credited toward the repair?
- Will you give me the price in writing before you start?
- Can I see the camera inspection video?
- Is the problem on my side or the utility's side?
- Is trenchless repair an option for my line, and what's the warranty?
- Does this job need a permit, and will you pull it?