Water Line Replacement Greenville SC
Trenchless water line and gas line replacement — no open trench, no yard destruction. Same-day service available.
Sloan Underground Construction replaces corroded, leaking, and failing water lines and gas lines across the Carolinas using trenchless horizontal directional drilling. Since 1965, we've swapped out thousands of aging galvanized water lines, failing polybutylene, corroded steel gas service, and undersized mains — with two small pits and no open trench. Most residential water line replacements cost $1,800–$4,500 and finish in a single day. Natural gas line replacements typically $1,500–$4,000 with permits pulled and pressure-tested to code.
How much does water line replacement cost in Greenville SC?
Residential water line replacements in Greenville and Upstate SC typically run $1,800–$4,500 installed trenchless. Runs crossing under roads or driveways, longer distances, larger diameters, or commercial mains scale higher — commercial work typically $6,000–$30,000+. Natural gas line replacements generally run $1,500–$4,000 for residential service. Every job starts with a free written estimate within 24 hours.
When It's Time to Replace Your Water Line
Galvanized steel water lines corrode from the inside out. Polybutylene cracks. Copper pinholes. Old steel gas lines rust through. When the line is leaking, delivering rust-colored water, or causing pressure drops throughout the house, patching it is temporary — replacement is permanent.
Traditional replacement means an open trench from the meter to the house: weeks of disruption, thousands in surface restoration, and a yard that looks like a war zone. Our trenchless method bores a path underground and pulls the new line through — driveways, patios, flower beds, and hardscape stay exactly where they were.
Two small pits. New line. One day. Your yard stays intact.
Underground Lines We Replace
Galvanized Water Lines
Corroded steel from the 1940s–1980s that delivers rust-colored water and pinhole leaks.
Polybutylene & PEX
1970s–1990s plastic lines that crack and leak when exposed to chlorine or UV.
Steel Gas Service Lines
Aging underground gas lines that rust, leak, or no longer meet code.
Copper Water Mains
Older copper that develops pinhole leaks from corrosive soil or water chemistry.
Undersized Service
Lines that can't meet current demand — replace with larger-diameter HDPE or PVC.
Emergency Leaks
Burst lines, active leaks, or lines failing inspection — same-day response available.
Our Trenchless Replacement Process
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01
Free Assessment & Quote
We assess the existing line, walk the property, and provide a written estimate — usually within 24 hours. For gas lines, we verify permit requirements with your municipality.
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02
811 Locate & Plan
All existing utilities are marked. We finalize the bore path, entry and exit pits, and material choice (HDPE, PEX, or PVC).
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03
Directional Bore & Pullback
The Ditch Witch rig drills the path; the new line is attached to the reamer and pulled through. The old line is either pulled out or abandoned in place, depending on condition and code.
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04
Connect, Test, Restore
We tie the new line in at both ends. Water lines are pressure-tested for leaks. Gas lines are pressure-tested and inspected before the utility energizes service. Entry and exit pits are restored and the site is cleaned.
Why Directional Boring Beats Open-Cut Replacement
- No yard destruction — driveways, patios, flower beds, and trees stay intact.
- One-day install — most residential replacements finish in under 8 hours.
- No restoration costs — no regrading, reseeding, or repaving required.
- Lower total cost — trenchless is typically 30–50% cheaper than open-cut when restoration is factored in.
- Safer for existing utilities — steered bore avoids other buried lines; open trenching risks striking them.
Serving Greenville, Spartanburg & the Carolinas
We replace water lines and gas lines across 15 Carolina cities including Greenville, Spartanburg, Anderson, Pickens, Oconee, Laurens, Newberry, Lexington, Aiken, and Asheville, NC. Based in Greenville SC — our crews are local and our trucks are already in your area.
View All Service Areas →Common Questions About Water & Gas Line Replacement
How much does water line replacement cost in Greenville SC?
Residential water line replacements in Greenville and Upstate SC typically run $1,800–$4,500 installed trenchless. Natural gas line replacements generally $1,500–$4,000 for residential service. Cost factors include line length, diameter, depth, crossing obstacles (driveways, roads), and whether permits or inspections are required. Every job gets a free written estimate.
Can you replace a water line without digging up my yard?
Yes. We use trenchless horizontal directional drilling — a small entry pit at one end, a small exit pit at the other, and the new line bored underground between them. Driveways, landscaping, patios, and hardscape stay intact. No open trench, no weeks of disruption, no thousands in surface restoration.
How long does a trenchless water line replacement take?
Most residential water line replacements finish in a single day — often under 8 hours start to finish. Commercial mains or longer runs may take 1 to 3 days. Gas line replacements follow a similar timeline, with extra coordination for utility shutoff, pressure testing, and inspection before the gas company re-energizes service.
What types of pipes do you replace?
All underground utility materials: corroded galvanized water lines, failing polybutylene, aging copper, old steel gas service, and obsolete or undersized mains. The new replacement line is typically HDPE, PEX, or PVC — material choice depends on code, pressure rating, diameter, and soil conditions.
Do you replace gas lines and water lines the same way?
The trenchless boring method is identical. Gas line replacement requires permit coordination with your municipality, mandatory pressure testing, and inspection sign-off before the utility energizes service. Water line replacements generally do not require permits unless crossing a public right-of-way.
Last Updated: July 2026
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Learn More →Horizontal Directional Drilling
The steerable trenchless method behind every replacement we install.
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