Underground gas line installation using directional drilling in Greenville SC

Gas Services

Gas Line Installation & Replacement

Q: How much does a gas line installation cost?

Residential gas line runs typically cost $1,500 to $4,000 installed trenchless. Extensions to outdoor kitchens, pool heaters, or detached buildings often run $700 to $2,500. Commercial installations and high-volume service lines scale higher based on length, diameter, and code requirements.

Q: Do I need a permit for an underground gas line?

Yes. Natural gas line installation requires a permit in virtually every municipality across the Carolinas. We pull the permit, coordinate with your utility, and make sure the work meets all state and local gas code requirements — including pressure testing and inspection.

Q: How long does underground gas line work take?

Most residential gas line installs complete in a single day. Pressure testing and utility coordination can add a short delay before final sign-off. Larger commercial runs take 1 to 3 days.

Q: Is trenchless gas line installation safe?

Yes — and safer than most open-cut alternatives. HDD isolates the work zone to small entry and exit pits, avoids disturbing existing utilities, and follows a carefully steered path verified against 811 locates. All gas lines are pressure-tested before the utility is energized.

Safe, code-compliant underground natural gas line work — installed trenchless, pressure-tested, and permitted.

Sloan Underground Construction has been installing underground natural gas lines across the Carolinas since 1965. Gas line work demands precision, strict code compliance, and a crew that understands the stakes. We pull permits, call 811, bore trenchless with Ditch Witch rigs, and pressure-test every line before the utility energizes service. Residential gas installs typically run $1,500–$4,000 and finish in a day.

How much does underground gas line installation cost?

Residential gas service lines run $1,500–$4,000 installed trenchless. Extensions to outdoor kitchens, pool heaters, fire pits, or detached workshops typically $700–$2,500. Commercial and higher-volume service scales with length, diameter, and code. Permits, pressure testing, and inspections are included in every written estimate.

The Safe Way

Code, safety, precision

Trenchless Gas Line Installation — Why It's Safer

Traditional open-trench gas line installation means digging a continuous trench from the main to the meter — through lawns, driveways, and any landscaping in the way. That's weeks of surface disruption and real risk of striking other buried utilities along the run.

Horizontal directional drilling isolates the work to two small pits. Our crew calls 811, verifies every existing utility location, steers the pilot bore along a depth-verified path, and pulls the gas line through with controlled torque and speed. The line is pressure-tested before the utility energizes service, and the permit closes out on inspection.

What We Handle

Every Gas Line Scenario

Whether you're running gas to a new home for the first time, swapping out a corroded line, or extending service to an outdoor kitchen, pool heater, or detached workshop, we've installed it. Our crew runs residential service, neighborhood distribution work, restaurants, warehouses, office parks, and industrial sites across Upstate SC and Western NC.

Permit, bore, test, inspect — done right the first time.

Sloan Underground crew performing trenchless gas line replacement

Our Process

By the book

How a Gas Line Job Runs

Permit & 811

Pull the gas permit, call 811, verify existing utility locations.

Bore Path Plan

Mark entry and exit pits; finalize depth, bore length, and pipe material.

Bore & Pull

Drill the pilot, ream to size, pull the gas line through to the meter location.

Pressure Test & Inspect

Pressure-test the line, call the inspector, close the permit, restore the site.

Project Types

We've installed all of these

Gas Line Services We Provide

New Gas Line Runs

Connecting your property to the main gas supply underground.

Gas Line Replacement

Swapping corroded, leaking, or obsolete lines via HDD.

Service Extensions

Adding gas to pool heaters, outdoor kitchens, fire pits, workshops.

Residential Service

Safe, code-compliant installs for single-family homes and neighborhoods.

Commercial Runs

Restaurants, warehouses, office parks, and industrial facilities.

Emergency Replacement

Same-day response for leaking or failed lines.

Where We Work

Gas Line Work Across SC & Western NC

Serving Greenville, Spartanburg, Anderson, Pickens, Oconee, Laurens, Newberry, Lexington, Aiken, Asheville NC, and 15 cities total across the Carolinas.

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Gas Line FAQs

You asked, we answered

Common Questions About Gas Line Work

How much does a gas line installation cost?

Residential gas line runs typically $1,500–$4,000 installed trenchless. Service extensions to outdoor kitchens, pool heaters, or detached buildings often $700–$2,500. Commercial work scales with length, diameter, and code requirements.

Do I need a permit for an underground gas line?

Yes. Natural gas line installation requires a permit in every municipality we serve. We pull the permit, coordinate with your utility, and verify the work passes inspection and pressure testing before the utility energizes service.

How long does underground gas line work take?

Most residential gas installs complete in a single day. Utility coordination and pressure testing can add a short window before final sign-off. Commercial jobs run 1–3 days.

Is trenchless gas line installation safe?

Yes — and safer than most open-trench alternatives. HDD confines the work to small entry and exit pits, avoids disturbing existing utilities, and follows a steered, depth-verified path. Every line is pressure-tested before the utility energizes service.

Last Updated: April 2026