Gas Line Services by RO Unlimited
RO PlumbingGas Line Services

Safe. Tested.
Code-Compliant.

Gas work requires zero tolerance for error. RO's licensed plumbers install, repair, and extend natural gas and propane lines for stoves, dryers, water heaters, fireplaces, generators, and outdoor grills. Every connection is pressure-tested, leak-checked, and inspected. We don't cut corners on the one system in your home where shortcuts can be fatal.

Everything You Need to Know

Gas Line Services
Guide

01

What We Do

We install new gas lines, extend existing lines to new appliance locations, repair leaks, replace corroded sections, and hook up gas appliances. Common projects: running a gas line to a new stove (from electric conversion), adding an outdoor gas grill connection, hooking up a gas dryer, connecting a gas fireplace or fire pit, and running gas to a standby generator. All work is permitted and inspected.

02

Materials & Methods

Residential gas lines use black iron pipe (the traditional standard), CSST (corrugated stainless steel tubing — flexible, faster to install), or in some cases copper. CSST has become the preferred method for interior runs due to faster installation and fewer joints. All connections are made with approved fittings, threaded joints use pipe compound (not Teflon tape on gas), and every line is pressure-tested before gas is turned on.

03

Sizing, Permits & Inspection

Three things size a gas job. First, the run distance from the meter or existing supply to the appliance. Second, the total BTU load of everything downstream, which sets pipe diameter — undersize it and the appliance starves no matter how new it is. Third, what the line has to pass through: an open crawlspace or unfinished basement run is straightforward, while a run crossing finished walls, a floor system, or a slab means penetrations, fire-caulking, and patching. Every branch to an additional appliance adds another shutoff, another drip leg, and another joint to test. Then there's the paperwork, and it changes with where you live. In South Carolina, a permit is required for all new gas work, and the inspection it triggers is what allows gas to flow. We hold licenses in South Carolina, North Carolina, and Georgia, and each state — often each county inside it — runs its own permit and inspection process, so the filing path shifts even when the pipe work is identical. Whichever jurisdiction you're in, the permit fee is written into the quote. Schedule around the inspector, not just us — we pull the permit before we start and call for inspection as soon as the pressure test passes, but the appliance stays off until it clears.

04

Safety First

Natural gas is odorized with mercaptan (rotten egg smell) specifically so leaks are detectable. But even small leaks in enclosed spaces create explosion risk. We pressure-test every installation at 1.5x operating pressure and hold the test for a minimum of 15 minutes. Every joint is soap-tested. No gas flows until we're certain the system is tight. Gas work is one area where "good enough" doesn't exist.

See the Work

Gas Line Services Gallery

Call Us If You See This

Warning
Signs

Rotten egg or sulfur smell near gas appliances

This is the mercaptan odorant added to natural gas. Even a faint smell means gas is escaping somewhere. Open windows, don't operate light switches, and call immediately. If the smell is strong, leave the house and call 911.

Hissing sound near a gas line or appliance

A hissing sound indicates gas escaping under pressure. This is a serious leak requiring immediate attention. Don't try to find or fix it yourself.

Dead or dying vegetation in a line above a buried gas line

Underground gas leaks displace oxygen in the soil, killing grass and plants above the leak path. If you see a strip of dead vegetation in your yard, it may follow a gas line route.

Pilot lights that won't stay lit

A pilot that repeatedly goes out may indicate a faulty thermocouple (simple fix) or inadequate gas pressure in the line — which means the supply line may be undersized or partially blocked.

Yellow or orange burner flames instead of blue

A properly burning gas flame is blue. Yellow or orange flames mean incomplete combustion — the gas-air mixture is wrong. This produces carbon monoxide and needs immediate adjustment.

Higher-than-expected gas bills

A slow gas leak can increase your bill without producing an obvious smell. If your gas usage spikes without a change in habits, have the system pressure-tested.

Protect Your Investment

Maintenance
Tips

How We Do It

Our
Process

01

Consultation & Planning

We evaluate where the gas line needs to go, measure the run distance, determine pipe sizing (based on total BTU load), and plan the routing to minimize wall penetrations and visible pipe.

02

Permitting

We pull the gas permit from the local authority. This is non-negotiable — unpermitted gas work is dangerous, illegal, and voids your insurance. The permit fee is included in our pricing.

03

Installation

The gas line is run from the existing supply (or meter) to the appliance location using black iron pipe or CSST. Branch lines, shutoff valves, and drip legs are installed per code. All joints are made with approved methods.

04

Pressure Testing

We pressurize the new line to 1.5x operating pressure (typically 6 PSI for a 4 PSI system) and hold the test for a minimum of 15 minutes. Every joint is soap-tested for bubbles. Zero leaks is the only acceptable result.

05

Inspection & Appliance Connection

The local inspector verifies our work meets code. Once passed, we connect the appliance, verify proper flame and operation, check venting, and walk you through the new shutoff valve location.

Scope & Longevity

What Drives the Number

Material / Service
What Moves It
Lifespan
Gas Line Run (20–30 ft)
Distance, BTU load, and how many walls or floors it has to cross
30+ years
Gas Line Extension (50+ ft)
Long runs need larger pipe, and every branch adds a shutoff
30+ years
Gas Appliance Hookup
Connector length, shutoff condition, and whether venting has to change
N/A
Gas Leak Repair
Finding it is the work — buried line or wall cavity takes longest
20+ years
Gas Permit
Set by the local authority; written into every gas quote we give
N/A

Prices are estimates for Upstate SC — get a real quote for your project.

Common Questions

FAQ

Gas Line Services — RO Unlimited
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Get Your
Quote

Call us directly or request a quote online. No pressure, no upselling — just honest answers about your gas line services needs.

(864) 304-0139