Residential Gas Piping
Whether you are adding a gas range, an outdoor kitchen, or a standby generator, the gas line has to be sized, routed, and tested correctly. We install new lines, extend existing ones, and repair leaks in homes across the Triangle.
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Do not flip light switches, use the phone inside, or try to find the leak. Get everyone and every pet outside, then call your gas utility or 911 from outside the house. Once the area is safe, call us for the repair. Gas work is for licensed professionals only.
Gas Line Installation
A gas appliance only works safely when the line behind it is the right size for the load. A range, a dryer, a fireplace, and a whole-home generator all draw different amounts of gas, and the pipe has to carry the combined demand without losing pressure.
We plan the route, size the pipe, and install it in black iron or corrugated stainless steel tubing (CSST), depending on the home and the run. Black iron is the traditional choice for rigid runs. CSST flexes through tight framing and is common in newer construction and retrofits.
Every new line is pressure tested before an appliance is connected. Where the town requires a permit and inspection, we pull the permit and schedule the inspection, so the work is documented and checked. We also leave the gas shutoff and the new appliance connections clearly accessible, so you know where to turn the supply off.
Many homes in Apex, Cary, and Holly Springs run on natural gas from the street. Outlying homes often use propane from a tank. We work with both, and the fuel changes the regulators, the pipe sizing, and the appliance settings.
Most gas line projects start with a new appliance or a change to the home. A few start with a problem that needs a closer look.
A new range, outdoor grill, fire pit, or fireplace usually needs a new line or an extension of an existing one. We check the capacity of your current gas supply first so the new appliance does not starve the ones already running.
A standby generator or a tankless water heater can demand far more gas than the old line was built for. We size the supply to the new load and tell you plainly if the existing piping or meter capacity is not enough.
Corroded fittings, a damaged line after yard work, or a failed connection at an appliance can all cause leaks. If you smell gas, leave the home and call from outside. After the area is safe, we find the source and repair it.
Clear Answers
Let us know the appliance, where it will sit, and whether the home uses natural gas or propane. Photos of the meter, tank, or existing gas lines help.
We choose the route and the pipe material, size the line for the total load, and install it. Permits are handled where the town requires them.
We pressure test the new line and check every joint. Then we connect the appliance and confirm it runs correctly.
Sweetwater Plumbing serves homeowners in Apex, Cary, Holly Springs, Morrisville, Raleigh, Durham, and Chapel Hill.
Helpful Details
Often, yes. Requirements vary by town and by the scope of the work. We handle permits and schedule inspections where they are required.
Yes. We extend an existing gas line or run a new one to the outdoor location, then pressure test it. We also check that your gas supply can handle the added appliance.
Black iron is rigid steel pipe that is threaded and assembled in sections. CSST is flexible stainless steel tubing that is easier to route through finished walls. We recommend one or the other based on the home and the run.
Homes served by gas mains in town are usually on natural gas. Outlying homes often use propane from a tank on the property. Check for a gas meter or a tank, or ask us to confirm during the visit.
Leave the home right away with everyone inside, including pets. Do not touch light switches or use the phone inside. Call your gas utility or 911 from outside, then call Sweetwater Plumbing for the repair.
Yes. Tankless units often need a larger gas line than a tank-style heater. See our water heaters page for the models we install, and we will check your gas supply before the install.
“Matt was amazing! I've worked with many plumbing companies, and I will definitely contact Sweetwater Plumbing for all my plumbing needs moving forward.”
Keila Feracho
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“Sweetwater saved the day! I had an active leak from a water pipe in the ceiling. They fixed the leak promptly and did a great cleanup job.”
Sandy Alex
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“Chris arrived on time and made an assessment. A most conscientious and capable young man — the quality of his work was outstanding.”
Bodin Schexnayder
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“Great job. Punctual, professional, took time to explain the work, what my options were, and let me choose.”
Krista Summitt
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“Joseph was a great technician. He investigated the problem and walked me through every step of the way. So kind and patient.”
Connie Knox
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“I needed repair work done on short notice after a house inspection. Excellent work and great folks to work with.”
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