⚠️ Gas Emergency? Leave the building first.
If you smell gas (rotten eggs or sulfur), leave immediately. Do not operate light switches, electronics, or your phone inside. Call 911 and your gas utility from outside. Do not re-enter until a licensed technician clears the property. Then call us for emergency gas line repair.
📞 Call (888) 766-7573 from outside
Signs You May Have a Gas Line Problem
Natural gas is odorized with mercaptan — a compound that smells like rotten eggs or sulfur — specifically so leaks can be detected by smell. But gas line problems can also present without a strong odor, especially with slow leaks or outdoor lines:
- Smell of rotten eggs or sulfur — inside the home, near appliances, or near gas meter; the primary warning sign of a leak
- Hissing or whistling sound near a gas line, meter, or appliance — indicates pressurized gas escaping from a fitting or pipe
- Dead or discolored vegetation over buried gas lines — gas displaces oxygen in soil and kills grass or plants above a leak point
- Dirt or debris blowing from the ground near the gas line path — pressurized gas can force its way through soil
- Unexplained higher gas bills — a slow leak you can't smell may still register on your monthly usage
- Appliance pilot lights that won't stay lit or burners that flame irregularly — may indicate low pressure from a line leak upstream
Gas Line Problems We Repair
Our network handles the full range of residential gas line repair work:
- Corroded or deteriorating pipe sections — older black iron or galvanized steel lines develop internal and external corrosion over decades; affected sections are replaced with code-compliant materials
- Leaking fittings and joints — threaded fittings can loosen or develop micro-cracks; properly tightening, re-threading, or replacing the fitting resolves most small leaks
- Damaged flexible connectors — the corrugated stainless steel flex connectors behind ranges, dryers, and water heaters wear and crack; replacement is quick and inexpensive
- Failed shut-off valves — appliance shut-off valves can seize open or fail to hold pressure; replacement restores safe manual control over each appliance's gas supply
- Underground line leaks — exterior gas lines to detached garages, outdoor grills, generators, and pool heaters can be damaged by frost heave, ground shifting, or excavation
- Pressure test failures before inspection — new construction or post-repair pressure tests that don't hold require leak detection and remediation before gas is restored
New Gas Line Installation
Adding a gas appliance or extending service to a new location requires running new gas line — work that must be permitted and inspected in most jurisdictions. Common new gas line projects include:
- Converting an electric range or dryer to gas
- Adding a gas range or cooktop to a kitchen currently served only by electric
- Running outdoor gas line for a permanent grill, fire pit, or outdoor kitchen
- Gas supply line for a whole-house generator
- Tankless water heater installation requiring dedicated gas supply
- Adding a gas fireplace or fireplace insert
Our plumbers pull the required permits, perform the work, and coordinate inspection — so the job is done right the first time and your homeowner's insurance isn't voided by unpermitted work.
Gas Line Repair Cost Guide
Gas line repair costs depend on the type of repair, length of line affected, and whether after-hours emergency rates apply:
- Service call + diagnostic (leak detection): $75–$150
- Fitting or flex connector replacement: $150–$300 including labor
- Short section replacement (2–10 ft): $300–$600
- Longer section or new branch run (20–50 ft): $400–$800+
- Emergency after-hours rate: 1.5x–2x standard labor rate
- Permit fees (where required): $50–$200 depending on jurisdiction
Most residential repairs fall in the $150–$800 range. Any reputable gas line plumber will provide a written estimate before work begins and confirm upfront whether emergency rates apply to your call.
Our Gas Line Repair Process
- Safety assessment first. The plumber confirms the area is safe to work — checking for active gas odor, confirming the gas is shut off at the appropriate valve, and verifying no ignition sources are present.
- Shut off gas supply. Gas is shut off at the appliance valve, zone valve, or main meter shutoff depending on the scope of the repair.
- Locate and isolate the problem. Using soap solution, electronic gas detectors, or pressure testing, the plumber pinpoints the exact leak location and confirms the extent of the affected section.
- Repair or replace the damaged section. The defective fitting, connector, or pipe section is repaired or replaced with code-compliant materials — typically CSST (corrugated stainless steel tubing) or black iron pipe.
- Pressure test the system. Before gas is restored, the repaired line is pressure-tested to confirm no residual leaks. This step is required by code and non-negotiable.
- Restore gas and verify appliance operation. Gas is turned back on, each downstream appliance is re-lit and checked for normal flame pattern and pressure, and the plumber confirms no odor is present before leaving.
Typical cost range: $150–$800 for most residential repairs. Emergency rates and permit fees may add to the total. Call for an upfront quote.
Frequently Asked Questions
What should I do if I smell gas in my home?
Leave the building immediately. Don't flip light switches, operate electronic devices, or use your phone inside — any spark can ignite accumulated gas. Once outside, call 911 and your gas utility's emergency line. Don't re-enter until the utility or a licensed technician has cleared the property. Only after evacuation is confirmed safe should you call a plumber to locate and repair the source.
How much does gas line repair cost?
Most residential gas line repairs run $150–$800. Simple flex connector replacements or fitting repairs are $150–$300. Section replacements and longer runs cost $300–$800+. Emergency after-hours calls add a 1.5x–2x premium on labor. Permits may be required in your jurisdiction ($50–$200 additional). Always get a written estimate before work begins — reputable plumbers provide one upfront.
Can a plumber work on gas lines?
Yes — licensed plumbers are authorized to work on gas lines in most US states, and many hold specific gas line certifications in addition to their plumbing license. Our network dispatches only plumbers who are properly credentialed for gas work in your state. Always confirm gas line certification specifically, separate from the general plumbing license, before authorizing work.
How do I know if I have a gas line leak?
The most obvious sign is a rotten-egg or sulfur smell — natural gas is odorized specifically for this purpose. Other signs: a hissing sound near a gas line or appliance, dead or discolored plants over buried lines, dirt blowing up from the ground near the line path, unexplained increases in your gas bill, or pilot lights that won't stay lit. If you suspect a leak at all, treat it as a confirmed leak and evacuate first.
Find Gas Line Repair in Your State
We connect homeowners with licensed, gas-certified plumbers for repair and installation across all 50 states. Select your state: