Gas Line Repair & Leak Detection in Shreveport, LA

Licensed, Certified Technicians Protecting Shreveport Homes and Businesses Since 1997

Natural gas powers furnaces, water heaters, stoves, and dryers throughout Shreveport — but a compromised gas line puts your family and property at serious risk. Mark Johnson & Sons Plumbing delivers expert gas line repair, leak detection, and new installations for residential and commercial customers across the Shreveport area, with every job meeting Louisiana state plumbing and fuel gas codes. As part of our comprehensive plumbing services in Shreveport, we deliver professional results backed by decades of experience.

Why Gas Line Safety Matters

Gas leaks are among the most dangerous plumbing emergencies a homeowner can face. Even a small fracture in a supply line can release methane into your living space, creating explosion and carbon monoxide hazards that threaten everyone inside. Northern Louisiana’s shifting clay soils place added stress on underground gas lines, and seasonal temperature swings between humid summers and occasional hard freezes can accelerate joint failures and corrosion over time.

Shreveport homes built before the 1980s may still rely on older black iron piping that has spent decades underground in moisture-heavy soil. Corrosion, root intrusion, and ground settlement near the Red River basin all contribute to slow deterioration that often goes unnoticed until a detector alarm sounds or the distinctive sulfur odor appears. Prompt professional detection and repair is the only safe response.

Our Gas Line Services

Gas Leak Detection

We use electronic combustible-gas analyzers and pressure-drop testing to pinpoint leaks quickly — above ground, below grade, or behind walls. Our process isolates the affected section so repairs can begin immediately without unnecessary demolition.

Gas Line Repair

Whether the issue is a corroded fitting, a cracked flexible connector, or a damaged buried line, our journeymen plumbers carry the parts and equipment to complete most repairs in a single visit. Every repair is pressure-tested and inspected before we restore service.

New Gas Line Installation

Adding a gas range, outdoor grill, pool heater, or generator? We size and route new supply lines to meet manufacturer specifications and Louisiana Fuel Gas Code requirements, pulling any required permits through the City of Shreveport.

Appliance Hookups & Connections

Improper appliance connections are a leading cause of residential gas leaks. We handle dryer hookups, tankless water heater connections, fireplace inserts, and any other gas-fed appliance — ensuring tight fittings, proper flexible connectors, and a verified leak-free seal.

Gas Line Replacement & Upgrades

When aging iron pipe reaches the end of its service life, we replace full runs with modern corrugated stainless steel tubing (CSST) or coated steel, giving you decades of reliable, corrosion-resistant performance.

Call us at 318-319-0220 today or click below to schedule service.

When to Call

• You smell rotten eggs or sulfur anywhere near your home
• A gas detector or carbon monoxide alarm activates
• You hear hissing near a gas appliance, meter, or exposed pipe
• Dead vegetation appears in a line pattern across your yard
• Your gas bill spikes without a change in usage
• Appliances produce yellow or irregular flames instead of steady blue
• You are renovating and need to relocate or add gas lines
• A contractor struck a line during excavation or construction work

Why Choose Mark Johnson & Sons in Shreveport

• Licensed & insured — every technician holds current Louisiana journeyman credentials
• 24/7 emergency response — gas leaks cannot wait until morning
• Upfront flat-rate pricing — you approve the cost before any work begins
• Veteran-owned, family-operated — founded by Mark Johnson in 1997, now led by sons Michael and John
• Fully stocked trucks — most repairs completed same-day without return trips
• Uniformed, ID-carrying technicians — you always know who is at your door

Frequently Asked Questions

How do I know if I have a gas leak?

The most common sign is the smell of sulfur or rotten eggs, which is an odorant added to natural gas specifically so leaks can be detected. Hissing sounds, dead plants over buried lines, and unexplained spikes in your gas bill are also indicators.

What should I do if I smell gas inside my home?

Leave the house immediately without flipping switches, lighting matches, or using phones indoors. Once safely outside, call 911 and then contact a licensed plumber to locate and repair the leak before service is restored.

Does Mark Johnson & Sons handle gas line permits in Shreveport?

Yes. We pull all required permits through the City of Shreveport Department of Operational Services and coordinate any necessary inspections so you do not have to manage the process yourself.

Can I install a gas line myself in Louisiana?

Louisiana law requires gas line work to be performed by a licensed plumber or gas fitter. DIY gas work is illegal, uninsurable, and extremely dangerous. Always hire a licensed professional.

How long does a gas line repair typically take?

Most above-ground repairs are completed within one to two hours. Underground line repairs or full replacements may take a full day depending on the length of the run and required excavation.

Is CSST tubing safe for residential gas lines?

Yes. Modern corrugated stainless steel tubing is code-approved in Louisiana when properly bonded and grounded. It resists corrosion far better than traditional black iron and is faster to install with fewer joints.

How often should gas lines be inspected?

We recommend a professional inspection every two years, or immediately after any seismic activity, major construction near your property, or if your home is more than 30 years old and has never been evaluated.

Do you service commercial properties in Shreveport?

Absolutely. We handle gas line work for restaurants, laundromats, warehouses, and other commercial facilities throughout the Shreveport-Bossier City metro area.

What areas besides Shreveport do you serve?

We cover all of Caddo Parish and Bossier Parish, including Bossier City, Blanchard, Greenwood, Haughton, and surrounding communities in Northern Louisiana.

Will my homeowner’s insurance cover a gas line repair?

Coverage depends on your policy and the cause of the leak. Sudden, accidental damage is often covered, while gradual corrosion typically is not. We can provide detailed documentation to support your claim.

Related Shreveport Services

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• Bathroom Remodeling in Shreveport
• Toilet Repair in Shreveport
• Emergency Plumbing in Shreveport
• Boiler Repairs in Shreveport

View all plumbing services in Shreveport or explore our full Shreveport service area.

Contact Us Today

Do not take chances with gas line problems. Whether you need emergency leak repair, a new appliance hookup, or a full gas line replacement, Mark Johnson & Sons Plumbing is ready to help Shreveport homeowners stay safe. Call 318-319-0220 now or click below to schedule your appointment.