DSM Rooter & Plumbing logoDSM Rooter & Plumbing

Gas Line Repair & Replacement You Can Trust

Safe, code-compliant gas line services for Torrance, Marina del Rey, Venice, and San Pedro. Licensed plumbers who handle repairs, installations, and emergency shutoffs with confidence and transparency.

Gas Line Repair & Diagnosis

Leaking connections, corroded fittings, or damaged lines pose serious safety risks. We locate the problem, explain the repair clearly, and fix it right. From minor leaks to complete line replacement, we handle residential gas work with the care it demands. Service from $100 for diagnostics, $235 for supply line work, or full replacement starting at $4,800 when inspection reveals structural damage.

Gas Line Installation & Code Compliance

New appliances, remodels, or outdoor grills often need new gas lines. We install supply lines, sediment traps, and regulators to code, test for leaks under pressure, and provide documentation for your records. Our crews understand Los Angeles County codes and work with inspectors to get your job passed on the first visit.

Emergency Shutoff & Safety

If you smell gas or suspect a leak, we respond quickly to locate the problem and shut off your supply safely. We'll advise whether repair is urgent or can wait, and we never push unnecessary work. Honesty about the severity, and the cost, is how we've earned a 5.0 rating across 95 Google reviews.

Why Choose DSM Rooter for Gas Work

Gas line work requires precision, knowledge, and respect for safety codes. David Diaz and his crew bring decades of South Bay plumbing experience, meticulous attention to detail, and a commitment to fair, transparent pricing. We explain every step, answer your questions, and stand behind our work. No surprises, no hidden charges, just honest plumbing you can rely on.

01

Inspection & Diagnosis

We arrive on time, locate your gas line or suspected issue, and visually inspect for corrosion, cracks, loose fittings, or leaks. We use pressure testing and specialized detection equipment to confirm the problem. A clear diagnosis takes about 30 minutes and costs $175 for a service call; the inspection guides the repair plan.

02

Explain Your Options

Not every gas line issue requires replacement. Minor leaks at fittings can be tightened or resealed. Corroded sections can be isolated and repaired. We'll explain which approach makes sense for your situation, what it costs, and how long it takes. You decide; we execute.

03

Repair or Replace

For repairs, we tighten connections, replace bad fittings, or patch compromised lines using code-compliant materials. For full replacement, we run new supply line (copper, steel, or flexible 3/8 inch soft copper), install sediment traps and regulators as required, and pressure-test the entire system before we turn the gas back on.

04

Pressure Test & Verification

Once the work is complete, we perform a comprehensive gas pressure test to confirm no leaks exist and pressure is stable. We show you the results and provide documentation. Your appliances are safe, your line is code-compliant, and you have peace of mind.

05

Final Walkthrough & Next Steps

We walk you through the work we completed, answer any remaining questions, and leave your home clean and tidy. For larger jobs, we discuss any future maintenance or upgrades (like secondary lines for new appliances). You have our number if anything comes up.

Service Call & Diagnosis

$175
  • Full inspection of gas line or appliance
  • Pressure testing and leak detection
  • Written diagnosis and repair recommendation
  • No obligation to proceed

Minor Repairs

$235–$325
  • Tighten loose fittings or connections
  • Replace faulty gas valve or sediment trap
  • Retest and verify seal
  • Typical job: 1–2 hours

Gas Line Replacement

$4,800+
  • Full gas supply line replacement
  • New copper, steel, or soft copper installation
  • Pressure test, code verification, documentation
  • Price quoted after inspection; depends on distance and materials

Detect a gas leak or need a new line installed?

Call us now or fill out our request form. We'll schedule an inspection and explain your options, no pressure, no guessing.