Gas Line Service in Dallas, TX
Gas leak detection, gas line repair, gas line replacement, and new gas line installation across Dallas and DFW. Licensed, insured, and permitted work since 1988.
Gas line work is not a job for a general handyman or an unlicensed contractor. In Texas, gas line installation, repair, and replacement must be performed by a licensed plumbing contractor, and most DFW municipalities require a permit and a pressure test before the line goes live.
Double M Plumbing handles every phase of residential and light-commercial gas line service across the Dallas-Fort Worth metroplex, from leak detection and emergency shutoff to full replacement of aging systems and new runs for appliance additions. The work is permitted, pressure-tested, and inspected on every job that requires it.
When a gas line needs attention, and how to tell
Gas lines are designed to be maintenance-free for decades, but they are not maintenance-free forever. Homes built before the 1980s are at the highest risk. The original black iron pipe used in most DFW residential construction of that era corrodes over time, and the threaded joints are the weakest points.
Rotten egg smell indoors or near the meter
Natural gas is odorless on its own, but the utility company adds mercaptan, a sulfur-based odorant that produces the distinctive rotten egg smell. If you detect that odor inside the house, near the meter, or along the yard line, treat it as an emergency. Leave the house, do not operate light switches or electronics, and call the gas utility from outside to shut off service at the meter.
Pilot light that goes out repeatedly
A pilot light that goes out repeatedly on a water heater, furnace, or fireplace can indicate low or inconsistent gas pressure reaching the appliance, a sign that something upstream in the gas line may be failing.
Hissing sound near a gas connection
A hissing sound near a gas connection, fitting, or exposed section of pipe is one of the clearest signs of an active leak. This requires immediate attention. Do not attempt to locate or tighten the fitting yourself.
Dead vegetation over a buried yard line
Dead vegetation in a strip or patch over a buried yard line is caused by gas displacing oxygen in the soil. This is one of the few visible signs of a leak in a buried line and should be investigated promptly.
Higher-than-expected gas bills
Higher-than-expected gas bills with no change in usage suggest a slow leak somewhere in the system. Even a small leak at a fitting or corroded joint can add up to a meaningful pressure drop over time.
Visible corrosion on exposed gas pipe
Visible corrosion or green patina on exposed gas pipe fittings, particularly in crawlspaces, attics, and near the meter, indicates the pipe has begun to deteriorate. Corroded fittings are the most common failure point in older black iron systems.
Gas line services we provide across Dallas and DFW
All gas line work is performed by a licensed Texas plumbing contractor, permitted where required, and pressure-tested before the line is returned to service.
Gas leak detection and emergency repair
We locate leaks using electronic gas detection equipment that pinpoints the source at fittings, joints, connections, and along buried yard lines.
- Electronic gas detector sweep of all fittings
- Buried yard line testing at risers
- Affected section isolated and replaced
- Pressure-tested before returning to service
- Permit and inspection included when required
Gas line repair
Targeted repair of a specific section, joint, or fitting that has failed due to corrosion, physical damage, or joint deterioration.
- Isolated to the specific failure point
- Appropriate when rest of system is sound
- Pressure-tested in place before going live
- Written estimate before any paid work begins
Gas line replacement
Full or partial replacement of gas piping that has reached the end of its service life, including original black iron systems in older Dallas homes.
- New pipe sized for current appliance load
- Right scope when corrosion is widespread
- Covers multiple failed or failing joints
- Addresses undersized pipe for added appliances
New gas line installation
Running a new gas line to serve an added appliance. Most common for tankless water heaters, outdoor grills and fire pits, generators, pool heaters, and gas dryers.
- Sized for the appliance's BTU demand
- Routed to code and permitted
- Pressure-tested before final connection
- Utility coordination if meter upgrade needed
Gas line pressure testing
A pressure test confirms the entire gas system holds without losing pressure over a set period. Required by code after any repair or new installation.
- Available as a standalone diagnostic service
- Required after every repair and installation
- Useful for verifying integrity of older systems
- Results documented for permit inspection
Gas line sizing and consultation
When adding a high-BTU appliance, we calculate the total BTU demand, assess current pipe diameter and run lengths, and determine if an upgrade is needed.
- Total BTU demand calculation
- Existing pipe diameter and run length assessment
- Prevents pressure competition between appliances
- Written scope before any work begins
How a gas line service visit works
Every gas line job follows a consistent process from arrival to final appliance check. No gas is turned back on until the system is confirmed leak-free.
Safety assessment on arrival
The plumber checks for active gas odor, verifies the meter status, and confirms that any immediate hazard has been controlled before beginning diagnostic work.
Electronic leak detection
We sweep every accessible fitting, connection, and exposed pipe section with an electronic gas detector. Buried yard lines are tested at the riser and at accessible points along the run.
Diagnosis and scope
Once the problem is identified, the plumber explains the finding and presents the options. For isolated failures, targeted repair is usually sufficient. For widespread corrosion, partial or full replacement is the better long-term path. A written estimate is provided before any paid work begins.
Permitted work and pressure test
Gas line repair, replacement, and new installation require a permit in most DFW municipalities. We pull the permit, perform the work, and schedule the city inspection. Every job is pressure-tested before the gas is turned back on.
Appliance reconnection and verification
After the line work is complete and tested, we reconnect all affected appliances, verify proper ignition, and check for gas flow at each connection point.
Why Dallas homeowners trust Double M Plumbing for gas line work
Nearly four decades of gas line service across DFW. Licensed, bonded, insured, and permitted on every job.
Licensed by the TSBPE
Every plumber on the team holds a Texas State Board of Plumbing Examiners license. Gas line work is not optional to license in Texas.
A+ with the BBB
Double M Plumbing holds an A+ rating with the Better Business Bureau and a 5.0 rating on Angi after nearly four decades of DFW service.
Serving DFW since 1988
35+ years reading Dallas housing stock means faster diagnosis and more accurate scope recommendations on older systems.
Locally owned and dispatched
We dispatch from our East Dallas shop at 6477 Lontos Dr. The plumber who arrives works for us, not a franchise or dispatch service.
Permits handled on every job
We pull the permit, schedule the inspection, and handle the final sign-off. You do not manage the permitting process yourself.
Written estimate before paid work
The diagnosis is honest and the estimate is in writing before any paid work begins. No surprise invoices at the end of the job.
Gas line work carries a different level of consequence than a drain clog or a dripping faucet. A misdiagnosed leak, an improperly joined fitting, or an undersized line can create a safety hazard that puts a household at risk. That is why Texas requires gas line work to be performed by a licensed plumbing contractor, and it is why homeowners should treat the licensing requirement as a hard line rather than a suggestion.
Double M Plumbing has been handling gas line service across Dallas and DFW since 1988. Over nearly four decades, we have replaced aging black iron systems in post-war Dallas homes, run new high-capacity lines for tankless water heaters and generators, located slow leaks in buried yard lines using electronic detection, and performed emergency repairs after freeze events cracked fittings and joints across the metroplex.
37+ Years of Trusted Gas Line Service in DFW
Double M Plumbing is a local, family-owned company serving Dallas-Fort Worth homeowners for over 37 years.
Our licensed and insured plumbers have completed 15,000+ jobs, with same-day service and written estimates before any paid work begins.
Common questions about gas line service in Dallas
How do I know if my gas line needs to be replaced or just repaired?
If the failure is at a single joint or fitting and the rest of the system is in sound condition with no visible corrosion, a targeted repair is usually appropriate. If the pipe shows widespread corrosion, if multiple joints are deteriorated, or if the system has already failed in more than one location, replacement is the better investment. We make the recommendation based on what the inspection reveals, and the estimate covers both options when either could be appropriate.
Do I need a permit for gas line work in Dallas?
Yes. The City of Dallas requires a permit for gas line repair, replacement, and new installation. Most surrounding DFW cities have the same requirement. We pull the permit, schedule the inspection, and handle the final sign-off as part of the job scope. You do not need to manage the permitting process yourself.
Can you run a gas line for a tankless water heater?
Yes, and this is one of the most common gas line additions we handle in DFW. Tankless water heaters often require a larger-diameter gas line than the existing run to the old tank unit can provide. We size the new line based on the unit's BTU demand, the length of the run, and the total load on the gas system, then install, permit, and pressure-test the new line.
What should I do if I smell gas in my house?
Leave the house immediately. Do not flip light switches, operate electronics, or create any spark. Once outside, call your gas utility's emergency line to report the leak and request a meter shutoff. After the gas is off and the utility has cleared the immediate hazard, call a licensed plumber to locate and repair the leak.
How long does a gas line last before it needs replacement?
Black iron gas pipe has a typical service life of 50 to 70 years depending on soil conditions, moisture exposure, and whether the pipe is buried or above grade. Homes built before the 1980s with original gas lines are in the window where inspection and replacement conversations become relevant.
Can you add a gas line for an outdoor grill, fire pit, or pool heater?
Yes. New gas line runs for outdoor living features are a routine part of our work in DFW. We size the line for the appliance, route it to code, connect it, and permit and test the installation. Burial depth and protection from physical damage are code requirements we handle as part of the scope.
Cities and neighborhoods we serve
Dispatched from our Dallas office at 6477 Lontos Dr, Dallas, TX 75214. Call 214-714-6600 to confirm coverage by ZIP code.
Other plumbing services Double M handles across DFW
Gas line work is often part of a larger project. A tankless water heater installation requires a new gas line. A full-house repipe may reveal gas line corrosion hidden behind finished walls.
Plumbing repair
- Water heater repair. Diagnosis and repair of gas and electric tank water heaters.
- Tankless water heater repair. Repair of on-demand units across major brands.
- Water leak repair. Repair of pressurized supply line leaks throughout the home.
- Slab leak repair. Pinpoint detection and repair of pressurized leaks under concrete slab foundations.
- Repiping. Full or partial repipe of older failing systems with modern materials.
Installation
- Water heater installation. Replacement and new installation of tank water heaters, gas or electric.
- Tankless water heater installation. New tankless installation including gas line sizing and venting.
- Fixture installation. Sinks, faucets, toilets, tubs, showers, and garbage disposals.
- Backflow installation and repair. Installation, testing, and repair of backflow prevention assemblies.
Sewer and drains
- Drain cleaning and maintenance. Routine and scheduled drain clearing for kitchen, bath, laundry, and main lines.
- Camera inspection. Sewer and drain camera inspection before recommending repair scope.
- Hydro jetting. High-pressure water jetting for grease, scale, and heavy root buildup.
- Trenchless sewer repair. Pipe bursting and lining without full-yard excavation.
Ready to schedule gas line service in Dallas?
Licensed, permitted, and pressure-tested on every job. Call 214-714-6600 or use the form below to schedule service.