Gas Leak Detection in Southlake, Dallas, Frisco, Allen & Plano, TX: How to Get Your Gas Back On After Atmos Energy Locks Your Meter
Has Atmos Energy shut off your natural gas because of a gas leak? Learn what causes residential gas leaks, how a licensed Master Plumber locates and repairs the problem, what happens during a city gas pressure-test inspection, and how to get your natural gas service restored.
Serving Southlake, Dallas, Frisco, Allen, Plano, and surrounding North Texas communities.
Smell Natural Gas? Leave the Property Immediately.
If you smell natural gas, hear a hissing sound near a gas line, or suspect an active gas leak, leave the building and move to a safe location.
Do not operate electrical switches, use a phone inside the affected building, start a vehicle near the suspected leak, or create sparks.
Once you are safely outside and away from the affected area, call 911 and Atmos Energy’s 24-hour emergency line:
Atmos Energy Emergency: 866-322-8667
Do not reenter the affected property until emergency responders or the gas utility indicate that it is safe.
Understanding Gas Leaks in North Texas Homes
Natural gas supplies many homes throughout Southlake, Dallas, Frisco, Allen, and Plano. Gas piping delivers fuel to furnaces, water heaters, kitchen ranges, fireplaces, pool heaters, outdoor kitchens, and other natural gas appliances.
Over time, gas piping systems can develop leaks. Problems may originate in underground piping, threaded connections, valves, appliance connectors, or concealed sections of gas piping.
When Atmos Energy identifies an unsafe gas condition on customer-owned piping, the utility may shut off the natural gas supply and secure the gas meter with a lock.
This prevents unauthorized restoration of service while the defective gas piping remains unrepaired.
Once the meter has been locked, the homeowner must follow the applicable repair, inspection, and utility-restoration process before natural gas service can resume.
The General Gas Restoration Process
- Atmos Energy shuts off unsafe gas service.
- A licensed plumbing contractor investigates the gas system and locates the leak.
- The Responsible Master Plumber obtains the required city permit.
- The defective gas piping or connection is repaired or replaced.
- The contractor prepares the system for the required gas pressure test.
- The city inspector witnesses the pressure test and inspects the applicable gas system.
- The city records the passed inspection and issues the required gas release.
- Atmos Energy receives or verifies the required municipal clearance.
- The homeowner schedules reconnection with Atmos Energy.
- An authorized Atmos Energy technician removes the utility lock and restores natural gas service.
Exact permit, inspection, and restoration requirements depend on the municipality, the cause of the shutoff, and the scope of the gas piping repair.
What Causes Natural Gas Leaks in Southlake, Dallas, Frisco, Allen & Plano?
A gas leak can occur in either a relatively new home or an older property. The most common problems that a plumbing professional investigates include deteriorated piping, defective connections, physical damage, and improperly installed gas components.
1. Corrosion of Underground Gas Piping
Underground metallic gas piping may be exposed to moisture and corrosive soil conditions. Without suitable corrosion protection, deterioration can weaken the pipe wall and eventually create a leak.
This type of problem may occur in customer-owned gas piping supplying pool heaters, outdoor kitchens, detached structures, or other gas-powered equipment.
2. Leaking Threaded Fittings and Pipe Connections
Gas piping systems contain connections between pipe sections, shutoff valves, fittings, regulators, and appliances.
A defective or improperly installed connection may allow gas to escape. A leak can also develop when a fitting is damaged or subjected to excessive stress.
3. Gas Leaks at Furnaces and Water Heaters
A gas odor near a furnace or water heater may originate from the appliance connector, an accessible gas piping joint, a shutoff valve, or an internal appliance component.
A qualified professional must identify the actual source of leakage before determining the appropriate repair.
4. Damage to Underground Gas Lines
Excavation, landscaping, fence installation, pool construction, and other construction activities can damage buried gas piping.
A gas line may be struck, bent, punctured, or disturbed during excavation.
Before digging, contact Texas 811 and follow applicable utility-location requirements. Privately owned gas lines may require a separate private locate.
5. Building Movement and Physical Stress
Settlement, vibration, inadequate pipe support, or physical impacts can place stress on gas piping and its connections.
These conditions may contribute to damaged fittings or piping.
6. Improper Installation or Previous Repairs
Unapproved piping materials, incompatible fittings, improper installation, insufficient corrosion protection, and defective previous repairs may create unsafe gas conditions.
A properly licensed plumbing professional must determine whether the defect can be repaired or whether the affected section of piping requires replacement.
Gas Leak Case Studies: Southlake, Dallas, Frisco, Allen & Plano
The following representative case studies demonstrate how different gas piping problems can lead to a gas service interruption and what is generally required to restore service safely.
These are illustrative diagnostic scenarios, not documented findings from specific customer properties.
What Happens When Atmos Energy Shuts Off Your Gas and Locks the Meter?
Atmos Energy may shut off natural gas service when it identifies a hazardous condition that makes continued gas service unsafe.
If the problem involves customer-owned gas piping, the property owner is generally responsible for arranging the necessary repairs.
When Atmos Energy installs a lock on the meter, the gas system must remain disconnected until the required safety and restoration procedures have been completed.
The gas meter lock is not something that a homeowner or plumbing contractor should remove.
Only an authorized utility representative should remove the utility lock and restore gas service.
In cases requiring a municipal gas release, a completed plumbing repair by itself does not authorize utility reconnection.
The contractor must complete the applicable permitting, testing, and inspection process before Atmos Energy restores service.
Step-by-Step: How to Get Your Gas Back On After Atmos Energy Locks Your Meter
The following process applies to a typical leak-related gas shutoff involving customer-owned piping where a city inspection and gas release are required.
Contact a Licensed Plumbing Contractor
Once Atmos Energy has secured the meter and the property has been declared safe for the necessary work, the homeowner should contact a properly licensed plumbing contractor.
In Texas, a plumbing company performing regulated plumbing work operates under the responsibility of a Responsible Master Plumber, commonly called an RMP.
The RMP is responsible for the plumbing work performed under the RMP’s license and may obtain the applicable plumbing permits.
The work may be performed by the RMP or other appropriately licensed or registered personnel as authorized under Texas plumbing law.
Detect and Locate the Gas Leak
The plumbing professional evaluates the customer-owned gas piping system to determine where the gas leak is located.
The investigation may include an examination of accessible gas piping, appliance connections, shutoff valves, and underground gas lines.
Depending on the situation, approved diagnostic methods may include electronic combustible-gas detection, noncorrosive leak-detection solution, system isolation, and controlled pressure testing.
The objective is to locate the defective piping or component so that the necessary repair can be completed.
Obtain the Required City Gas or Plumbing Permit
For work requiring a municipal permit, the Responsible Master Plumber obtains the applicable gas or plumbing permit from the city having jurisdiction.
The permit identifies the property and authorized scope of work and allows the appropriate inspections to be scheduled.
The contractor must follow the requirements of Southlake, Dallas, Frisco, Allen, Plano, or the municipality in which the property is located.
Permit requirements may differ depending on whether the work involves a localized fitting repair, an underground gas line replacement, an appliance connection, or another type of gas system repair.
Repair or Replace the Defective Gas Piping
After the source of leakage has been identified, the defective gas piping, valve, or connection is repaired or replaced as appropriate.
The repair must comply with the applicable adopted fuel-gas code, local amendments, and manufacturer requirements.
When underground or concealed piping is involved, the contractor must obtain any required inspection before covering the work.
Prepare the Gas System for the Required Pressure Test
Once the necessary repairs are complete, the contractor prepares the gas piping for the required pressure test.
An approved test gauge or pressure-measuring device is connected to an appropriate test point on the customer-owned gas piping.
For certain gas-release inspections, the test connection may be located on the piping near the gas meter.
This is a separate test instrument, not simply the utility meter’s normal gas-usage display.
The plumbing professional properly isolates the gas piping from the utility supply and protects or disconnects appliances and components that cannot safely withstand the required test pressure.
The piping is then prepared for the test pressure and duration required by the applicable code and local jurisdiction.
Schedule the City Gas Inspection
The permit holder requests the required gas inspection through the municipality’s inspection scheduling process.
The contractor provides the required access, prepares the test equipment, and ensures that the gas piping is ready for inspection.
Some municipalities require additional inspections of piping, appliance connections, venting, or other applicable safety items.
The City Inspector Witnesses the Gas Pressure Test
The city plumbing or building inspector examines the applicable gas system and witnesses the required pressure test.
The inspector observes the pressure gauge to determine whether the system maintains the required pressure for the specified test duration.
For example, the City of Dallas requires its applicable gas-release pressure test to be performed at 3 psig for a minimum of 15 minutes while witnessed by the city plumbing inspector.
Other municipalities may have different gauge specifications, test durations, or additional requirements.
An unexplained pressure drop during the test may indicate additional leakage.
If the test fails, the contractor must investigate the problem, complete the necessary corrections, and obtain the required inspection approval.
The City Records the Passed Inspection and Issues the Gas Release
When the required gas inspection passes, the city records the inspection approval in its permitting or inspection system.
The municipality then completes the applicable utility gas-release process.
In cities that use electronic permitting systems, the permit record may show the inspection as approved or passed.
The official gas release confirms that the city has authorized the applicable gas service connection or reconnection.
Atmos Energy Receives or Verifies the City’s Gas Release
After the city completes the required approval and gas-release process, Atmos Energy must receive or verify the applicable clearance.
Depending on the municipality, this may involve an electronic notification, an authorized permitting system, or direct communication between city personnel and the utility.
In cities where utility personnel have access to the applicable municipal permitting records, they may be able to verify the passed inspection and release through that system.
However, the method of communicating a gas release is not identical in every city.
A passed inspection does not automatically guarantee an immediate utility reconnection appointment.
Contact Atmos Energy to Schedule Reconnection
Once the required municipal clearance has been completed, the homeowner should contact Atmos Energy to arrange restoration of natural gas service.
Atmos Energy Customer Service: 888-286-6700
Atmos Energy will confirm the applicable service-restoration requirements and schedule reconnection according to its procedures and technician availability.
Atmos Energy Unlocks the Meter and Restores Natural Gas Service
An authorized Atmos Energy technician arrives to complete the required restoration process.
The technician removes the utility lock when reconnection is authorized, restores gas service, and completes the required safety checks.
A responsible adult age 18 or older must be present for the applicable service-restoration appointment.
Atmos Energy may also relight accessible gas appliances that are in safe working condition, consistent with its service procedures.
Never remove a utility lock or attempt to turn your gas back on yourself.
What Does the Fuel-Gas Code Require for a Gas Pressure Test?
The International Fuel Gas Code, commonly called the IFGC, establishes requirements for gas piping materials, installation, inspection, testing, and safety.
The principal gas piping pressure-testing requirements appear in IFGC Section 406.
For residential systems governed by the International Residential Code, corresponding requirements may appear in Chapter 24.
The actual requirements for a property depend on the code edition adopted by the municipality, its local amendments, and the specific scope of work being performed.
Inspection and Testing
Section 406.1 establishes the general requirements for inspecting and pressure-testing gas piping installations before acceptance and initial operation.
Repairs and Additions
When gas piping repairs or additions are completed, the affected piping must be tested as required by code.
The model code provides an exception for certain minor repairs and additions when the work is inspected and approved leakage checks are completed.
A city or gas utility may still require a specific pressure test and gas release following a leak-related shutoff.
Approved Pressure-Test Medium
The model code allows approved pressure-testing media including air, nitrogen, carbon dioxide, and inert gas.
Oxygen must not be used to pressure-test fuel-gas piping.
Protecting Appliances During the Test
Gas appliances and equipment must be properly isolated or disconnected as applicable before the required gas piping pressure test.
Components must not be exposed to test pressures that exceed their safe operating or rated limits.
Test Pressure Measurement
The pressure test must be measured with an appropriate manometer or approved pressure-measuring device capable of indicating pressure loss.
The pressure source must be isolated before the test is evaluated.
Mechanical gauges must meet the applicable code requirements, including the permitted gauge measurement range.
A city may also require a particular type of diaphragm gauge or other approved testing instrument.
Required Gas Test Pressure
Under the unamended 2024 International Fuel Gas Code, the test pressure must be at least 1.5 times the proposed maximum working pressure.
The minimum test pressure is 3 psig.
Certain higher-pressure systems and systems subject to local amendments may require a higher test pressure.
Required Gas Test Duration
Under the unamended 2024 International Fuel Gas Code, a single-family dwelling or system with a piping volume of less than 10 cubic feet must be tested for at least 10 minutes.
Larger systems are subject to the applicable pipe-volume and test-duration requirements.
Local municipalities may adopt longer minimum test periods.
For example, the City of Dallas requires at least a 15-minute witnessed test under its published gas-test guidelines.
Detection of Gas Leaks and Defects
The piping system must withstand the required test pressure without showing evidence of leakage or other defects.
An unexplained reduction in the indicated test pressure is treated as evidence of leakage that must be investigated.
Gas Leak Detection, Correction and Retesting
Approved leak-detection methods include listed combustible-gas detectors, noncorrosive leak-detection fluids, and other approved methods.
When defective piping is identified, the affected portion must be repaired or replaced and retested as required.
Gas System Leakage Checks
The code establishes requirements for checking gas piping and equipment for leakage when gas is introduced or restored.
The applicable safety checks must be completed before normal operation resumes.
Additional Gas Piping Code Requirements
| Code section | Subject | Application |
|---|---|---|
| IFGC 402 | Gas piping design and sizing | Replacement piping must be appropriately sized for the gas appliances served. |
| IFGC 403 | Gas piping materials | Establishes requirements for permitted piping materials and fittings. |
| IFGC 404 | Gas piping installation | Addresses installation, piping protection, support, and related requirements. |
| IFGC 404.11 | Corrosion protection | Relevant to protecting metallic gas piping from corrosive conditions. |
| IFGC 404.12 | Underground piping burial depth | Relevant when repairing or replacing buried gas piping. |
| IFGC 409 | Gas shutoff valves | Addresses applicable gas shutoff-valve requirements. |
| IFGC 410 | Pressure regulators | Relevant to gas pressure-control equipment and regulator installations. |
| IFGC 411 | Appliance connections | Addresses approved methods of connecting gas appliances to the piping system. |
Code references are based on the 2024 model International Fuel Gas Code. The locally adopted code edition, amendments, and applicable inspection requirements govern each individual project.
Gas Inspection Requirements in Southlake, Dallas, Frisco, Allen & Plano
The five municipalities do not necessarily use identical gas testing and inspection procedures.
Before scheduling a gas-release inspection, the licensed contractor should verify the applicable permit type, test pressure, test duration, gauge requirements, and inspection procedure with the city.
Southlake Gas Inspection
Southlake’s published permanent gas meter release checklist specifies a 3 lb air test using a 6 lb diaphragm gauge.
Its published inspection guidance also addresses gas appliance installation, appliance venting, shutoff valves, sediment traps, and gas piping system completion.
Confirm the current requirements with Southlake Building Inspections before preparing the test.
Dallas Gas Inspection
Dallas requires its applicable gas-release pressure test to be performed at 3 psig for at least 15 minutes.
The test must be witnessed by the city plumbing inspector.
The city’s published guidelines also require access to structures and gas-supplied appliances for inspection.
Following approval, the Dallas plumbing inspector communicates the gas release to Atmos Energy.
City of Dallas Gas Test Guidelines
Frisco Gas Inspection
Frisco adopted the 2024 International Fuel Gas Code with local amendments, effective March 1, 2026.
Gas piping repairs and service restoration must satisfy the applicable code, permit, inspection, and utility-release requirements.
The contractor should confirm the specific gas-release inspection procedure with Frisco Building Inspections.
Allen Gas Inspection
Allen’s published municipal fuel-gas regulations establish local requirements for gas piping pressure testing.
The required test pressure, gauge, and duration must be verified against the code currently adopted by the city and its applicable amendments.
Before arranging an inspection, the contractor should confirm the appropriate permit and gas-release procedure with Allen Building Inspections.
City of Allen Official Website
Plano Gas Inspection
Plano gas piping repairs must comply with the municipality’s adopted fuel-gas code, local amendments, and applicable permit requirements.
For a leak-related gas shutoff requiring municipal clearance, the contractor completes the required repairs, pressure testing, and city inspection before the gas-release process is completed.
City of Plano Official Website
Plano Homeowners: Locate the Gas Leak Before Repair.
If you are experiencing a gas leak in Plano, Lone Star Leak Locators provides professional leak detection and diagnostic testing to help identify the affected piping.
Visit our Plano leak detection service page to learn more about our gas, slab, pool, and water leak detection services.
How Does Atmos Energy Know the City Gas Inspection Passed?
After the municipal gas inspection passes, the city records the inspection result in its applicable permit or inspection system.
When a utility gas release is required, the municipality communicates the necessary authorization to Atmos Energy.
Some cities use electronic permitting systems that allow authorized utility personnel to review relevant permit and inspection information.
Other municipalities may transmit the approval directly to Atmos Energy.
The City of Dallas, for example, publishes a procedure in which the plumbing inspector contacts Atmos Energy after approving the required gas inspection and provides the gas release.
Once Atmos Energy receives or verifies the necessary clearance, the homeowner can arrange the utility’s reconnection appointment.
A passed city inspection does not mean the homeowner can remove the meter lock or immediately resume gas service.
An authorized Atmos Energy technician must complete the applicable reconnection process.
Frequently Asked Questions About Atmos Energy Gas Shutoffs
Atmos Energy locked my gas meter. What should I do first?
If an active gas leak is suspected, stay away from the affected area and follow the utility’s emergency safety instructions.
Once the property is safe for work, contact a properly licensed plumbing contractor to investigate the leak and determine the necessary repair.
Can my plumber unlock the Atmos gas meter?
No. A plumbing contractor should not remove an Atmos Energy utility lock.
The required repair, municipal approval, and utility-restoration procedures must be completed before an authorized Atmos Energy technician restores service.
Do I need a gas permit after Atmos shuts off my service?
A city permit may be required depending on the reason for the shutoff and the repair needed.
When a municipal gas release is required, the contractor must complete the applicable permit and inspection process before service is restored.
Does the city inspector check the pressure gauge near the gas meter?
For a gas pressure-test inspection, the inspector examines the approved test setup and witnesses the required pressure test.
The test gauge may be connected to an appropriate test point near the meter, depending on the system and city requirements.
This is a separate test instrument, not simply the utility’s normal gas-usage meter.
What happens if the gas pressure drops during the city inspection?
An unexplained pressure drop may indicate a leak that must be investigated.
The contractor must identify the defect, complete the necessary repair, and obtain the required inspection approval.
How long does Atmos Energy take to restore gas service?
Restoration depends on completion of the necessary repairs, applicable city requirements, utility clearance, appointment availability, and final safety checks.
Same-day restoration is not guaranteed.
Once the required city clearance is completed, call Atmos Energy at 888-286-6700 to arrange reconnection.
Who pays for a gas leak on the customer side of the meter?
Property owners are generally responsible for arranging repairs to customer-owned gas piping.
Atmos Energy is responsible for its own utility-owned distribution equipment.
If ownership of the affected piping is unclear, confirm the point of responsibility with the utility.
Can Lone Star Leak Locators locate a gas leak in Plano?
Lone Star Leak Locators provides professional gas leak detection and diagnostic testing in Plano and surrounding North Texas communities.
Learn more about professional gas leak detection in Plano, Texas .
Getting Your Natural Gas Service Restored Safely in North Texas
A natural gas leak can interrupt heating, hot water, cooking, and other essential services in your home or business.
When Atmos Energy shuts off the gas and locks the meter, the priority is identifying and correcting the unsafe condition.
For repairs requiring municipal clearance, the restoration process involves professional leak detection, the applicable city permit, proper repair, pressure testing, municipal inspection, and the required gas release.
After the city completes its applicable approval process, Atmos Energy can arrange the final reconnection and required safety checks.
Working with a qualified licensed plumbing professional who understands local gas piping requirements can help coordinate the necessary steps toward safe service restoration.
Need Professional Gas Leak Detection in Southlake, Dallas, Frisco, Allen or Plano?
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Texas Responsible Master Plumber
License #45825
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For an active gas emergency, leave the affected area and call 911 and Atmos Energy at 866-322-8667 from a safe location.
Official Gas Code and Utility Resources
The following resources provide additional information about natural gas safety, pressure testing, municipal inspection requirements, and gas service restoration.
- International Code Council — 2024 International Fuel Gas Code, Chapter 4
- Atmos Energy — Gas Service Restoration After Repairs
- Atmos Energy — Natural Gas Leak Information
- City of Dallas — Gas Test and Gas Release Guidelines
- City of Southlake — Building Codes and Amendments
- City of Frisco — Adopted Codes
- City of Allen — Official Municipal Website
- City of Plano — Official Municipal Website
- Texas State Board of Plumbing Examiners
Updated September 2026. This article is provided for general educational purposes. Actual permitting, testing, inspection, and service-restoration requirements must be confirmed for the individual property and applicable municipality.