Quick Answer: Leave the building immediately. Do not use switches, phones, flames, vehicles, or try to find the leak. From a safe location, call 911 and CenterPoint Energy. Wait for the utility or fire department to make the property safe before calling a licensed plumber for repairs.
If you smell gas in your Houston home right now, stop reading and leave. Take everyone with you, including children, older adults, and pets. Do not stop to collect belongings.
Once you are safely away from the property, call 911 first and then CenterPoint Energy’s natural gas emergency line at 713-659-2111 or 888-876-5786. CenterPoint and the City of Houston both instruct residents to report suspected gas leaks from a safe location.
A plumber is important for repairing damaged gas piping, appliance connections, or indoor gas lines. But a plumber is not the first call during an active gas leak. Emergency responders and the gas utility must address the immediate hazard first.
Why This Matters
Natural gas is highly useful, but a leak can create a fire, explosion, or breathing hazard when gas accumulates in an enclosed space. Houston homes can have additional complications because of age, remodeling, slab foundations, saturated soil, and storm-related damage.
A gas smell in a 1950s home in Meyerland may come from an aging appliance connector or interior piping. In an older Heights or Montrose home, decades of repairs and renovations may have left gas appliances with outdated connections. In newer construction, excavation or landscaping work can damage an underground service line.
You do not need to identify the cause before leaving. You only need to recognize the warning signs and act safely.
Natural gas is naturally odorless. Utilities add an odorant that smells similar to rotten eggs or sulfur so residents can detect a leak. Other warning signs include:
- A hissing, whistling, or roaring sound near a gas appliance, meter, or pipe
- Blowing dirt or bubbling water outside
- Dead or discolored vegetation near an underground gas line
- A white cloud or mist near a pipe
- Unexplained dizziness, nausea, headache, or difficulty breathing
Carbon monoxide is different. It has no smell. If a carbon monoxide alarm sounds or someone has symptoms, leave immediately and call 911 from outside.
The 3 Things to Do Before You Call a Plumber
1. Leave immediately without creating a spark
Get everyone out of the home or affected area on foot. Do not use a cell phone inside the building. Do not turn lights on or off. Do not operate a garage door opener, thermostat, fan, or appliance.
Avoid anything that could ignite gas, including:
- Matches, lighters, candles, and cigarettes
- Electrical switches and outlets
- Doorbells
- Motors and power tools
- Vehicles parked near the suspected leak
- Flashlights or other battery-powered devices inside the affected area
Do not start your vehicle in or next to the suspected leak area. Walk to a safe location away from the building and the odor before making any calls.
Do not stop to open windows or doors to ventilate the home. Do not waste time looking for the source. Evacuation is more important than ventilation or investigation.
Never re-enter the property because the odor seems to have faded. Natural gas can move through walls, floors, crawl spaces, and other enclosed areas. A change in smell does not prove the danger is gone.
2. Keep people away and avoid the gas equipment
Once outside, move away from the property. Keep neighbors, visitors, children, and pets away from the building and suspected leak area.
Do not try to shut off the gas meter unless emergency personnel specifically direct you and you have been trained to do so. Do not operate valves, disconnect appliance fittings, or attempt a temporary repair.
This is where homeowners often make a dangerous mistake. A person smells gas near a water heater, sees an exposed fitting, and reaches for a wrench. That action can release more gas or create a spark. Even if you believe you found the problem, leave the equipment alone.
If you see flames or hear a loud gas release, increase your distance and call 911. Do not attempt to extinguish a gas-fed fire yourself.
3. Call 911 and CenterPoint from a safe location
Call 911 first from outside and away from the gas odor. Tell the dispatcher that you suspect a natural gas leak and provide the property address.
Then contact CenterPoint Energy:
- 713-659-2111
- 888-876-5786
The City of Houston’s official natural gas emergency guidance also instructs residents to call 911 and the utility from a safe location. CenterPoint’s natural gas leak safety page provides current response instructions.
Do not report an active leak by email or through an online form. Do not assume a neighbor, landlord, contractor, or previous homeowner already called. Report it yourself.
When you speak with the dispatcher or utility representative, provide:
- The complete property address
- Where you noticed the smell or sound
- Whether anyone feels ill
- Whether you see flames, smoke, or damaged piping
- Whether construction, digging, flooding, or storm damage recently occurred
After reporting the emergency, stay away until authorized personnel give you an all-clear.
Who Should You Call: 911, the Utility, or a Plumber?
The right professional depends on the stage of the problem. Calling the wrong person first can delay a safety response.
| Situation | First call | What happens next |
|---|---|---|
| You smell gas inside or outside | 911, then CenterPoint Energy | Evacuate, keep away, and wait for emergency and utility personnel |
| A gas line was struck while digging | 911, then CenterPoint Energy | Stop work, clear the area, and do not approach the damaged line |
| The utility has shut off gas and declared the property safe | Licensed plumber | Inspect and repair customer-owned piping, fittings, or appliances |
| A gas appliance has an issue but there is no gas odor | Licensed plumber or appliance professional | Schedule diagnosis, repair, or replacement |
| A carbon monoxide alarm sounds | 911 | Leave immediately; do not assume the problem is a natural gas leak |
The utility generally handles its infrastructure up to and including the meter. The property owner is typically responsible for indoor gas piping, appliance connections, and equipment beyond the meter. The exact responsibility can vary by property and service arrangement, so let the utility identify the immediate hazard first.
When to Call an Emergency Plumber for Gas Leak Repairs
Call an emergency plumber for gas leak repairs after 911 and CenterPoint have responded and made the situation safe.
A licensed plumber may be needed when:
- A gas appliance connector is damaged
- Interior gas piping is leaking
- A fitting or valve needs replacement
- A remodel exposed outdated or improperly installed gas piping
- A gas line was damaged inside the property
- The utility shut off service because of a customer-side issue
- A gas appliance needs to be disconnected, repaired, or replaced
Tell the plumber exactly what happened. Explain where you smelled gas, whether the utility responded, what equipment was shut off, and whether the gas service remains disconnected.
Santhoff Plumbing can evaluate customer-owned gas piping and related plumbing issues once the immediate emergency has been controlled. If the problem is difficult to locate, ask about leak detection and explain that the gas utility has already cleared the property for repair work.
Common Mistakes and Risks
Mistake 1: Calling a plumber before the gas utility
A plumber can repair many gas-line problems, but the utility and fire department handle active leak hazards and may need to shut off or secure the gas supply. Calling a contractor first can waste time and put people in the wrong environment.
Rule of thumb: Active odor or hissing means 911 and the utility first. Repair work comes after the all-clear.
Mistake 2: Turning on a light to investigate
Even a small electrical switch can create an ignition source. You do not need to see the leak to make the correct decision. Leave.
Mistake 3: Assuming a weak smell is harmless
A faint odor still deserves immediate attention. The smell may be diluted, intermittent, masked by another odor, or coming from a location where gas is accumulating.
Rule of thumb: If you smell gas, treat it as a real leak until qualified responders say otherwise.
Mistake 4: Shutting the meter valve without training
Homeowners sometimes believe closing the meter valve is always the safest step. It can be dangerous to approach the meter during a leak, and restoring service improperly can create another hazard.
Leave the meter and piping alone unless emergency personnel provide clear instructions.
Mistake 5: Re-entering to rescue belongings
Phones, medications, wallets, and pets can create emotional pressure to go back inside. Do not re-enter until the fire department or utility gives an all-clear. Tell responders who or what remains inside.
Mistake 6: Hiring the cheapest available gas contractor
Gas piping is not the place for an unlicensed handyman or a contractor who cannot explain the repair. Ask for licensing, written scope, required testing, and transparent pricing.
A high price is not automatically a sign of quality. A low price is not a bargain if it skips testing, permits, approved materials, or code requirements.
Houston-Specific Causes to Watch For
Houston’s climate and housing stock create several conditions worth keeping in mind:
- Severe storms and flooding: Saturated soil, fallen trees, and debris can damage exterior piping or shift buried lines.
- Expansive clay and settling: Soil movement varies across the Houston region. Settling can place stress on buried service lines or connections.
- Older homes: Properties in the Heights, East End, Third Ward, and Montrose may have older piping, appliance connectors, or previous unpermitted modifications.
- Remodeling and additions: Moving a kitchen, adding an outdoor grill, or converting a garage can leave gas piping improperly sized or connected.
- Landscaping and excavation: Fence posts, irrigation work, pool projects, and tree planting can damage underground lines. Call 811 before digging.
These factors do not mean every older Houston home needs repiping. That is an important distinction. A contractor should inspect the system and explain the actual defect instead of using the age of the home as a reason to sell unnecessary work.
FAQ: Gas Leak Emergencies in Houston
What should I do if I smell gas but am not sure it is natural gas?
Treat the odor as a possible gas leak. Leave immediately, avoid switches and electronics, and call 911 and CenterPoint Energy from a safe location. Do not wait to confirm the source.
Can I use my phone to call 911 during a gas leak?
Do not use your phone inside the affected area. Leave first, move away from the building and odor, then call 911 and CenterPoint from a safe location.
Should I open windows if I smell gas?
Do not stop to open windows or ventilate the property. Your priority is to evacuate without creating a spark. Let emergency personnel and the utility handle the situation.
When should I call a 24/7 emergency plumber?
Call a 24/7 emergency plumber after 911 and CenterPoint have responded and declared the property safe. A plumber can then repair customer-owned gas piping, appliance connections, or related plumbing equipment.
Can a plumber repair the gas line to my house?
A licensed plumber can often repair customer-owned gas piping and equipment inside the property or beyond the utility’s responsibility. The utility must address its own infrastructure and control an active leak first.
What if the gas smell disappears?
Do not assume the problem is fixed. The odor may be intermittent or temporarily diluted. Stay out and report the suspected leak. Re-enter only after authorized emergency or utility personnel say it is safe.
Why Choose Santhoff Plumbing?
Santhoff Plumbing has served Greater Houston since 1974. Our veteran-owned, family-operated company handles residential plumbing repairs, gas line plumbing, leak detection, appliance connections, and emergency service.
When the utility has made your property safe, our licensed Master Plumbers can help identify and repair customer-side plumbing problems. We provide upfront pricing, same-day availability when possible, 24/7/365 emergency response, and a satisfaction guarantee.
You do not need to guess whether a full repipe or expensive replacement is necessary. We explain what failed, what must be repaired, and which options are genuinely appropriate for your home.
If you have been given the all-clear and need help with a gas piping or related plumbing issue, contact Santhoff Plumbing.
Emergency Resources
- City of Houston: Important phone numbers and natural gas leak guidance
- CenterPoint Energy: Natural gas leak safety
- CenterPoint Energy: Safety and emergency resources
- CenterPoint Energy: Call before you dig
If you smell gas now: leave immediately, call 911 and CenterPoint from a safe location, and stay out until officials give the all-clear.
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