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What to Do If You Smell Gas in Your Home (A Homeowner’s Step‑by‑Step Guide)

Jun 08 2026 03:00

If you smell gas in your home, treat it as an urgent safety issue—no exceptions. The first priority is to get everyone out of the house immediately. Do not flip light switches, use appliances, or make phone calls while inside. Once safely outside, call your gas company to report the emergency, then contact a licensed gas plumber to identify and repair the issue once the area is cleared.

Below is a clear, homeowner-friendly guide to understanding what gas smells like, what causes leaks, how detection works, and exactly who to call and when. As Clayton, NC’s specialty gas plumbing team, Pro Maxx One Plumbing—led by Eric, known around town as the Gas Guru—is here to help once the utility confirms it’s safe.

1. Leave the House Immediately

The moment you detect that familiar “rotten egg” odor, get everyone out right away. Natural gas is normally odorless, but utility companies add a chemical called mercaptan that gives it a strong sulfur smell so you can recognize a leak quickly.

Do not stop to open windows, search for the source, or collect belongings. Getting distance from the building reduces your risk and gives professionals room to respond safely.

2. Don’t Touch Light Switches, Electronics, or Appliances

Any spark—even something as small as flipping a light switch, plugging in a device, or using your phone inside—can ignite gas. Once you’ve stepped outside, move away from the home before using a phone or smart device.

3. Call Your Gas Utility From a Safe Location

Your gas company is responsible for shutting off the supply and ensuring the property is safe for anyone to enter. They have emergency response protocols, specialized equipment, and the legal authority to secure the system up to your meter.

After the utility completes their inspection and gives the all-clear, it’s time for step four.

4. Call a Licensed Gas Plumber (That’s Us!)

Once the area is safe, Pro Maxx One Plumbing can inspect, locate, and repair the leak inside your home. With nearly 30 years of gas utility experience, Eric—the Gas Guru—brings deep expertise in natural gas and propane systems. Our team specializes in Gas Leak Detection and full Gas Services including repairs, appliance hookups, new line installation, and full-system inspections.

5. Know What Gas Smells Like

Natural gas on its own is completely odorless, so utilities add a substance called mercaptan. It smells like rotten eggs or sulfur—strong, unmistakable, and intentionally unpleasant. If you smell that odor, even faintly or intermittently, treat it as a real leak until proven otherwise.

6. Understand What Causes Gas Leaks

Gas leaks can happen for several reasons, and knowing the possibilities helps you respond appropriately:

  • Loose or aging connections: Appliances, fireplaces, dryers, and ranges can develop leaks at joints or valves.
  • Corroded underground lines: Older homes may have lines that have weakened over time.
  • Improper appliance installation: Gas appliances must be installed by trained professionals to ensure proper sealing and venting.
  • Outdoor damage: Landscaping, construction, or digging can disturb buried lines.

Because gas lines serve different appliances, a leak doesn’t always come from where you expect. That’s why professional detection is essential.

7. How Gas Leak Detection Works

After the utility confirms your home is safe to enter, a gas plumber uses specialized tools to pinpoint the source. At Pro Maxx One Plumbing, we rely on equipment that detects extremely small concentrations of natural gas or propane—far below what homeowners can smell.

We inspect fuel lines, appliance connections, valves, and joints throughout the home. If your property uses propane, we also inspect regulators and tank lines. Our goal is to identify the exact location of the leak and verify the integrity of the entire system.

8. When to Call the Utility vs. When to Call a Plumber

Call the gas company first if:

  • You smell gas inside or outside your home.
  • You hear hissing near the meter or an underground line.
  • A neighbor reports a leak or you notice dead patches of grass near buried lines.

The utility handles anything up to the meter. Once they turn off the gas and confirm safety, the next call is ours.

Call a plumber (like us) for:

  • Leaks inside the home
  • Damaged or aging interior supply lines
  • Gas appliance repairs, replacements, and hookups
  • Outdoor kitchen, grill, fire pit, or pool heater line issues
  • New gas line installation or propane conversions

Think of the utility as the emergency responder and Pro Maxx One Plumbing as the repair expert who makes your system safe, reliable, and compliant again.

9. After a Leak Is Repaired: What Happens Next?

Once repairs are complete, our team performs a pressure test to ensure the entire gas system is secure. This step is essential before gas service is restored. We also check that every appliance is operating safely before we leave.

FAQ

How do I know if I really have a leak?

The strongest indicator is the rotten egg smell. Other signs may include hissing sounds near appliances or lines, higher-than-usual gas bills, dead vegetation near buried lines, or appliances malfunctioning. When in doubt, treat it as a leak and call the utility immediately.

How fast can a plumber come out?

Once your gas company clears the property, Pro Maxx One Plumbing can typically provide same-day service for gas leak issues in Clayton, NC and surrounding areas. Gas safety is a top priority, and we respond quickly to keep your home safe.

Will my homeowner’s insurance cover this?

It depends on the policy and what caused the leak. Many insurance plans cover sudden or accidental damage but may exclude issues related to aging lines or deferred maintenance. If needed, we can provide documentation of the repair to support your claim.

Once the utility confirms your home is safe, call Pro Maxx One Plumbing—Clayton’s trusted team for gas leak detection, repairs, and safe, reliable gas line work. Eric, the Gas Guru, and our local family-owned team are here to help you protect your home and get your system running safely again.