Professional Gas Leak Detection in Houston

Licensed gas plumbers who find leaks fast and make your home safe again.

A gas leak is one of the few plumbing problems that can put your family in real danger. Even a small leak can raise your gas bill, make people feel sick, and in the worst case, lead to a fire or explosion. If you think something is wrong, it is always worth having it checked.

Nick's Plumbing & Air Conditioning has provided gas leak detection in Houston since 1979. Our licensed gas plumbers use electronic detectors and pressure testing to pinpoint leaks inside and outside your home, then make the repair the right way.

Smell gas right now? Leave first, call second. Get everyone out of the house and leave the door open behind you. Do not flip light switches, unplug anything, use the garage door opener, start a car, or light a match. Once you are well away from the home, call 911 or CenterPoint Energy's gas emergency line. After the utility makes the area safe, call Nick's Plumbing at (713) 868-9907 to find and repair the leak.

Signs of a Gas Leak

  • Rotten egg smell - Natural gas has no odor, so utilities add a sulfur-smelling chemical called mercaptan to help you notice leaks
  • Hissing or whistling - A sound near a gas line, meter, or appliance usually means a larger leak
  • Dead grass or plants - A strip of dying vegetation over a buried gas line can point to an underground leak
  • Bubbles in standing water - Bubbling in puddles or wet soil near the gas line
  • Higher gas bill - A jump in usage you cannot explain
  • Feeling unwell at home - Headaches, dizziness, nausea, or fatigue that improve when you leave the house
Family leaving their Houston home and calling for help after smelling gas
If you smell gas, get everyone out first. Make the call once you are safely away from the house.

What Causes Gas Leaks?

  • Loose or worn fittings - Threaded joints and unions can loosen over time, especially when appliances are moved
  • Old appliance connectors - Flexible connectors behind ranges, dryers, and water heaters wear out, and older uncoated brass connectors should be replaced
  • Corrosion - Steel gas pipe rusts in damp crawlspaces and along exterior walls
  • Shifting soil - Houston clay soil expands and contracts, putting stress on buried lines and foundation penetrations
  • Accidental damage - Digging, fence posts, and remodeling work can nick or break a gas line

How We Find Gas Leaks

  1. Make it safe - We check the area and shut off gas to the affected line if needed
  2. Electronic detection - A combustible gas detector sniffs out gas at valves, fittings, appliances, and the meter connection
  3. Soap testing - A leak detection solution bubbles at the exact joint that is leaking
  4. Pressure test - We isolate the system, pressurize it, and watch a gauge. If the pressure drops, there is a leak somewhere in the piping.
  5. Explain and repair - We show you what we found, give you an upfront price, and fix the leak
Soap bubbles forming on a leaking threaded gas pipe fitting during a leak test
Soap solution bubbles at a leaking joint, showing our plumbers exactly where the repair is needed.

Leaks You Cannot Smell

Not every leak is obvious. Gas escaping outdoors near the meter, under a pier and beam home, or from a buried line can be carried away by the wind before you notice the odor. A rising gas bill, dead patches in the yard, or a hissing sound outside are all reasons to call for professional gas leak detection, even if you do not smell anything inside.

We also recommend a carbon monoxide alarm on every level of your home. Gas appliances that are not burning properly can produce carbon monoxide, which has no smell at all.

Gas Line Work Requires a Licensed Plumber

In Texas, gas piping on the house side of the meter must be installed, repaired, and tested by a licensed plumber. Most gas work also requires a city permit and inspection, and the gas utility will not turn service back on until the system passes. Our licensed plumbers pull the permits, perform the pressure test, and coordinate the inspection so your gas is restored as quickly as possible.

Gas Leak Detection Cost in Houston

Gas leak detection at Nick's Plumbing typically costs $350-$900. The price depends on the size of your gas system, how many appliances are connected, and how hard the leak is to reach. Repairs are quoted separately, and we confirm the price before any work begins.

Once the leak is found, our gas line repair team can fix it the same visit in most cases. If your piping is old or corroded throughout, ask about gas line replacement. For peace of mind every year, schedule a gas line inspection.

Why Houston Homeowners Trust Nick's Plumbing

  • Family owned since 1979 - More than 45 years serving Houston homes
  • Licensed and insured - Texas Master Plumber License MPL# 38548
  • Background-checked technicians - We email you the names and photos of the technicians coming to your home
  • Upfront pricing - You approve the price before we start
  • VIP members save - Priority scheduling and 10% off with our VIP maintenance plan

Serving The Heights, Montrose, Memorial, Garden Oaks, Oak Forest, and surrounding Houston neighborhoods.

Frequently Asked Questions

What should I do if I smell gas in my house?

Leave the house right away with everyone inside and leave the door open. Do not use light switches, phones, or anything that could make a spark. Once you are well away, call 911 or CenterPoint Energy's gas emergency line, then call a licensed plumber to repair the leak.

How much does gas leak detection cost in Houston?

Gas leak detection at Nick's Plumbing typically costs $350 to $900, depending on the size of the system and how hard the leak is to reach. Repairs are quoted separately before any work begins.

Can you have a gas leak without smelling it?

Yes. Leaks outdoors, under a pier and beam home, or underground can be carried off by the wind. A high gas bill, dead grass over the gas line, or a hissing sound are other warning signs.

How do plumbers find a gas leak?

We use an electronic combustible gas detector, a soap solution that bubbles at leaking joints, and a pressure test that shows whether the system is holding pressure.

Will the gas company fix a leak in my house?

The gas utility is responsible for the line up to and including the meter. Piping on the house side of the meter is the homeowner's responsibility and must be repaired by a licensed plumber.

Worried About a Gas Leak?

Our licensed gas plumbers will find the leak, explain your options, and make your home safe.

Call Now: (713) 868-9907 Schedule Gas Leak Detection

Electronic Detection • Pressure Testing • Licensed Plumbers

Ready to Fix Your Plumbing Problem? Call Nick’s Plumbing Today

If you’re facing a plumbing problem, Nick’s Plumbing is available to help. We proudly serve customers in Houston, TX, and beyond. To find out more or to schedule a service or consultation, contact us today!

Gas Leak Detection

Starting at $350
Average: $350 – $900
Updated June 5, 2026
Plumbing Cost Guide

 

Pricing quoted is not the final cost

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