Gas Leak Detection & Repair — Los Angeles & the Valleys 

Think You Have a Gas Leak? We’ll Find It — Licensed and Fast.

Electronic gas detection and pressure testing from a licensed, family-owned LA plumber since 1997. We locate the leak, show you what we found, and repair it to code, with the permit handled. 24/7.

  • Licensed CA #1067555
  • Bonded & Insured
  • 24/7 Since 1997
  • 5.0 ★ (300+ ratings)

Book an Appointment

GAS LEAK CHECK — Confirmed Within 1 Hour

Advantage Plumbing & Rooter Booking Form_Updated

🔒No obligation. Confirmed within one hour. Never shared.

Signs of a gas leak

Rotten-egg / sulfur smell (the odorant added to natural gas)

Hissing or whistling near a line, meter, or appliance

Orange or yellow burner flame instead of crisp blue

Dead patch of grass or plants over a buried gas line

Gas bill jumped with no change in usage

Headaches, dizziness, or nausea that improve when you leave the house

If you smell gas, get out first — then call. 

Why LA-area gas lines leak

Gas leaks in LA-area homes come from a short list we see over and over: corroded steel piping in pre-1970 homes, loose or aging appliance connectors (water heaters, ranges, dryers, pool heaters), joint separation from ground movement — a real factor in a seismically active region — and buried yard lines running to detached garages, fire pits, and pool heaters that were installed decades ago and never inspected.

Gas is the one system where licensing genuinely matters: it must be tested properly, repaired to code, permitted, and inspected. We’re California licensed #1067555; we carry the electronic detection equipment to pinpoint a leak rather than guess, and we pressure-test the system afterward to prove it’s tight. That’s the difference between “we think we got it” and a documented, verified repair.

professional gas leak detection services

What we do

Electronic leak detection

Pinpoint the source

Line pressure testing

Verify the whole system

Gas line repair & replacement

Repair or replace damaged gas lines

Appliance connection checks

Heater, range, dryer, pool heater

Buried yard-line locating & repair

Find and fix hidden gas lines

Permit + inspection handled

We handle required permits and inspections

How it works

01

Call — 24/7

If you smell gas, get out of the house first and call from outside.

02

We detect and pressure-test

You see exactly what we found, with a written price.

03

We repair to code, permit, and re-test

We prove the system is tight. Guaranteed.

gas leak repair services

Cost

Detection/testing is a modest flat rate. The repair depends on what we find — a loose connector is minor; a corroded buried yard line is a bigger job. Written price after diagnosis, permit included where required. You approve before we start. We will never scare you into work you don’t need — we show you the reading.

Why LA chooses Advantage Plumbing & Rooter

24/7 real people

Written prices up front

Licensed CA #1067555

Family-owned since 1997

Permits & inspections handled

Verified pressure test after repair

Rated 5.0 ★ across 300+ reviews

Posted on Google Google
Richard Pepper profile picture
Richard Pepper
9 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Amazing technicians, knowledgeable, incredible Office help
Posted on Google Google
Bill Tom profile picture
Bill Tom
8 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Always professional. Thanks Albert and Warren.
Posted on Google Google
Alberto De Diego profile picture
Alberto De Diego
8 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Frank with Advantage Plumbing is really excellent. He’s been out to our house in South Pasadena a few times. He’s always on time, can come on short notice when needed, and is super professional and capable. Always gets things fixed quickly at a fair and reasonable rate. He’s also a super nice guy. Always asks about our dog, for example, who’s been having medical issues lately! Class act.
Posted on Google Google
Angelo Incardona profile picture
Angelo Incardona
7 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Frank (the plumber) did a great job installing our tankless water heater. It was a tough job under the blazing heat conditions.
Posted on Google Google
Michele Hamburger profile picture
Michele Hamburger
3 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Simply the best. I was able to reach someone at 10pm on Friday night and they arrived at 6am Saturday and fixed my water heater in 30 min. Trustworthy and skilled, highly recommend
Posted on Google Google
Ann Kochakji profile picture
Ann Kochakji
3 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We've hired Advantage Plumbers for three jobs so far and are very happy with their work. Their prices are reasonable and the plumbers go out of their way to make sure the job is done right. They make suggestions when needed which is helpful and even pick up parts when necessary. We would especially like to acknowledge Victor and his assistant for fixing the leak in our outdoor pipes.
Posted on Google Google
Mihran Asatourian profile picture
Mihran Asatourian
2 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Great company. Called them for a leak under kitchen sink (cat stood on pipe and the weight separated the connections). They offered to send someone same-day, but I opted for next morning instead. I love that they use a one hour appointment window, instead of 3-5 hours like other companies. Technician, Victor, arrived right on time, explained the issue to me and pointed out a couple other problems, fixed everything and tested everything thoroughly before leaving. I told him about the cat and he made sure to "cat proof" the connections. Like I said, great company, don't hesitate to use them.
Posted on Google Google
Mark J profile picture
Mark J
1 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Frank has done work at my properties for ages. He's always been congenial, forthright, and honest with me, even erring on the side of caution when necessary because he knows that doing a job right is the utmost importance.
Posted on Google Google
Abira Ali profile picture
Abira Ali
1 October 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We had Advantage plumber Frank come over to flush our tankless hot water system. He was very efficient, friendly and got everything done and operating- no fuss- no muss- so nice to have hot water. Thanks Frank!
Posted on Google Google
Andrew Sanesi profile picture
Andrew Sanesi
30 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
The Best! Period
Posted on Google Google
Annie Alwin profile picture
Annie Alwin
28 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Love Steve and the Advantage team. Day or night, they get the job done. So glad they are my plumbers. They always get it done right, are friendly, courteous and so knowledgeable!
Posted on Google Google
Daniel Haas profile picture
Daniel Haas
26 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Advantage Plumbing repiped my entire crawl space, including the main line under my house and the lateral line in my front yard, this past week. I interviewed six companies before choosing them, and from the first visit through project completion, the experience was exceptional. They gave me a fair, respectable quote, and the work was fully permitted (Advantage pulled the permit at a modest cost). Even the city inspector said, "Nice work!" The crew was punctual, courteous, hardworking, and clearly knowledgeable — top-notch in every way. For the front yard line, they used pipe-bursting technology, so my yard didn't need to be dug up. The new line will last 100 years. Every part of the job — proper strapping, quality materials, multiple cleanouts — was done to the highest standard. This was truly exceptional work, and I'm grateful for their dedication. Thank you to Steve, Johny, and the entire crew for a job so well done! Separately, before the repiping project, I had Advantage come out to snake a clogged tub drain. They arrived the same day and did a great job. Alfonso and Jose were punctual, kind, friendly, and attentive — another job well done!
Posted on Google Google
Grant McCullagh profile picture
Grant McCullagh
25 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
We are very pleased with Steve’s service, keep up the good work!!
Posted on Google Google
Debbie Kurth profile picture
Debbie Kurth
25 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
There are simply not enough complements I can give this team. I had a water dripping on the street issue that ai could not figure out . When soap bubbles appeared, we realize the problem was the sewer . Steve rearranged his team schedule to get the problem fixed and fast. The pipe, on a hillside was scoped with a camera revealing the severity of the 90 year old cast iron pipes. A replacement was needed. One can only shudder to think the cost of that. Using new technology called pipe lining, not only was the pipe repaired from the inside out , they even managed to clean the pipe below the street, saving us thousands of dollars!! . They even found a fresh water leak and were able to repair it while the pipe was exposed. The entire job was done in a day. I simply cannot sing high enough praises for Steve and his team. Professional, caring, on time with a fanatic work ethic. Steve truly cares about people and not just money . Look no further when needing help with an unpleasant issue of plumbing. UPDATE: Had another leaking pipe problem. . Advantage sent Plummer Frank whose long experience in the field, quickly and easily fixed the problem. Thank you!
Posted on Google Google
Alexis Bradley profile picture
Alexis Bradley
24 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Victor with Advantage Plumbing & Rooter was fantastic to work with. He quickly solved our water pressure issue, took the time to listen to our longer-term plumbing goals, and scheduled a follow-up to address everything else we need. We were thoroughly impressed by his expertise. Highly recommend!
Posted on Google Google
Jeffrey Woldhuis profile picture
Jeffrey Woldhuis
24 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Advantage Plumbing helped me out tremendously. Their guy Frank is great. I had an upstairs leak in a wall that he investigated and found the location of quickly without damaging too much of my wall. I would highly recommend this company.
Posted on Google Google
Shelby Button Cotten profile picture
Shelby Button Cotten
23 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Frank came by to fix our clogged sinks and he was friendly, knowledgeable, and efficient. Can't ask for more from a plumber! I will be recommending to my neighbors.
Posted on Google Google
Rachael Cottrell profile picture
Rachael Cottrell
23 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Jose came to service a dishwasher draining issue and he came with a happy and knowledgeable attitude. So grateful for honest service people, HIGHLY RECOMMEND Advantage!!!!
Posted on Google Google
Casey R profile picture
Casey R
23 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’m so glad we went with Advantage Plumbing for our water heater replacement. I expected the process to be a bit of a headache, but they made it surprisingly easy. They showed up right on time, were friendly and respectful, and completed the job without any unnecessary complications. The new water heater was installed efficiently, and everything was cleaned up and left in order. I really appreciated how easy they were to work with. I’d happily recommend Advantage Plumbing to friends and family and would definitely call them again.
Posted on Google Google
Don Straney profile picture
Don Straney
21 September 2026
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Fast, dependable, kept me informed.
Verified by Trustindex
Trustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
Better-Business-Bureau-A-Rating Logo
Licensed and Insured Plumber Icon
 

Frequently asked questions

Leave the house immediately. Don’t operate switches or phones indoors; don’t light anything. Call the gas company from outside, then call us at (626) 956-3708. 

Electronic detection equipment plus a system pressure test — that pinpoints the source instead of guessing, and proves the fix afterward. 

Yes — gas work generally requires a permit and inspection. We pull it and meet the inspector. 

Yes — water heater, range, dryer, pool heater, and buried yard lines to garages or fire pits. 

Yes. Gas is not something to sit on overnight. 

Yes — California License #1067555, bonded and fully insured.

Get Your Gas System Checked — Licensed, 24/7, Confirmed in 1 Hour

  • Licensed since 1997
  • Written pricing
  • Local, family-owned
  • Available 24/7

Book an Appointment

GAS LEAK CHECK — Confirmed Within 1 Hour

Advantage Plumbing & Rooter Booking Form_Updated

🔒No obligation. Confirmed within one hour. Never shared.