Seismic Gas Shut-Off Valve Installation in San Diego
Automatic Gas Shut-Off During Earthquakes
Keep Your Home Safe
In Southern California, earthquakes aren’t a matter of if—they’re a matter of when. A seismic event can damage gas lines in seconds, turning a natural disaster into a dangerous emergency. That’s why homeowners across San Diego, CA trust Core Plumbing for professional seismic gas shut-off valve installation services.
At Core Plumbing, we believe safety should never be left to chance. Seismic gas shut-off valves are designed to automatically stop the flow of gas when significant ground movement is detected, reducing the risk of fire, explosion, and gas exposure. Our experienced plumbers act as your guide, explaining how the system works and ensuring it’s installed correctly and to local code requirements.
Core Plumbing stands out because we focus on precision, compliance, and long-term protection. We carefully evaluate your gas system, select the proper valve, and complete the installation with expert care. Every detail matters when it comes to protecting your home and family.
Reviews From Our Clients
They did a great had several issues but they took care of it in a few hours
James Herzig
23:11 30 Jan 26
Had several issues they took care in just a few hours very friendly and professional and kept everything clean
jAMES HERZIG
21:57 29 Jan 26
Elizabeth Gamboa
22:15 21 Jan 26
Our shower head repair was handled in a professional and timely manner for a fair cost. The repair professional Joe handled things perfectly and was very nice. I even got to meet the owner Don who had an amazing tool that came in handy at the time. They also offered ideas when we decide to do renovations to the bathroom, and that they could do the work in the future. Highly recommend.
Wayne Strickland Jr
19:00 20 Jan 26
Repair leak behind shower wall and hose bib buried in stucco.
Brian Hedges
20:17 14 Jan 26
As usual, the team sent to my home was informative, professional and explored options for the repair to meet my needs.
Francine Martinez
18:17 14 Jan 26
Quick and friendly service. All techs were very professional. They took the time to carefully explain all the work needed and potential areas of concerns to address as well. Very happy with the repair work.Adding to this as they had to take care of some additional work items for me. Plumber was again, very friendly and thorough in his work. Superb job on installing new PEX piping, regulator, and washer box.
John Boreham
21:38 13 Jan 26
David arrived when he said he would, explained how best to approach the job and did a good job. Great experience.
Pavlina Otmar
20:24 06 Jan 26
Arrived at arranged time, explained the options and completed the work in a prompt and professional manner.
Larry Warner
20:06 06 Jan 26
Nice people, good company. Seemed a little on the pricey side for 2 1/2 hours work, but you get what you pay for and they did a good job.
surfsnowgreen
15:03 26 Dec 25
I am a strong believer in customer service, this company reflects that. Not only was Kevin polite and courteous, he was thorough, efficient. and quickly repaired the leak. I will use Core Plumbing again.
Julie Fontenot
10:34 25 Dec 25
Very happy with the end result and would definitely use this company in the future.
KEVIN
00:39 24 Dec 25
Service was fast, effective, professional, and friendly. The team arrived on time and the ability to schedule appointments and track their arrival online was fantastic. My only qualm is that the cost of a drain cleaning visit ($517 for less than an hour’s work) felt unreasonably high.
Luke Dumas
23:18 19 Dec 25
William Hallinan
15:23 17 Dec 25
Great techs... congenial and got the job done. Thank you!
Marilyn Hetherington
22:55 16 Dec 25
Kevin, Joe, and Luke came out and worked on my house. They replaced two sinks and a toilet and fixed the flange as well as shut off valves that were corroded. They worked hard and finished by the end of the day. Super polite and nice and trustworthy. Recommend!
Joanna Miller
01:48 13 Dec 25
Always does good work for us
Steven Anagnostis
19:21 11 Dec 25
Great experience with Joseph and the rest of the Core Plumbing Team. They were on time, communicative, and professional throughout our work with them, which included a clog removal and hot water heater installation. Highly recommended!
nef2110
18:28 09 Dec 25
Joe did a great job. He was very quick and left the job very clean.
Peter Smith
00:00 06 Dec 25
Core Plumbing was absolutely fantastic. They came out to replace two shower valves, and the entire experience—from scheduling to completion—was smooth, professional, and stress-free. The technicians arrived on time, respected my home, and communicated clearly about what they were doing and why.What really stood out was the quality of their workmanship. They handled what could’ve been a complicated job with total confidence and efficiency, and the final result is flawless. Everything works perfectly, and they left the space cleaner than they found it.It’s rare to find a team that brings this level of skill, care, and professionalism to the table. I’d recommend Core Plumbing without hesitation to anyone needing plumbing work done right the first time.
Paul Robinson
19:42 04 Dec 25
Matt Eklund
02:11 02 Dec 25
Been using Core Plumbing for years, always skilled and amazing service! Thanks!
Ginger Jeffries
23:47 24 Nov 25
Great people and great service!
Tyler Leslie
16:26 20 Nov 25
I highly recommend Core Plumbing. They are a family owned company and it definitely shows!! They take care of you and your plumbing needs like family. They are thorough and thoughtful. They are not overpriced. They did a fantastic job and I highly recommend them!
Jocelyn Duerrmeier
04:17 16 Nov 25
Have had multiple issues recently and called them for leak detection. Polite and professional crew. Would recommend their services to anyone.
Gee Dominguez
04:14 13 Nov 25
I called them as a second opinion on a stuck bathtub. The previous plumber had recommended opening the dry wall or digging up the floor. Core cleared the blockage in a half hour with none of that. Really appreciate them.
Rai Wilson
17:06 27 Oct 25
reasonable price, attention to details, and quality job.
Hanfang Pan
20:38 22 Oct 25
Kevin and Joe did an outstanding job and represented their company professionally. Work was completed in a reasonable amount of time to our satisfaction
Jeff Orr
20:19 22 Oct 25
I had Core Plumbing out a week ago to fix a leaky faucet in one bathroom and replace a bad stopper in the other bathroom. I was extremely happy with their telling me and showing me what was wrong. It was so nice to have such professionals working iin my home. - Russel
Russel Ray
02:34 17 Oct 25
I would recommend using Core Plumbing. They have complete several projects for me. Joseph Porter Is particularly good!
T Thomas
02:04 15 Oct 25
We've used Core Plumbing many times with success and our recent repair of a leak in the main line to the house was no different. The service was prompt and the team was uniformly professional and interested in our concerns and property. Count us as very pleased!
N Eastman
23:19 10 Oct 25
They replaced the valve for the refrigerator water line. Did a good job but it was very expensive. If you have a small job like mine I would recommend someone else.
Mark Reinig
03:23 09 Oct 25
They always do an excellent job of explaining what is going on and the options to fix it.
Wade Mears
03:11 09 Oct 25
I found Core Plumbing through Yelp because I had a kitchen sink leak issue that has been an issue on and off for months and has just gotten worse. Core Plumbing did a free estimate and I also appreciate the transparency. Kevin was very professional, friendly, and helpful! He explained what was wrong, what he was doing, and why, which I truly appreciate. They ended up fixing the water pressure (which was reading at 82 versus the 65 that it should be), replacing the air gap, the air admittance valve, and replaced the piping that was previously glued (so if there is blockage, we can easily remove and clear the pipe and put it back on). He also advised of additions that would be helpful, but did not try to oversell me, which I appreciate and have written down his recommendations. The work was done within the day and I couldn’t be happier, a bunch of stress off the shoulders - thank you, Kevin, and Core Plumbing! Would definitely recommend (pictures are before and after)!
Ana G.
22:47 07 Oct 25
Great experience with core plumbing from start to finish. Prompt, knowledgeable, honest, personable, helpful, and most importantly a job well done at a reasonable price. Highly recommend.
BB Acting Studios
17:37 06 Oct 25
If you need help with a plumbing problem, you can't go wrong reaching out to Core Plumbing for help.We recently had to have our water service from the street to the house replaced, which of course meant digging a trench across the yard. I knew that the plumbing work would be top notch when I called Core, because we've had them handle a couple of other significant jobs that went really well.What I didn't expect, though, was what a great job Core would do minimizing the impact on the yard from the trench work. You can hardly tell a trench went through the yard just over a week ago!Many thanks to Grant, Joe, Josh, and David for a job really well done.If you need help with your plumbing and you're not sure who to turn to, give Core Plumbing a call . . . I know I'm glad I did.
Jeff Kester
14:47 30 Sep 25
Kevin came on time and did a phenomenal job. Top notch work and a nice person also. Very informative and knowledgeable. Highly recommend
Leon Julian
16:36 25 Sep 25
Great experience working with the Team. Kevin did a great job explaining everything and helping me with my aged Water Heater replacement and main gas valve replacement. Quality of work is very good and price is transparent and fair...I would recommend to anyone looking for plumbing services.
Paul Palomares
02:16 23 Sep 25
Amazing service, very informative and friendly. I highly recommend Core Plumbing.
Peter Hong
17:09 22 Sep 25
I needed a new tankless water heater, I called Core Plumbing having used them in the past. Kevin came out on Tuesday to evaluate and gave me a quote of what a new unit would cost. Wednesday morning Kevin and Joseph returned and installed my new unit!
Paul Gaca
17:22 18 Sep 25
Fast and good work!
Andrew Nurre
16:20 16 Sep 25
Joe was very helpful and informative. He did a great job.
Wayne Leland
15:59 16 Sep 25
Paul Genato
20:49 13 Sep 25
Very knowledgeable and kindhearted individuals, they took care of a time sensitive issue urgently and expertly. I highly recommend them to anyone for their plumbing needs.
Danielle Fimbres
23:17 11 Sep 25
Joseph with Core Plumbing did an amazing job replacing out shower unit in our new home. He came on time, explained everything clearly. Communication from Joseph and the team was great, the job was finished in a timely manner. The work was professional and we will continue working with Core Plumbing for future projects.
Alex Artates
21:27 11 Sep 25
Job well done! I was able to ask many questions regards to future plumbing needs. Grant was very informative and gave realistic options and considerations.
Caroline Edkins
00:28 09 Sep 25
Core Plumbing was excellent! Tony Halvorson and David Ortega replaced a faulty regulator running at 80 PSI and swapped out a toilet tank upstairs. The app and text updates made it easy to track estimates and arrival windows, which gave me peace of mind while helping my elderly mom. Prices were standard, the service was honest, and the whole process was smooth and professional. Highly recommend!
Will Duke
20:04 08 Sep 25
They were great. In and out in no time and did an excellent job.
Scott Hooten
00:27 07 Sep 25
Joe arrived promptly and quickly assessed our issue and provided multiple quotes depending upon how much old piping we wanted to replace. He was super knowledgeable and answered all questions we had including extra advice on an aging water heater. Truly professional all the way.
Matthew Shade
23:22 05 Sep 25
Do you know a great plumber is hard to find?We found one, actually two, Kevin and Jordan at Core Plumbing!Our relatively new, hybrid water heater never seemed to have hot water when we wanted to shower! It was a constant, frustrating issue! Our neighbor told us about Core Plumbing and they came took a look, diagnosed the problem, and the best part is they took the time to explain the problem to us. It was a faulty, 25 year old pump and missing check valve. They did a great job fitting a new one into the system. They were professionals from start to finish! Fair, fast (completed to job in about an hour), and professional! We highly recommend Core Plumbing!
Karen McCann
15:15 04 Sep 25
Great team - really appreciate the quality work and hard work!
Mark Christy
04:22 04 Sep 25
Core Plumbing is my plumber. Over the past three years Core Plumbing has completed over $25,000.00 worth of work. Everything from Gas Range install, Tankless Water Heater, Washing Machine Connections, Outside Faucet Leak, Jones Valve replacement, to the inner guts of the toilets. Everything that these guys do is professional. I have worked with Grant and Tony on several of these jobs. Trust me, Core Plumbing is as good as it gets.
Rick Pernell
17:14 28 Aug 25
Professional, prompt and friendly. Highly recommend and will use again.
Kristen Rogers
23:20 27 Aug 25
Core Plumbing is reliable, professional and always does excellent workmanship. Their communication and follow through is perfect.
Jennifer Albert
17:39 25 Aug 25
Incredibly professional, efficient, and made the whole process easy. Very personable and trustworthy people.
Rebecca Thiem
20:43 22 Aug 25
Our plumber, Michael, is a through professional. Completed our air gap install on our dishwasher and tested the dishwasher to make sure everything was functional.We will use Core plumbing again- they are our plumbing professionals.
Scott O
05:20 22 Aug 25
Jake did a great job setting up the smart valve. He was quick and very efficient. He was knowledgeable and very thorough. Explained what was going on and how the valve worked.
Len Cigainero
21:46 21 Aug 25
Our 31 year old main water line from the meter to our garage had a pin-hole leak near the meter. Core Plumbing was one of three bids to replace the line. Their bid was in the middle, but they were the most professional in assessing the job. We saved some money by having our landscaper dig the trench to Core's specifications. I was impressed that Core Plumbing insisted on providing the sand to protect the new 1 inch PEX line and do the backfilling and compacting. Communication with the company was excellent. Our crew of Greg and Eli showed up on time and were very conscientious and skilled. I would highly recommend this company and will use them again when the need arises.
Ron Jones
00:49 16 Aug 25
Joseph did a great job and the area he had to work in was very cramped....but he persevered and delivered the good.
Tom C.
05:01 15 Aug 25
This is the second time we have had Core Plumbing come for a plumbing issue and they are always fantastic to work with.
jllgzt
04:00 06 Aug 25
Great service - showed up as promised, provided a fair estimate, did the work quickly and efficiently, quality assured the new connections and cleaned up.
David Jardine
22:18 05 Aug 25
The people at Core plumbing were very professional and quick to get the job done. They also helped me deal with insurance when my water heater leaked. I wouldn't have been able to communicate with the insurance company if it wasn't for them. They also reply to emails very quickly.Thank you
Sandra Zebaze
03:07 05 Aug 25
As always with Core, quick to respond, transparent, friendly, and thorough.
Rick Sliter
20:00 04 Aug 25
Great job by Core Plumbing. On time, efficient & helpful staff and job completed
Ronald Hall
18:00 04 Aug 25
The guys from Core Plumbing came by and fixed a few things for us, including replacing the water heater. They did an awesome job, and were great to work with. We will definitely be calling them for anything plumbing related in the future.
Kyle Frey
15:35 28 Jul 25
Stan Mccloskey
14:43 24 Jul 25
Vaidehi Joshi
17:46 23 Jul 25
Core plumbing was on time and on budget. They did a great job
greginthedesert
01:15 22 Jul 25
Friendly, professional, respectful of home and very knowledgeable!
Amy
20:34 19 Jul 25
Tony was our main contact for consult, quote and work done. He did have another person with him. The process was easy and both of the men were respectful, tidy and got the simple job done that I needed. They installed a new bib on our upper patio. Very happy to have this done.
Alyssa Chapman
19:48 15 Jul 25
Prompt, professional and did a great job
Larry Kloha
23:29 14 Jul 25
Two guys came and were great. They explained every little detail of the plumbing in our new house - super appreciative. We had them do one fix the day of, and it was a challenging space but they figured it out without cutting a huge hole in our wall, which was great!
Shelby Kehr
04:27 07 Jul 25
Though I was shocked how much water heater replacement costs went up, I would like to say that technicians were very good andand the communication was decent. Their bill was noticeably lower than another company's.
Walt Jevremov
02:32 26 Jun 25
Tony showed up and was able to do the repairs the same day we called. He was friendly and explained the options / benefits of repair vs. replace, did good work and left the bathroom clean.
Chris Wasden
15:45 21 Jun 25
Core plumbing was super professional, and helped resolve our issue within an afternoon. They uncovered things we didn't even know were there! Would highly recommend.
Morgan King
22:12 19 Jun 25
Prompt quality service. Explained everything before and after the job was completed.
Ron Rodolfo
23:56 16 Jun 25
Very professional service. Propane hookup to grill and fire box.
Tom Carrier
18:27 14 Jun 25
Shane and Jake did a great job. Very professional and clearly are plumbing pros!
Sharon Hartmann
02:02 11 Jun 25
Tony fixed a shower valve issue for us after a less than perfect job on a new shower install. He did a thorough assessment and took the time to explain the issue and possible resolutions. He also looked at some other maintenance plumbing projects and provided estimates for those as well. Overall, we recommend Core Plumbing. We are very happy with the professionalism and work performed by Tony.
Carol Kaiser
18:01 04 Jun 25
Incredibly professional and thorough service. Responded same day as my call and fixed my problem. Highly recommend.
Andrew Craig
20:39 30 May 25
Service performed was excellent. Replaced a broken flange, cleared clogged pipes between main and toilet. Thank you again!
Otterpop
18:34 27 May 25
Excellent service. The two service people who came out were clear in describing the options available and the processes needed to fix our issue. Easy to schedule and completed the job quickly. Highly recommend.
Jen Lineback
23:02 19 May 25
I highly recommend this company. I have unfortunately tried other plumbers or handymen, but will not any longer. These guys get the job done correctly the first time. Always professional and courteous.
Terri Russo
18:07 17 May 25
Wow CoreThey took care of a leaking area.Plus the office staff very professional. Core Plumming Thanks to all Tony David List and the whole family at Core Plumbing😀Linda Schmalfeldt
Linda Schmalfeldt
00:54 17 May 25
Core Plumbing replaced my water heater and a water bib for me yesterday. They arrived on time, performed the work quickly and professionally. This is my go-to company for all plumbing needs.
Patty Degen
18:14 16 May 25
I have used Core Plumbing for several years to service, repair, and resolve various issues including water heater and water pressure regulator replacement. The whole team does a great job in communicating their availability and ETA for arrival. The work is completed professionally and the site is cleaned up upon completion. Thanks Kevin & Kevin!
Norman Ko
20:41 13 May 25
Back at it again with terrific work and experienced knowledgeable techs. They were so nice and real about our issue. I think this company may be the one. Reasonable price as well!
Stephanie da Silva
00:30 13 May 25
Excellent experience!! Grant is amazing 🤩!! He did a fantastic job in the garage and in the bathroom!!👌 I will recommend him to anyone who needs a good, caring, responsable, sweet, happy plumber !! 👏
Haydee Garbero
18:54 06 May 25
From start to finish this company is very professional; sent an email and text notifying me of the appointment. Received a text with who the plumber was along with picture. Called and asked if I was available early when the previous job finished early.Joseph came out, provided a quote for my shower drain, and explained different pricing options. He cleared the clog, hydro-jetted the pipes, and cleaned up. He even checked my water heater and the water pressure coming into the house. He was super courteous, asked if he could look at different faucets and if he could open doors or use the water spigots.
Kristi Nystrom
20:45 05 May 25
Grant did an amazing job not only fixing my collapsed sink, but diagnosing additional problems this old house needed fixing! I really appreciated his help and professionalism, and if I ever need plumbing help, he's the one I'll call!
Laura Cendejas
06:16 05 May 25
very professional agents very polite and careful of my home and belongings fabulous job and I will recommend your company to all my friends thank you Maureen Wild
maureen wild
22:09 02 May 25
Joe and Kevin did a great job installing new valves in my laundry room. They left the place immaculate and they were extremely courteous and efficient. I wouldn’t hesitate to use this company again at all.
Patricia Hoffman
23:20 26 Apr 25
Grant from Core Plumbing was an amazing help. He led me through the entire process of getting my water heater replaced. Core Plumbing did a GREAT job!!!Don is an excellent installer. He was extremely professional and an expert in his field.
Fran George
18:30 25 Apr 25
Michael and Josh were very professional and they diagnosed some things that were wrong with our plumbing system. We will request them for any future visits.
Patricia Sellers
18:38 22 Apr 25
Excellent attention to details. Prompt and good in communication. My task was pricey but they were clear about what needs to be done.
Ravi Iyer
23:19 21 Apr 25
Core Plumbing's Team is A+++. Meticulous, competent and fairly priced. Use Core Plumbing when you want a hero not a zero.
Mike Chase
19:04 20 Apr 25
Our Seismic gas shut-off valve installation Approach
Earthquakes are a reality in San Diego, CA, and even minor tremors can damage gas lines, creating a serious safety hazard. A properly installed seismic gas shut-off valve can prevent gas leaks, fires, and explosions, protecting your home and family.
Our professional installation process includes:
System Assessment – We evaluate your home’s gas lines and appliances to determine the ideal valve type and placement.
Product Selection – We explain your options and recommend a seismic gas shut-off valve that meets local codes and your home’s needs.
Preparation & Safety – We safely shut off the gas supply and prepare the system for installation.
Professional Installation – Our skilled plumbers install the valve precisely, ensuring proper connections and compliance with all safety regulations.
Calibration & Testing – The valve is tested to ensure it activates correctly during seismic activity.
Final Walkthrough – We explain how the system works, provide safety tips, and answer any questions.
Why Choose Us
Expert Journeyman Plumbers
Skilled, licensed plumbers with hands-on experience to handle jobs correctly.
Flat Rate Menu Pricing
Clear, upfront pricing with no surprises. Know the cost before work begins.
High-Quality Plumbing Provider
Dependable plumbing solutions using proven methods and quality materials.
Top-Rated Plumbing Services in San Diego
Trusted by local customers for reliable service and excellent results across San Diego.
When is it Time for a Seismic gas shut-off valve installation?
In earthquake-prone areas like San Diego, CA, gas leaks caused by seismic activity are a serious safety concern. A sudden tremor can damage gas lines, creating the risk of fire, explosion, or property damage. That’s why installing a seismic gas shut-off valve is a smart, proactive step for homeowners. At Core Plumbing, we provide professional seismic gas shut-off valve installation services, helping you protect your home and family before disaster strikes.
It may be time to install a seismic gas shut-off valve if you notice any of the following:
You live in an earthquake-prone area, such as Southern California
Your home has older gas lines or appliances that may be more susceptible to damage
You want added protection for your family and property during seismic events
You lack an automatic gas shut-off system for emergency situations
You’ve experienced minor gas leaks in the past, even without major earthquakes
You want peace of mind while away from home, knowing your system is safeguarded
What's Next
Get A Free Quote
When you call, we answer the phone! We get the information about your project and provide a fast and accurate quote.
Get Scheduled
We work around your schedule! After choosing your services, you tell us what is best for you.
Wait & Relax
We communicate with you every step of the way and we do what we say we will do.
Why is it Important to Hire a Professional?
Installing a seismic gas shut-off valve is one of the most effective ways to protect your home and family, but it’s not a DIY project. At Core Plumbing, we provide professional seismic gas shut-off valve installation services, ensuring your system is installed safely, correctly, and reliably.
Hiring a professional is critical for several reasons:
Safety First – Gas line work carries serious risks; improper installation can create leaks or hazards.
Code Compliance – Professionals ensure your installation meets local regulations and safety standards.
Proper Valve Placement – Correct positioning is essential for the valve to function effectively during seismic activity.
System Evaluation – Experts assess your existing gas lines, appliances, and connections to recommend the best solution.
Accurate Calibration – Professionals test and calibrate the valve to ensure it triggers correctly during an earthquake.
Peace of Mind – Knowing the installation is done right reduces risk and provides long-term protection for your home and family.
Our Service Areas
- 4S Ranch
- Alpine
- Bonita
- Bonsall
- Carlsbad
- Carmel Valley
- Chula Vista
- Clairemont
- College Area
- Coronado
- Del Mar
- El Cajon
- Encinitas
- Escondido
- Fallbrook
- Jamul
- Kearny Mesa
- La Jolla
- La Mesa
- Mira Mesa
- Mission Beach
- Mission Valley
- National City
- Oceanside
- Pacific Beach
- Point Loma
- Poway
- Ramona
- Rancho Bernardo
- Rancho Peñasquitos
- Rancho Santa Fe
- San Diego
- San Marcos
- Santee
- Scripps Ranch
- Solana Beach
- Sorrento Valley
- Spring Valley
- Tierra Santa
- Vista