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Top-Rated Gas piping pros in Ontario - Updated Nov 2026

Avatar for J I G Plumbing
J I G Plumbing
4.9(
98
)
Gas Piping

Serving Ontario, CA and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"What do you do when the gas company turns off your gas due to a leak? You would want a licensed plumbing company that is: quick to respond, has a free estimate, comes out on a Saturday, knowledgeable, on-time, efficient, quality work, courteous, and above all else,...integrity. Jason and his team at J I G Plumbing are all that! We were given an initial estimate, but as the trenching started, he informed us that the repair would not be as extensive as previously thought. He re-calculated the cost, saving us considerable money. Jason and his team patiently answered all our questions and informed us of their progress. Jason also provided photos of damaged areas and the finished repair. The repair was completed professionally and efficiently, and the gas company came to inspect/turn the gas on the same day. We are happy to have J I G Plumbing as our "go-to" for all our plumbing needs in the future!"
Completed Install
Preparing new install
Completed Install
Completed Install
Completed Install

+8

40 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Western Rooter & Plumbing
Western Rooter & Plumbing
4.8(
172
)
Gas Piping

Serving Ontario, CA and surrounding areas

Approved

In business since 1981

Free estimates

Emergency services offered

"Western Rooter to the rescue again! I had a small underground leak which appeared to be due to a bad sprinkler valve. A sprinkler repair company determined that it was not a bad sprinkler valve and thought it was due to a leak in the main water line. Daniel and Alex dug down to find that the leak was coming from a very old (at least 36 years) broken pvc line. After much testing and head scratching to try to figure out where the water was coming from, they decided to "chase the pipe." After much digging, they found that the very old broken pvc pipe was hooked up to a sprinkler valve that was buried 18 inches underground that had not been capped--only turned off. Roots from a nearby tree had opened the valve which caused the leak--crazy! The current sprinkler system has been the same one since we moved into the house in 1988. It took 36 years for the underground leak to occur!"
Ruben installs a new drainage system under a customers home. Working in a crawl space is rough, but we do what is needed.
Backing up? Got roots? Blast those roots out with a Hydro Jetter! We use a wart hog nozzle that combines controlled rotation with a unique 8 jet cutting configuration optimized for removing roots. It’s better with a jetter! Call us! We got this! ??
Sewer Line Camera
No drain clog too big or small, Western Rooter covers them all!
Justin clearing a Kitchen sink back-up after the Memorial holiday.
HALO 5 whole house water filtration system.

+542

Response time12 hrs
Response rate100%
10 neighbors recently requested a quote
Avatar for SoCal Plumbing & Rooter, Inc.
SoCal Plumbing & Rooter, Inc.
4.7(
286
)
Gas Piping

Serving Ontario, CA and surrounding areas

Approved

In business since 2016

Free estimates

Emergency services offered

"I am one that usually does not write reviews,here I go. The technician they sent Paul Muro was on time both days he was here. Paul went over each job I had walked him through and he explained what parts he would be using and how he was going to do the work. I needed 2 showers repaired, 1 with a new fixture and one rebuild work. I had a faucet in the garage that needed replacing. I also had a inch and a quarter copper pipe leak on my pool, underground. One final job was to repair the outside hose bib. Paul did most if not all of the work done. He would have a helper, but this person would be called to another job, this happen twice during the two days of work. Ok I'm done writing my review, I know that it is long, but I could go on and I still couldn't say enough on how good Paul was on my home. Thank you, the only thing that got below A 5 rating was how much money it was costing. Have a good day."
Response time4 hrs
13 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Service Flow Plumbing
Service Flow Plumbing
5.0(
23
)
Gas Piping

Serving Ontario, CA and surrounding areas

Approved

Super Service Award Winner

In business since 2022

Free estimates

Emergency services offered

"Andrew was our plumber and also the owner of Service Flow Plumbing. He is everything you want in a professional tradesmen. He was polite, prompt, respectful of my home, thorough, very efficient, and was very generous with his time answering all my questions and showing me how to fix my next faucet handle. His rates are reasonable especially when you consider the level of attention he gives to your problem. I'm telling my family and friends about him & his company because service like his is unfortunately too rare."
Sewer Main Valve
Sewer Main Valve
Sewer Main Valve
Sewer Main Valve
Sewer Main Valve

+81

Response time8 hrs
Response rate98%
22 neighbors recently requested a quote
Avatar for GG's Plumbing, Inc.
GG's Plumbing, Inc.
5.0(
12
)
Gas Piping

Serving Ontario, CA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"We had a great experience with GG’s Plumbing at our cabin in Lake Arrowhead. We originally hired them to install a whole-house water shut-off system, and the job was done quickly and professionally. While they were there, the team noticed that our pipes weren’t properly insulated — something that can obviously become a real issue in the mountains during winter. What I appreciated most was their approach: they didn’t pressure us at all. They simply explained the risk, gave us the option to fix it now or later, and let us decide. That kind of honesty goes a long way. We chose to go ahead and have the insulation done, and I’m glad we did. Their team was easy to work with, the communication (mostly through text) was fast and clear, and everything was handled smoothly. Reliable, knowledgeable, and straightforward — I would absolutely recommend GG’s Plumbing."
Water repipe
Water repipe
Avatar for PRO FLOW PLUMBING AND ROOTER
PRO FLOW PLUMBING AND ROOTER
5.0(
11
)
Gas Piping

Serving Ontario, CA and surrounding areas

Approved

In business since 2010

Emergency services offered

Warranties offered

"Wanna give a huge shout out to Pro Flow Plumbing for sending there best workers to come and replace my water heater they have the best pricing for quality parts and water heater, love how they are very honest I highly recommend others to give them a call won?t regret that call."
Drain repair
Drain repair
Drain repair
Drain repair
Drain repair

+6

9 neighbors recently requested a quote
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FAQs for gas piping projects in Ontario, CA

Plumbers with proper licensing and credentials install and relocate gas lines. When hiring a professional, verify they have experience with gas systems and all required certifications. Some homeowners choose to work with plumbers specializing in natural gas installations, as they have extensive experience with similar projects and understand the safety requirements.

The timeline for gas line relocation varies based on project complexity, permit processing, and inspection scheduling. The physical labor takes a few hours to one day, depending on the line length. However, the actual installation work represents only part of the overall project timeline. Your contractor should provide a specific timeframe based on your circumstances and local permitting requirements.

Your gas supply must be shut off during the relocation process. This safety measure prevents gas leaks while connections are being modified. Plan for this temporary service interruption by making alternative arrangements for cooking, heating, or other gas-dependent systems in your home. The shut-off generally only lasts for a portion of the work, often a few hours.

Relocating gas lines to connect new appliances is a common reason for this type of project. Whether you're installing a gas stove, fireplace, dryer, or outdoor grill, a professional can determine the best route for extending your existing gas system. The cost will depend on the distance between your current gas line and the new appliance location.

Gas line work is not suitable for DIY projects. Natural gas is highly flammable and potentially lethal if not handled correctly. Gas leaks can be difficult to detect without specialized equipment. Professional plumbers have the proper training, tools, and experience to safely relocate gas lines while ensuring compliance with local building codes and safety standards.

The Ontario, CA homeowners’ guide to gas pipings

From average costs to expert advice, get all the answers you need to get your job done.