
Gas Leak Detection
Licensed gas line detection, repair, and seismic valve installation for homes and businesses
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Gas Leak Detection & Repair
A gas leak is a serious safety emergency. Our licensed plumbers find and repair gas leaks, and we also install seismic shut-off valves and run new gas lines for appliances. Gas leaks are emergencies, and we take gas calls 24/7. We serve Ontario, Pomona, Corona, Upland, Fontana, Rancho Cucamonga, West Covina, and Chino.
- ✓Gas line repair and re-piping
- ✓Seismic shut-off valve installation
- ✓Appliance gas line connections (BBQ, stove, dryer, fire pit)
- ✓Gas line installation for new appliances
- ✓24/7 emergency service
- ✓Free on-site estimates

What We Cover
Services We Provide
Leak Location
We find where the gas is leaking in your home's piping system.
Line Repair & Repiping
Once located, we repair or replace the damaged section of gas line to restore safe operation to your home.
Seismic Shut-Off Valves
We install seismic gas shut-off valves, which shut the gas off automatically when they sense a strong earthquake.
How We Work
Why Choose Regal?
Free Camera After We Clear It
On a drain call we cable the line first, then we typically run a camera through it free of charge as a courtesy, so you can see why it backed up.
Shielded Bands, Not Rubber
On sewer repairs we typically use a heavy-duty Husky band with a full metal shield, not the rubber Fernco band held on by two hose clamps.
30 Minutes to an Hour on Emergencies
A real person answers around the clock, and we can typically reach an emergency call within 30 minutes to an hour.
1-Year Warranty on Labor
Our labor comes with a 1-year warranty. Anything we note on your invoice as not covered by warranty isn't included.
Explore
Other Services We Offer
Emergency Plumbing
Rapid-response emergency plumbing for Ontario, CA and surrounding cities. We’re on call around the clock.
Learn More →Drain Cleaning
Professional clearing of kitchen, bathroom, and main sewer line blockages.
Learn More →Sewer Line Repair
Camera inspection, trenchless repair, and full sewer line replacement.
Learn More →Water Heater Services
Installation and repair of tank, tankless, and heat pump water heaters.
Learn More →Slab Leak Detection
We find slab leaks with acoustic equipment, by pressurizing the line and with thermal equipment, then reroute most of them through the attic.
Learn More →Hydrojetting
High-pressure water jetting to scour pipe walls and restore full flow.
Learn More →Water Filtration
Whole-home water softeners and filtration systems installed.
Learn More →Pipe Repair
Expert pipe repair and replacement for copper, PVC, and galvanized systems.
Learn More →Commercial Plumbing
Commercial plumbing service for businesses.
Learn More →Service Coverage
Cities We Serve
We serve these cities from our shop in Ontario.
Real Photos
From Recent Jobs





Emergency Protocol
What To Do If You Smell Gas
Leave the house now. From outside, call 911 or SoCalGas at 1-800-427-2200. Then call us at (909) 600-4561.
Gas Line Services
Gas Line Services for Homeowners
Seismic shut-off valves shut the gas off automatically when they sense a strong earthquake, and we constantly have tremors and earthquakes here. We install them in older homes in Ontario, Pomona, Corona, and Upland.
New gas line installations: whether you're adding a gas BBQ grill, outdoor fire pit, gas dryer, or upgrading to a gas stove, we run the line and make the connections. We install gas lines throughout Fontana, Rancho Cucamonga, West Covina, and Chino.
Gas leaks are emergencies and we treat them with the urgency they deserve. Our team is available 24/7.
KNOW THE SIGNS
Warning Signs of a Gas Leak in Your Home
Gas leaks don't always announce themselves with an obvious smell. Knowing what to look for can save lives. The most recognized warning sign is the rotten egg or sulfur odor that utility companies add to natural gas, but it's not the only indicator. A hissing or whistling sound near gas lines, meters, or appliances often signals a leak.
An unexplained spike in your gas bill sometimes reveals a slow leak that's been going unnoticed for weeks. And visible damage or corrosion on gas line connections, especially in older homes, is a red flag that shouldn't be ignored. If you notice a high gas bill or damaged connections, professional gas leak detection in Ontario, CA is just a phone call away.
SERVICE AREA
Gas Leak Detection Across Our Service Area
Gas leaks don't wait for business hours, and neither do we. Regal Plumbing responds to gas calls as emergencies 24 hours a day, 7 days a week across our entire service area. Whether you're in Ontario, Rancho Cucamonga, or Fontana, our team is ready to respond with the equipment and expertise to handle any gas emergency.
We provide gas leak detection in Fontana, CA as well as Pomona, Upland, Chino, Corona, and West Covina. From seismic valve installations to full gas line replacements, we bring the same licensed, safety-first approach to every job. If you suspect a gas leak or need gas line service, contact us today or call (909) 600-4561.
Common Questions
Gas Leak Detection FAQs
Ask about our current specials when you call.
Gas Leak? Safety First. Then Call Us
Gas leak repair, new gas lines and seismic shut-off valves. Available 24/7.
(909) 600-4561Call Now