A handheld electronic sniffer that reacts to natural gas and propane in the air. We use it to sweep the meter, main line, and appliance connections to narrow down the leak location.
Gas leak detection charleston SC done right the first time
When you smell gas in your Charleston home, every minute matters.
Serving charleston and nearby areas.
How big is the gas leak job?
Section repair
A run of pipe behind a wall or in a crawlspace needs a section replaced.
- 1. Single fitting One accessible fitting or valve is leaking and can be repaired on the spot.
- 2. Section repair A run of pipe behind a wall or in a crawlspace needs a section replaced.
- 3. System reroute The line under a slab or in a wall is failing and needs to be rerouted.
Drag the needle to compareTouch and drag the needle
- 30Services from one local team
- 20Areas served around charleston
- Pressure firstWe isolate and test before we open anything
- Camera checkWe look inside walls before we cut
What is included in gas leak detection
Our gas leak detection charleston SC service covers the full diagnostic process from shut-off to final pressure test.
Work order
Gas Leak Detection- Full system inspection: We check the meter, main line, and every appliance connection with a combustible gas detector. This takes 10 to 15 minutes and tells us whether the leak is indoors, outdoors, or both. We also note any visible corrosion or damage.
- Pressure testing: We isolate sections of the gas system and pressurize each one with air or nitrogen while watching a pressure gauge for 15 to 30 minutes. This step tells us exactly which section of pipe is failing so we can focus the search.
- Leak isolation: Using a leak detection camera and soap solution, we check every joint, valve, and fitting in the faulty section. The camera lets us see inside walls and under slabs without tearing anything out. Soap bubbles confirm the exact spot.
- Repair and retest: We repair the leak using copper pipe, brass fittings, and approved materials, then re-pressurize the system and watch the gauge for 30 minutes. If pressure holds, we turn the gas back on and test each appliance. If it does not, we keep looking.
- Written summary: You get a written record of what we found, what we repaired, and the pressure test results. This is useful for insurance claims, real estate transactions, and your own records. We also note any areas to monitor going forward.
What the first visit covers
First visit
The first call or visit covers what happened, what the job involves and what happens next.
Gas leak detection for your home
We find and fix gas leaks in houses across Charleston County.
Kitchen gas smell
Leaks at the range connection or nearby fittings
Water heater leak
Gas valve or thermocouple leaking at the heater
Crawlspace corrosion
Corroded fittings on older copper gas lines
Slab leak
Gas leaking under a concrete slab foundation
Gas leak detection for your business
We work with restaurants, hotels, and commercial properties across Charleston.
Restaurant kitchens
Gas leaks at ranges, fryers, and prep area lines
Hotels and inns
Gas leaks in boiler rooms and guest kitchen areas
Retail and office
Gas leaks at HVAC units and water heaters
What gas leak detection charleston SC actually involves
A gas leak is not a wait-and-see problem. We find the source, repair the line, and pressure-test the system before we leave. You get a safe system and a written record of the work.
Gas leak detection charleston SC is a diagnostic service that locates escaping natural gas or propane in your home's gas lines, appliances, and connections before it becomes a health or fire hazard. We start by shutting off the supply, then pressurize the system and watch a pressure gauge for drops that tell us there is a leak. From there we use a leak detection camera, electronic combustible gas detectors, and soap solution on every joint and fitting to isolate the exact source. Once we find it, we repair the line, retest, and confirm the system holds pressure before we turn the gas back on.
Charleston's older housing stock makes this service essential. Homes in Harleston Village and Cannonborough-Elliotborough often have original copper pipe and brass fittings that have been sitting in humid crawlspaces for decades. Salt air near Folly Beach and James Island accelerates corrosion on outdoor gas lines and meter connections. If you have a gas water heater, furnace, or range that is not burning clean, or you catch that rotten-egg smell near your meter, call us for gas leak detection near me charleston SC and we will get a technician to your door the same day.
- What it is
- Finding and repairing escaping gas in your lines
- When it helps
- You smell gas or your CO detector goes off
- What you get
- A repaired line and a pressure test report
How our gas leak detection process works
From the moment you call to the moment your gas is back on, here is exactly what happens when you hire us for gas leak detection…
Tools and methods we use for gas leak detection
Each method answers a different question. Together they leave very little to guess.
We connect a calibrated pressure gauge to an isolated section of gas line and watch it for 15 to 30 minutes. A drop in pressure confirms a leak in that section.
A borescope-style camera that lets us see inside walls, under slabs, and in crawlspaces without tearing anything out. We use it to visually confirm corrosion or damage at a fitting.
A simple but reliable method. We brush soapy water on a joint or fitting and watch for bubbles. If bubbles form, gas is escaping. This confirms the exact leak point.
For repairs. We cut out the damaged section of copper pipe and replace it with new pipe and brass fittings. We use a tubing cutter for clean, square cuts that solder properly.
When to call for gas leak detection
You smell rotten eggs near your gas meter or in your kitchen and cannot find the source.
Leave the building, call 911, then call us.
HomesYour carbon monoxide detector goes off and you suspect a gas appliance is not burning clean.
We inspect the gas connection, the burner, and the flue on the appliance.
HomesYou are buying or selling a home in Charleston and the inspection report flags a gas leak.
We provide gas leak inspection services charleston South Carolina for real estate transactions.
Homes and businessesYou are adding a gas range, generator, or outdoor grill and need a new gas line run.
We run new gas lines in copper or CSST, size the line for the appliance's demand, pull permits, and pressure-test the entire…
Homes and businesses
How gas leak detection works in Charleston
Charleston's climate and building stock create specific gas leak scenarios. The humidity here is hard on copper pipe and brass fittings, especially in crawlspaces and outdoor runs.
Harleston Village
Many homes here have original copper gas lines in humid crawlspaces. Corroded brass fittings are the most common leak source we find.
West Ashley
Mid-century ranches with gas lines under the slab. Slab leaks are common, and we use cameras and pressure testing to isolate them without breaking concrete.
Folly Beach
Salt air corrodes outdoor gas lines and meter connections faster here than anywhere else in Charleston County. We check these connections on every visit.
- Harleston Village
- West Ashley
- Folly Beach
- Daniel Island
- French Quarter
From problem to finished result.
Slide to compare the photo with an illustrative inspection view. It is generated from the photo, not a measurement.
PhotoCorroded fitting in Harleston Village crawlspace
Before: A homeowner smelled gas near the kitchen and called us. We shut off the gas, pressure-tested the system, and found a drop in the kitchen run. A leak detection camera showed a corroded brass fitting in the crawlspace, covered in green oxidation. The fitting was releasing gas slowly for months.
After: We replaced the fitting with new brass, soldered the joint, and pressure-tested the line for 30 minutes. The gauge held steady. We turned the gas back on, relit the pilot lights, and tested the range and water heater. Total time on-site was about two hours.
Slab leak in West Ashley ranch home
Before: A family in West Ashley had a gas smell in their hallway and a carbon monoxide detector that kept going off. Two other plumbers told them they needed a full repipe. We isolated the leak with pressure testing and found a single damaged section of copper pipe under the slab.
After: We rerouted the gas line through the attic instead of breaking up the slab, which saved the homeowner thousands in concrete and flooring repair. The new line was pressure-tested and passed inspection. The gas smell was gone, and the CO detector stayed quiet.
Commercial kitchen leak in French Quarter
Before: A restaurant owner in the French Quarter smelled gas in the prep area but could not find the source. Two other plumbers had checked the visible connections and found nothing. The smell was getting worse, and the owner was worried about having to close.
After: We brought a leak detection camera and found a pinhole leak behind a wall in the prep area. We repaired the copper pipe, pressure-tested the line, and completed the work after hours so the restaurant did not lose a day of business. The system passed inspection the following week.
Gas leak problems we solve in Charleston
Gas leaks show up in different ways depending on the age and construction of your home.
Corroded brass fittings in older homes
Fittings that have been in a humid crawlspace for 30 years can develop pinhole leaks that release gas slowly, causing headaches and nausea over time.
Gas smell near the water heater
A leaking gas valve or thermocouple on a water heater can release gas every time the burner fires, creating a fire hazard and triggering carbon monoxide…
Gas leak under a slab foundation
A slab leak can release gas into your home through cracks in the concrete, and it is one of the hardest leaks to find without the…
Damaged outdoor gas line after a storm
Falling limbs and shifting soil after a storm can crack or disconnect an outdoor gas line, creating a leak near your meter or grill connection.
Why Charleston homeowners call us first
A gas leak is not a wait-and-see problem. Here is what you get when you call us for gas leak detection charleston SC.
Same-day response
We know that a gas smell is not something you can ignore until next week.
Pinpoint accuracy
We do not guess.
Code-correct repairs
Every repair we make follows the Uniform Plumbing Code and International Plumbing Code, and we pull permits when the scope requires it.
Full-system testing
Finding one leak does not mean it is the only one.
What you receive
Clear records you can keep and share.
Written findings
A summary of what we found and where
Pressure test results
Gauge readings before and after repair
Repair record
What we replaced and the materials used
16 years of gas line experience in Charleston
Charleston Harborline Plumbing has been serving Charleston County since 2010.
Pressure gauge
We watch it for 15 to 30 minutes. A drop tells us which section is leaking.
Gas detector
We sweep the meter, main line, and appliances. It reacts to trace gas in the air.
Leak camera
We look inside walls and under slabs. It shows corrosion or damage at a fitting.
Is your area covered?
Type your ZIP code or town to check. If you do not see yours, ask us.
charleston ZIP codes
- 29414
- 29424
- 29425
- 29455
- 29405
- 29407
- 29401
- 29403
- 29409
- 29492
- 29412
- 29402
- 29413
- 29417
Towns we serve.
Based in charleston and covering the places around it. Pick one for local details.
What our customers say
I smelled gas near my water heater on a Friday afternoon and called three companies. Charleston Harborline was the only one that could come the same day. The technician found a corroded brass fitting in about 20 minutes, replaced it, and pressure-tested the line. He showed me the gauge and explained everything. I felt safe leaving the house that night.
Our commercial kitchen had a gas smell that two other plumbers could not find. Charleston Harborline brought a leak detection camera and found a pinhole leak behind a wall in the prep area. They repaired it after hours so we did not lose a day of business. The pressure test held, and we passed our inspection the next week.
We had a gas leak under our slab and were told we needed a full repipe. Charleston Harborline isolated the leak, repaired one section of copper pipe, and saved us thousands. They were honest about what needed to be done and what did not. I have already recommended them to two neighbors.
Frequently asked questions about gas leak detection
Short answers for the first few minutes. The team can cover the rest.
Still have a question?
Describe what you are seeing and we will point you to the right next step.
(854) 226-6111If we find the leak and you approve the repair, we often credit the diagnostic fee toward the repair cost. Emergency calls after hours may carry a higher rate. We quote the fee before we dispatch, so you know what you are paying before we arrive.
Leave the building immediately and do not flip any light switches, use your phone, or start a car in the garage. Once you are outside, call 911 and then call us at (854) 226-6111. Do not try to find the leak yourself. If you can safely shut off the gas meter from outside, do it, but only if you can reach it without going back inside. We handle the rest.
Yes. We prioritize emergency gas leak detection charleston SC calls and get a technician to your property the same day in most cases. If you smell gas, call us immediately after you have left the building and contacted 911. We arrive with combustible gas detectors, pressure gauges, and the tools to isolate and repair the leak on the spot.
We shut off the gas supply, isolate sections of the system, and pressurize each one with air or nitrogen while watching a pressure gauge. A pressure drop tells us which section has the leak. Then we use a leak detection camera and soap solution on every joint and fitting to find the exact spot. Once we repair it, we re-pressurize the whole system and confirm it holds before turning the gas back on.
Other services we offer
Other services from the same team.
- Gas Appliance InstallationWe install gas water heaters, furnaces, and stoves. We connect the gas line and test for leaks.
- Water Softener InstallationCharleston water can be hard. We install water softeners to remove minerals.
- Water Softener RepairWe repair softeners that fail to regenerate or leak. We replace resin tanks, control valves, and brine lines.
Call now for gas leak detection charleston SC
(854) 226-6111If you smell gas, do not wait. We provide same-day gas leak detection charleston SC for homes and businesses across Charleston County.
Contact Charleston Harborline Plumbing
Call us at (854) 226-6111 or email info@charlestonharborlineplumbing.com. Our office is located at 123 Meeting Street, Charleston, SC 29401. We look forward to helping you.