Gas Line Repair in Baltimore, MD
Speedy Plumbing Baltimore tests and repairs leaking, corroded and damaged natural gas piping downstream of the BGE meter — the pipe you own — across Baltimore City and nearby Baltimore County, 24 hours a day. Call (716) 328-9097 for a licensed, insured Maryland gas fitter who pressure-tests the system, finds the leak and repairs it, with an upfront price before work starts.
BGE makes the property safe and shuts the gas off. We repair the pipe after the meter.
Smell gas right now? Leave the building, go at least 100 feet away, then call 911 or BGE at 877.778.7798 from where you are standing. BGE says: don't turn anything off, don't open a window, don't try to find the leak, and don't use matches or turn anything on or off, even a cell phone. BGE answers emergency gas calls 24 hours a day and charges nothing to investigate. Call us after the property has been made safe.
- Open 24 hours a day, 7 days a week, holidays included
- Licensed and insured in Maryland
- Upfront price you approve before any work starts
- Same rate at night, on weekends and on holidays
Who owns the gas line, BGE or you?
BGE owns every pipe up to and including the gas meter. You own and maintain all above-ground and buried pipe after the meter, and your gas appliances. That is BGE's own wording, and it decides who pays for a repair.
BGE answers emergency gas calls around the clock, dispatches a technician on a reported odor, inspects, makes the area safe and repairs BGE's equipment at no charge. But when BGE's assessment finds the leak is on customer-owned equipment — piping and gas-fed appliances after the meter — BGE may interrupt the gas supply to make the property safe, and the inspection and repair become yours. That is the point at which this page applies.
| Part of the system | Whose it is | Who repairs it |
|---|---|---|
| Gas main in the street | BGE | BGE or its authorized contractor |
| Service line from the main to the meter | BGE | BGE or its authorized contractor, at no charge |
| The gas meter and its valves | BGE | BGE. Customers are told not to operate valves on the meter |
| House piping after the meter, above ground and buried | You | A licensed gas fitter. This is our work |
| Gas appliances and their connectors | You | A licensed gas fitter, or an HVACR licensee on an existing appliance with manufacturer training |
Sources: BGE: Equipment Responsibility; BGE: Gas Leak Repairs; Baltimore County Plumbing and Gasfitting Code § 101.2.6, which places the utility service, main shutoff valve, regulator and meter outside the code's scope; Md. Code, Bus. Occ. & Prof. § 12–301(i).
BGE also asks customers to keep three feet of clear space around every meter, to take care working or moving vehicles near meters and piping, and to call 1-800-685-0123 to report suspected damage or signs of deterioration.
What are the signs of a gas leak?
Smell, look and listen — BGE's own three-part test. Natural gas is colorless and odorless as delivered; BGE adds mercaptan to give it a rotten-egg smell. Not everyone can rely on their sense of smell, which is why the other two signs matter.
- Smell. Mercaptan gives natural gas a distinctive smell similar to rotten eggs.
- Look. Dead vegetation in an otherwise thriving area, bubbling ground water, or blowing dust from a hole in the ground. BGE's brochure adds fire coming from the ground and water being blown into the air.
- Listen. A blowing, hissing or roaring sound.
Two things BGE says that cut against common assumptions: leaks can be reported anonymously, and a home that uses no gas at all can still have a gas leak from outdoors. BGE suggests a certified methane detector near ceilings and gas appliances, and notes that this is not the same device as a carbon monoxide detector.
A rotten-egg smell that comes back after drain traps are refilled is a different problem. Sewer gas is hydrogen sulfide from the drain system, not natural gas; the guide to cracked cast iron drains covers how to tell them apart.
Why gas lines fail in Baltimore houses
Corrosion of buried steel and mechanical damage from digging are the two that account for most of it. BGE tells customers plainly that piping after the meter is theirs to maintain, and that "if such piping is not maintained, it may corrode and become a potential source for a leak."
- Corrosion on a buried line. The fuel gas code says zinc coating "shall not be deemed adequate protection for underground gas piping." Buried steel needs corrosion-resistant material, a factory-applied insulating coating, or monitored cathodic protection. Older buried runs frequently have none of the three.
- Excavation damage. BGE reports that its natural gas pipelines experience an excavation damage on average every other day, and that excavation damage is the leading cause nationwide of pipeline incidents serious enough to require federal reporting.
- Joints, fittings and connectors. The code limits which fittings may be concealed, caps an appliance connector at 6 feet with one per appliance, and bars connectors from running through walls, floors, partitions or ceilings.
- Water in the system. BGE says flooding can push water into the gas system in low-lying parts of the region, that rushing water erodes ground around buried utilities and can break mains, and that gas service cannot be restored where water has entered a customer's piping and appliances.
Street work you may have seen in the neighborhood is a separate programme: BGE is replacing aging cast iron and steel mains, which it calls "brittle" and "prone to dangerous corrosion and failure," with modern plastic. That is BGE's side of the meter, not yours.
How the repair is done
The system is pressure-tested, the leak is located with an approved detector or a non-corrosive leak detection fluid, the affected section is repaired or replaced, and the system is retested. The code requires that last step: where leakage or other defects are found, the affected portion "shall be repaired or replaced and retested."
- Confirm the property is safe. If gas is still present, BGE comes first. We work after the area has been made safe.
- Isolate and test. A pressure test of at least 3 psig, held at least 10 minutes in a single-family dwelling, shows whether the system holds.
- Locate the leak. With an approved gas detector or a leak detection fluid labelled non-corrosive. Household soap solutions are not a substitute — CSST maker Gastite warns they contain chlorides that attack the tubing.
- Repair or replace the section. Black steel pipe, or CSST to the ANSI LC 1 / CSA 6.26 standard. Cast iron and PVC are prohibited for fuel gas.
- Bond CSST where it is used. The code requires a bonding jumper of at least 6 AWG copper, no longer than 75 feet, to a listed clamp. Gastite's own instructions tie this to lightning-induced arcing, and Maryland is a high-lightning state.
- Retest and restore service. BGE relights appliances after a shutoff on its side.
Buried nonmetallic pipe gets an 18 AWG yellow tracer wire so the line can be found later, and is laid at the code's minimum depth. That wire is what keeps the next person with a shovel from repeating the damage.
Before anyone digs: Miss Utility
Maryland law requires a Miss Utility ticket before excavation, and work may start no sooner than 3 business days after the ticket is initiated. The ticket stays valid for 12 business days. Anyone digging within 18 inches of a marked line must do it by hand.
If gas escapes during digging, the law says to call 911. Penalties run to $2,000, rising to $4,000 for a repeat, and a court may award up to ten times the cost of repair. This applies to a homeowner planting a tree as much as to a contractor.
Licensing and permits on each side of the city line
Maryland requires a licence to work on gas piping, and Baltimore County runs an entirely separate system from the State. The State Board's own page says licences are required statewide "except for Baltimore County and the areas served by the Washington Suburban Sanitary Committee," which "issue their own licenses and have their own plumbing code."
- Maryland. A Board licence is required before an individual may provide natural gas services, and a business needs a master natural gas fitter who actively directs, controls and is responsible for the work. The statute's exception for work in your own residence covers plumbing services only — it does not extend to gas.
- Baltimore City. The City registers Master and Journeyman Gas Fitters and issues a gas permit only to a City-licensed master plumber, master gas fitter or on-site utility contractor. The permit fee for gas piping in a 1- or 2-family home is $25. Emergency work may begin before the permit is issued. The model code's exemptions for gas permits are marked "Not Adopted" in the City.
- Baltimore County. Only a County-licensed plumbing or gasfitting contractor can apply for a gasfitting permit. All gasfitting work needs a permit and inspection, except stopping a leak where no material is replaced. The County tests at 20 psi.
- Water heaters are the exception. Maryland's definition of natural gas services specifically excludes water heaters, relief valves and expansion tanks where they connect to the plumbing water supply and drainage system. Water heater repair therefore sits under plumbing services — though the gas valve, thermocouple, pilot and burner on a gas unit are gas work, which we hold the licence for.
13 of the Baltimore ZIP codes we serve fall wholly or partly in Baltimore County, so which rule applies depends on your address. The directory of Baltimore ZIP codes we cover lists the jurisdiction for every ZIP.
What gas line repair costs
Fixr (Aug 2025) puts gas line repair at $150 to $700, about $400 on average. Access drives the price far more than the size of the leak does.
| Repair or charge | Typical cost | What the range covers | Reported by |
|---|---|---|---|
| Gas line repair | $150 to $700 | Repairing a section of damaged gas pipe. Fixr says the low end is $100 (cleaning rust off an accessible section) and the high end $2,300 (a leak in an underground pipe needing extensive excavation). Angi's separate gas line repair page reports a much higher range ($272 to $936, averaging $598). | Fixr (Aug 2025) US national |
| Gas leak repair | $150 to $800 | Fixing a leak in a gas line. Fixr says an inaccessible or buried leak adds about $1,000 to $1,500 for excavation, and that the damaged section of line is replaced entirely. | Fixr (Aug 2025) US national |
| Leak at an appliance junction | $120 to $250 | A leak at an accessible junction, for example behind a stove: a straightforward remove-and-replace repair with no wall opening or excavation. | HomeAdvisor (Jun 2026) US national |
| Leak in a wall or crawl space | $270 to $760 | A hidden leak behind drywall or in a crawl space, which is harder to locate and reach. Angi's version of the same figure says the range includes drywall repair costs. | HomeAdvisor (Jun 2026) US national |
| Buried line: excavation added | $1,500 to $5,000 | The amount excavation and landscaping add when the leak is in a buried line. This is an add-on to the repair itself, not a standalone total. Angi gives the same $1,500 to $5,000 and says it includes excavation and landscaping; HomeGuide reports $1,500 to $3,000+ for the same work. | HomeAdvisor (Jun 2026) US national |
| Pressure test | $75 to $150 | Standard pressure test used to find leaks by watching for a pressure drop; often required by code after a repair or install. Angi says some local codes require a 12-hour or 24-hour test costing as much as $500. Fixr gives a narrower $75 to $100. No publisher priced 'gas leak detection' as a separate service; the pressure test is how detection is billed. | Angi (Mar 2026) US national |
| Shut-off valve replacement | $300 to $600 | Replacing a leaky, broken or faulty gas shut-off valve. Fixr says the valve alone is $150 to $350 and that shut-off valves are almost always replaced rather than repaired. Angi gives the same $300 to $600; HomeGuide reports $250 to $750. | Fixr (Aug 2025) US national |
Market ranges, not quotes from Speedy Plumbing Baltimore. Sources: Fixr: How much does it cost to repair a gas line? (updated Aug 2025); HomeAdvisor: How Much Does Gas Line Installation Cost in 2026? (updated Jun 2026); Angi: How Much Do Gas Line Installation or Repairs Cost? [2026 Data] (updated Mar 2026). Retrieved 2026-09-22.
Running a new line, replacing a corroded one and whole-house figures are broken down in our guide to what gas line work costs. Speedy Plumbing Baltimore gives you an upfront price after testing, before any work begins. Fixr (Aug 2025) notes that most companies add $200 to $300 per visit for emergency same-day service; we do not.
Gas line questions
What should I do if I smell gas in my house?
Leave immediately, go at least 100 feet away, and call 911 or BGE at 877.778.7798 from there. BGE says not to turn anything off, not to open a window and not to try to find the leak, and not to use matches or turn anything on or off, even a cell phone. Do not go back inside until authorities say it is safe.
Does BGE or the homeowner own the gas line?
BGE owns all pipes, underground and above ground, up to and including the gas meter. Customers own and maintain all above-ground and buried pipe after the meter, plus their gas appliances. BGE investigates a reported gas odor free of charge and repairs its own equipment, but if the leak is on customer-owned piping, the inspection and repair are the customer’s responsibility.
How much does gas line repair cost?
Fixr (Aug 2025) puts gas line repair at $150 to $700, with $400 as the average. Where the leak sits drives the price: $120 to $250 at an appliance junction, $270 to $760 inside a wall or crawl space, and $1,500 to $5,000 added for excavation on a buried line. These are national market ranges, not our quotes.
Who is licensed to repair a gas line in Maryland?
Maryland requires a State Board of Plumbing licence to provide natural gas services, and a business must have a master natural gas fitter who actively directs, controls and is responsible for the work. The statute’s exception for work you do in your own residence covers plumbing services only and does not extend to gas. Baltimore County is outside the State system and licenses its own plumbing and gasfitting contractors.
Do I need a permit to repair a gas line in Baltimore?
In Baltimore City a gas permit is issued only to a City-licensed master plumber, master gas fitter or on-site utility contractor, and the fee for gas piping in a 1- or 2-family home is $25. Emergency work may begin before the permit is issued. In Baltimore County all gasfitting work needs a permit and inspection, except stopping a leak where no material is replaced.
Why does a buried gas line cost so much more to repair?
Excavation and landscaping add $1,500 to $5,000 on top of the repair itself. Maryland law also requires a Miss Utility ticket before digging, with work starting no sooner than 3 business days after the ticket is initiated, and anyone digging within 18 inches of a marked line must do it by hand.
Can a water heater be worked on without a gas licence?
Maryland’s definition of natural gas services specifically excludes water heaters, relief valves and expansion tanks where they connect to the plumbing water supply and drainage system, so they fall under plumbing services rather than gas services. Gas piping itself, and gas utilization equipment, sit inside both definitions.
Gas line leaking or shut off?
Call Speedy Plumbing Baltimore once BGE has made the property safe. You approve the price before any pipe is opened.
Call (716) 328-9097