Stove and Range Connections
The flex connector and flare fitting at a gas range or cooktop are the most common leak point we repair. We replace worn connectors rather than reusing a line that's been flexed too many times.
Gas Line Repair
Gas Line Repair for East Metro and St. Croix Valley Homes
Residential gas line repair across the East Metro and St. Croix Valley. Twin City Pipeworks fixes leaking or failed gas lines to water heaters, stoves, and dryers. Licensed MN Master Plumber, upfront per-task pricing, 1-year warranty. Book online.
Prefer to call or text? 651-247-4495
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About Twin City Pipeworks
Why Homeowners Trust Us for Gas Line Repair
If you smell gas near an appliance or a connection has failed, you need gas line repair from a licensed plumber, and you need it done right the first time. A gas line is not the place for a patch that holds for a month. Twin City Pipeworks repairs leaking and damaged residential gas lines that serve water heaters, stoves, ranges, dryers, and other home appliances across the east metro and St. Croix Valley, within about 30 minutes of our Lake Elmo base. Owner Dave Kerr is a licensed MN Master Plumber with 20 years in this work, every job is fully insured and backed by our 1-year warranty, and you get upfront, per-task pricing before anything is opened up. If you smell gas right now, leave the house and call your gas utility from outside first, then book online with us for the repair.
Gas line repair covers the parts of the system that carry fuel to a single appliance: the black iron or corrugated stainless supply run, the appliance shutoff valve, the flare and flex connections at the unit, and the fittings in between. What actually drives the work is where the leak is and what the line is made of. A weeping flare fitting at a dryer is a different job than a corroded section of old black iron behind a water heater. We test the connection, find the leak, and rebuild the affected section to current MN gas code rather than chasing one joint at a time. Every job is different, and we give you upfront, per-task pricing before we start.
What Gas Line Repair Actually Covers
Gas line repair means isolating the appliance, finding exactly where fuel is escaping, and rebuilding that section so it holds and passes a pressure check. The most common calls we get are a failed connection at the appliance and a leaking fitting on the supply run, not a cracked pipe in the middle of a straight length. We shut the gas off at the appliance valve or the meter, test the line, and repair the actual fault. A worn flare at a stove connector is a connector replacement. A corroded black iron nipple behind a water heater is a fitting replacement. A valve that no longer seats is a shutoff replacement. We don't thread a new connector onto a corroded stub and call it fixed, because that just moves the failure a few inches down the line.
After the repair, we leak-test the connection under pressure before we consider the job done. If the appliance is a water heater and the gas line turns out to be undersized for the unit, that crosses over into water heater work, and we'll tell you so before any work begins. Ready to get it fixed? Book online to get on the schedule.
Signs of a Gas Leak at an Appliance Connection
Most residential gas leaks we find are not in the middle of a pipe. They are at a connection: the flare fitting where a flex connector meets the appliance valve, the threaded joint at a shutoff, or an old connector that has been flexed and reconnected one too many times over the years.
The signs of a leak at an appliance connection are worth knowing
A persistent rotten-egg or sulfur smell near the stove, dryer, or water heater is the obvious one, since utilities add that odorant to gas on purpose. A faint hissing at a fitting, a pilot light that won't stay lit, or higher-than-usual gas bills with no change in use can all point to a slow leak at a connection. Some homeowners notice dead or yellowing plants right next to a buried line.- Rotten-egg or sulfur smell near an appliance, strongest right at the connection.
- A faint hiss at a fitting or valve when the surrounding room is quiet.
- A pilot or burner that won't stay lit on a gas range or older water heater.
- Bubbles when a soapy-water test is brushed over a suspect fitting.
Why Pre-1990s East Metro Gas Lines Need Repair and Upsizing
Here's a pattern we see over and over in the housing stock out here. A lot of the pre-1990s homes across the east metro and St. Croix Valley were plumbed with half-inch black iron gas lines, sized for the appliances a house carried decades ago. That was fine for an old 40,000-BTU water heater and a basic range. It becomes a problem the moment a homeowner swaps in a high-output appliance or a second gas unit gets added downstream of the same undersized run.
An undersized gas line doesn't always leak. More often it starves the appliance: a water heater that can't recover, a range that won't reach full flame, or pressure that drops when two appliances fire at once. When a repair uncovers a line that's too small for what it now feeds, we size and rebuild the run to carry the actual load. For a tankless water heater in particular, that gas line sizing is step one, which is why the gas work and water heater installation so often go together on older homes.
An undersized gas line often shows up as a starved appliance rather than a leak: a water heater that can't keep up or a range that won't reach full flame. We diagnose whether the line itself is the real problem and tell you straight before any work begins.
If you want the companion water-line service, our pipe repair page covers the supply side of older east metro plumbing. Book online and we'll diagnose the gas line before any work begins, or get an instant quote on a common repair task.
Why Twin City Pipeworks
Residential Gas Line Repairs We Handle
We repair the gas lines serving the appliances in your home. Here's where the work lands most often:
Water Heater Gas Lines
The black iron supply and shutoff feeding a gas water heater can corrode or loosen over years of heat cycling. We repair the connection and check that the line is sized for the unit it feeds.
Dryer Hookups
A gas dryer connector behind the appliance gets crimped, kinked, or disconnected during moves. We repair or replace the connector and leak-test it before we leave.
Appliance Shutoff Valves
An appliance shutoff valve that no longer seats or weeps at the stem gets replaced, so you can actually isolate the appliance next time it needs service.
Corroded Black Iron Fittings
Corroded, stripped, or over-tightened threaded fittings on an older black iron run are a frequent failure point. We rebuild the joint to code rather than patch it.
Other Home Appliances
Other home gas appliances, from fireplaces to garage heaters, run off the same connection types. If it feeds a residential appliance, we repair the line that serves it.
Do You Need a Licensed Plumber for Gas Line Work?
Gas line work is one of the clearest cases where a licensed plumber isn't optional, it's the law. Minnesota requires a licensed plumber to repair and connect residential gas lines in most municipalities, and the work has to be permitted and inspected because a bad gas connection is a fire and carbon-monoxide hazard, not just a leak. Owner Dave Kerr is a licensed MN Master Plumber, we pull the permit when the job calls for one, and we leak-test every repair under pressure before we sign off. A DIY gas repair that fails inspection or, worse, leaks, is not a corner worth cutting to save a service visit.
When Gas Line Repair Is the Wrong Call
Here's the honest part most pages leave out: not every gas smell is a line that needs repair, and not every repair call is ours to take. If the odor is coming from inside a gas appliance rather than the line feeding it, a failed burner, a dirty pilot assembly, or a thermocouple on a furnace or range, that's an appliance repair, and an appliance tech or the manufacturer is the right call, not a plumber working the gas line. We'll tell you when the fault is in the appliance and not the line.
We also keep a tight lane. Twin City Pipeworks does residential gas line repair for home appliances. We do not do commercial gas systems, outdoor underground utility-side work, or the kind of large main-run jobs that belong to a different trade. If your situation is outside what we do, we'll say so plainly rather than take the job and figure it out later.
For a repair that is in our lane, book online to get on the schedule, or run a common task through our instant quote tool.
Gas Line Repair Across the East Metro and St. Croix Valley
We repair residential gas lines across the east metro and St. Croix Valley, within about 30 minutes of our Lake Elmo base. That includes Lake Elmo, Oakdale, Woodbury, Stillwater, Maplewood, Hugo, White Bear Lake, and Cottage Grove. All work is by appointment, Monday through Friday, 8 AM to 5 PM. Working the same ground for 20 years means we know what the housing stock hides: half-inch black iron runs in pre-1990s homes, old-style appliance connectors that have been reused too many times, and shutoff valves that seized years ago. We diagnose the fault, repair it to current MN gas code, and leak-test it before we pack up. Every repair carries our 1-year warranty on all work. Browse every community we serve on our service area page, or jump to Stillwater, Woodbury, or Oakdale. Ready to schedule? Book online and pick a time.
Book your repair
Get Your Gas Line Repaired by a Licensed MN Plumber
Twin City Pipeworks repairs the gas lines serving your home's appliances, done by a licensed MN Master Plumber, leak-tested before we leave, and backed by a 1-year warranty on all work. Book online to get on the schedule, or get an instant quote on a common repair task. Prefer to ask a question first? Call or text (651) 247-4495.
Prefer to call or text? 651-247-4495
Two easy ways to get started
- Book online — pick a visit time that works for you, no phone tag.
- Get a repair quote — common repair tasks priced in minutes with our online tool.
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Twin City Pipeworks
Ready to get it fixed right?
Honest, upfront pricing and a 1-year warranty on every job. Book your visit online, or get an instant quote on a common repair.
Prefer to call or text? 651-247-4495
Good to Know
Frequently Asked Questions
Do I need a licensed plumber for gas line work? +
Yes. Minnesota requires a licensed plumber to repair and connect residential gas lines in most municipalities, and the work must be permitted and inspected where applicable. A gas connection that leaks is a fire and carbon-monoxide hazard, which is why the state treats this differently from a DIY plumbing job. Twin City Pipeworks is a licensed MN Master Plumber operation, we pull the permit when the job calls for one, and we leak-test every repair under pressure before we sign off.
What are the signs of a gas leak at an appliance connection? +
The clearest sign is a rotten-egg or sulfur smell near the appliance, since gas utilities add that odorant on purpose so you can detect a leak. Other signs include a faint hissing at a fitting or valve, a pilot light or burner that won't stay lit, unusually high gas bills with no change in use, or bubbles when soapy water is brushed over a suspect connection. If you notice any of these, shut the appliance valve, ventilate the room, and book a repair. If the smell is strong, leave the house and call your gas utility from outside first.
Does gas line repair for a water heater usually mean upsizing the line? +
Often, yes, and it's one of the most common patterns we see on older east metro homes. Many pre-1990s houses were plumbed with half-inch black iron gas lines sized for the appliances of that era. A modern high-efficiency appliance, especially a tankless water heater, can demand far more gas than that line was built to carry, which starves the appliance or drops pressure when two units fire at once. When a repair uncovers an undersized run, we size and rebuild it to carry the actual load. For a tankless unit, gas line sizing is step one, which is why gas work and water heater installation so often go together here.
What kinds of gas line repairs does Twin City Pipeworks handle? +
We repair the gas lines serving residential appliances: water heaters, gas stoves and ranges, gas dryers, fireplaces, garage heaters, and the shutoff valves and connectors that feed them. We fix leaking flare and flex connections, corroded black iron fittings, and failed appliance shutoff valves, and we upsize undersized runs when a repair uncovers one. We do not handle commercial gas systems or large utility-side main work. If your situation falls outside residential gas line repair, we'll tell you plainly and point you in the right direction.
What should I do right now if I smell gas? +
If you smell gas strongly, do not wait on a plumber and do not flip switches or light anything. Leave the house and call your gas utility, Xcel Energy or your local provider, from outside. They will come out and make the system safe at no charge. Once the line is safe, book the repair with us and we'll find the fault, rebuild the affected section to MN gas code, and leak-test it before the appliance goes back into service.