Smell gas or have a concern? Call us during business hours for prompt, licensed gas line service — Mon–Fri, 9am–5pm
📞 240-888-9739
Home Services Gas Line Services

Gas Line Services in
DC & Maryland

Gas line work carries real risk when done incorrectly. DC Metro Plumbing performs licensed, code-compliant gas line installation, repair, and leak detection — with every job pressure-tested before we leave. From a simple appliance hookup to a full gas piping replacement, we do it right the first time.

Licensed DC & MD
Mon–Fri, 9am–5pm
Upfront pricing
Pressure-tested every job
Why this matters

Gas Work Isn't a DIY Project — Here's Why

Gas piping is one of the few home systems where an undetected mistake can have serious consequences. In Washington DC and Maryland, gas line work requires a licensed plumber or gas fitter — and for good reason.

Code compliance is required by law
DC and Maryland require permits and licensed professionals for gas line installation and major repairs. Unpermitted work can create insurance and resale complications, and more importantly — safety hazards.
Leaks aren't always visible or obvious
A minor leak at a joint or connection point may not trigger your nose immediately — but it accumulates. Proper pressure testing and leak detection equipment confirm a system is fully sealed before the gas is back on.
Correct sizing prevents performance problems
Undersized gas lines starve appliances of pressure, causing pilot outages, inefficient combustion, and appliance damage over time. We size every line to the demand of the connected appliances and the existing supply.
Every job is pressure-tested before we leave
We don't consider the job done until we've pressure-tested the line and confirmed zero leaks. You get documented confirmation — not just a handshake.
IMAGE PLACEHOLDER: Technician pressure-testing a gas line at a DC rowhouse — gauges, uniform, professional setup
Photo placeholder
Full-scope gas line services

Every Gas Line Service We Provide in DC & Maryland

From a single appliance connection to complete gas piping replacement — residential and commercial.

Gas Leak Detection
ResidentialCommercial
If you detect the smell of gas, hear a hissing sound near a gas line, or suspect a leak from appliance connections, we locate the source using calibrated leak detection equipment and repair it. Every repair is pressure-tested before gas service is restored.
Schedule service →
Gas Line Repair
ResidentialCode-compliant
Corroded fittings, damaged pipe sections, loose connections, and failed shut-off valves are all common sources of gas line problems in older DC and Maryland homes. We repair or replace the affected section, restore the line, and test the full system before closing out the job.
Schedule service →
Gas Line Replacement
ResidentialCode-compliant
When existing gas piping is too old, undersized, or extensively corroded to repair safely, full replacement is the right solution. We replace old steel or iron pipe with properly sized, code-compliant materials, routed cleanly and pressure-tested before reconnection.
Schedule service →
Stove & Range Gas Hookup
Residential
Switching from electric to gas cooking, or replacing an existing gas range? We run the branch line to your appliance location if one doesn't exist, install the appropriate shut-off valve, make the final connection, and verify the appliance operates safely before finishing.
Schedule service →
Dryer Gas Hookup
Residential
Installing a gas dryer where only electric existed before requires a new gas line branch to the laundry area. We run the supply line, install the shut-off valve, connect the dryer, and confirm proper venting while we're there — gas dryers require correct exhaust venting for safe operation.
Schedule service →
Water Heater Gas Connection
Residential
Water heater replacements require a properly sized gas connection and a working shut-off valve. We handle the gas line side of water heater installations — new connections, line sizing for high-efficiency units, and shut-off valve replacement when the existing valve is aged or corroded.
Schedule service →
Commercial Gas Line Services
CommercialCode-compliant
We serve restaurants, office buildings, multi-unit properties, and commercial kitchens in the DC Metro area. Commercial gas work includes new piping installation, repairs, appliance hookups for commercial cooking equipment, and pre-inspection compliance work.
Schedule service →
Code-Compliant Gas Piping
ResidentialCommercial
Renovations, additions, or appliance upgrades often require new gas piping runs. We design and install gas piping to DC and Maryland code — correct pipe sizing, proper materials, bonding, and placement. We handle permit coordination for applicable jobs.
Schedule service →
Shut-Off Valves & Flexible Connectors
Residential
Aging shut-off valves can seize or develop slow leaks over time. Flexible gas connectors have a recommended service life and should be replaced when corroded, kinked, or past their useful age. We replace valves and connectors as standalone jobs or as part of a larger appliance replacement project.
Schedule service →
Gas safety awareness

Warning Signs That Mean Call a Gas Plumber

Some gas issues announce themselves clearly. Others are easy to miss or dismiss. These are the signs that warrant a professional inspection — don't wait to see if they go away on their own.

Sulfur or Rotten Egg Odor
Natural gas is odorless by nature — utilities add mercaptan specifically so you can detect it. That distinctive rotten egg or sulfur smell is not something to investigate slowly. If it's strong or sudden: leave and call your gas utility's emergency line immediately. If it's faint or intermittent, call us during business hours for an inspection.
Hissing or Whistling Near a Gas Line
A hissing sound near a gas meter, pipe, or appliance connection typically indicates gas escaping under pressure. Even a small hiss near a connection point warrants a professional inspection — the leak can be at a fitting, valve, or connector that looks intact from the outside.
Dead or Dying Vegetation Above Ground
A suspicious dead patch of grass or dying plants above where a buried gas line runs can indicate an underground leak. Gas displaces oxygen in the soil, killing roots from below. This sign is often missed until the odor becomes detectable above grade.
Pilot Light That Won't Stay Lit
A pilot light that repeatedly goes out — especially after you've confirmed the thermocouple is functional — can signal inconsistent gas pressure or a supply issue. An inspection of the supply line and shut-off valve is worthwhile if the problem recurs.
Corroded or Aging Appliance Connections
Flexible gas connectors behind ranges, dryers, and water heaters have a useful service life — typically around 20 years. Corroded, kinked, or brittle connectors are a slow-building risk that doesn't always smell or make noise until a connection fails. If your appliances are old and the connectors have never been replaced, an inspection is reasonable preventive care.
Unexplained Rise in Gas Bills
A significant, sustained increase in your gas bill without a change in usage habits or weather conditions can indicate gas escaping from a supply line before it reaches your appliances. Combined with any other sign on this list, it warrants a professional check.
If You Suspect an Active Gas Leak Right Now
1Leave the building immediately — don't stop to gather belongings
2Do not turn lights, switches, or electronics on or off
3Call Washington Gas / your utility's emergency line from outside the building
4Once the utility has cleared the scene, call us during business hours for licensed leak location and repair
Call for Gas Line Help →

Mon–Fri, 9am–5pm

Why DC Metro Plumbing

Gas Work That's Done Right — Not Just Done

Gas line work is one area where we never cut corners on process. Here's what that looks like in practice.

Licensed in DC and Maryland
All gas work is performed by licensed plumbers who meet the legal requirements for gas line installation and repair in the DC Metro area.
Pressure-tested before we leave
Every gas line repair, installation, or hookup is pressure-tested with calibrated equipment before we restore gas service and close out the job.
Upfront written pricing
We quote the job before we start. No figure is added after the fact. If a site condition changes the scope, we explain it and re-quote before continuing.
Honest assessment — no overselling
If a connector needs replacing but the supply line is fine, we replace the connector. We don't manufacture scope beyond what the job actually requires.
We serve all of DC Metro
Washington DC, Montgomery County, Prince George's County, Silver Spring, Bethesda, Hyattsville, College Park, Rockville, and surrounding areas.
IMAGE PLACEHOLDER: Technician installing gas line for a new gas range — Silver Spring MD kitchen, uniform and tools visible
DC+MD
Licensed and permitted in both jurisdictions for gas work
100%
Of gas jobs pressure-tested before we restore gas service
How we work

What to Expect When You Call Us for Gas Work

A consistent, transparent process — from first call to final pressure test. No surprises.

1
You call or submit a request
Call 240-888-9739 Monday–Friday, 9am–5pm. Describe what you're looking for — repair, installation, or inspection. Having the appliance type, location, and any relevant symptom ready speeds things up.
2
We schedule the visit and confirm the appointment
We give you a realistic appointment window based on current scheduling. Requests submitted online outside business hours are answered the next business day.
3
On-site assessment and upfront quote
We inspect the existing gas supply line, the appliance location, and any relevant fittings or connections. We give you a written price for the work before touching a single fitting. You decide whether to proceed.
4
Licensed, code-compliant work is performed
We complete the gas line repair, installation, or hookup using correct materials and to DC/MD code. Where permits are required, we handle the coordination.
5
Pressure test — then gas is restored
Before we restore gas service and call the job done, we pressure-test the line to confirm zero leaks. You get confirmation that the system is sealed and safe. Only then is the gas turned back on.
IMAGE PLACEHOLDER: Technician completing gas line connection in a DC rowhouse basement — pipe work, professional environment
Photo placeholder
Verified Reviews

What DC & Maryland Clients Say

5.0
Based on 11 Google Reviews · See all reviews on Google →

"We had a faint gas smell near our range for weeks. DC Metro came out, found a loose fitting behind the stove that looked completely fine from the outside, repaired it, and pressure-tested the whole line. The quote was exactly what we paid."

DH
D. Harrison
Washington, DC · Gas Line Repair · March 2026
Verified Google Review

"Professional, explained everything before starting, and the price matched the quote exactly. The gas line for our dryer was installed cleanly and they didn't leave until the pressure test confirmed everything was sealed."

MP
M. Patterson
Silver Spring, MD · Dryer Gas Hookup · February 2026
Verified Google Review

"I manage several properties in Silver Spring and DC Metro is the only gas plumber we use. They work within our tenant scheduling constraints, show up when they say they will, and the work is always done to code."

RL
R. Lewis
Silver Spring, MD · Property Management · January 2026
Verified Google Review
Schedule gas line service

Request Gas Line Service — We'll Call to Confirm

For faster scheduling, calling is always the most direct route. Submit this form for next-day or scheduled service — we'll follow up during business hours.

IMAGE PLACEHOLDER: DC Metro Plumbing van outside a Hyattsville MD home — branded vehicle, professional appearance
Photo placeholder
Licensed DC & MD — all gas work is code-compliant
Upfront written pricing before any work begins
Every job pressure-tested before we leave
Residential and commercial — DC, Montgomery & Prince George's County
Request Gas Line Service
For fastest scheduling, call 240-888-9739 Mon–Fri, 9am–5pm. After-hours requests are answered the next business day.
After-hours submissions answered next business day · All gas work is licensed and pressure-tested
FAQ

Gas Line Questions DC & Maryland Clients Ask

How do I know if I have a gas leak at home?
The most common signs are a sulfur or rotten egg odor, a hissing sound near a gas line or appliance connection, a dead patch of vegetation above a buried gas line, or a pilot light that won't stay lit. If the smell is strong or sudden, leave the building and contact your gas utility's emergency line. For faint or intermittent signs, call us during business hours for an inspection.
Do I need a permit for gas line work in Washington DC?
Yes — gas line installations and major repairs in DC and Maryland require permits and must be performed by a licensed plumber or gas fitter. DC Metro Plumbing handles permit coordination for applicable jobs and ensures all work meets DC and Maryland code requirements before the job is completed.
Can you install a gas line for a new stove or gas dryer?
Yes. We install gas supply lines for ranges, cooktops, dryers, and other appliances. If no gas supply currently exists at the location, we run a new branch line from the nearest appropriate connection point, install a dedicated shut-off valve, and make the final connection to the appliance. All work is pressure-tested before we leave.
What is a gas line pressure test and why does it matter?
A pressure test confirms that a gas line holds pressure without any loss — verifying there are no leaks. We pressurize the line, isolate sections, and monitor the gauge. Any pressure drop indicates a leak that must be located and repaired before gas is restored. We run a pressure test on every gas job — it's not optional.
Can DC Metro Plumbing handle commercial gas line work?
Yes. We serve restaurants, office buildings, and multi-unit properties throughout DC, Montgomery County, and Prince George's County. Commercial gas services include new piping installation, line repairs, appliance hookups for commercial cooking equipment, and code-compliance work ahead of inspections.
How long does a gas line installation or hookup typically take?
A single appliance hookup where a gas supply line already exists at the location typically takes 1–2 hours including the pressure test. Running a new branch line from an existing supply adds time depending on the distance and routing. Full gas line replacements are larger jobs scheduled based on scope. We give you a realistic time estimate when we quote the job.
IMAGE PLACEHOLDER: Completed gas line connection with shut-off valve and flexible connector — clean DC residential work
Photo placeholder
5.0
11 Google Reviews

"Great repair at finding the problem to my water issue and good communication! Would highly recommend."

MG
Matthew Guo
Washington, DC · Water Issue
Verified Google Review
View all 11 reviews ↗
Ready to schedule gas line service?

Call during business hours for the fastest appointment. Mon–Fri, 9am–5pm. All gas work is licensed, permitted where required, and pressure-tested before we leave.

📞 240-888-9739

Gas Line Service in DC & Maryland — Done Right, Pressure-Tested Every Time.

Mon–Fri, 9am–5pm · Licensed DC & MD · Upfront pricing · Code-compliant installation & repair