Gas Line Installation | Hyattsville, MD | WSSC Licensed

Gas Line Installation in Hyattsville, MD

Gas line work is the one HVAC-adjacent job where cutting corners is not just costly — it is dangerous. An improperly made gas connection can leak, and a gas leak is a fire and explosion hazard as well as a source of carbon monoxide. It is also work that requires a specific license that many contractors do not hold. In Prince George’s County, gas piping is regulated by WSSC Water through a separate gasfitter license, distinct from the state HVAC contractor license. Swellfort holds that credential — WSSC Water gasfitter license #GF-72241 — so our gas-line installations are properly licensed, permitted, pressure-tested, and inspected. If you need a new gas line run, this is work to have done right, by someone licensed to do it.

The License That Actually Matters for Gas Work

Here is the distinction most homeowners do not know: a company can be a fully licensed Maryland HVAC contractor and still not be licensed to run your gas line. In our area, gasfitting falls under WSSC Water’s separate jurisdiction and requires its own gasfitter license. This is not a bureaucratic technicality — it exists because gas work carries real danger, and the license certifies the specific competency to size, run, connect, and test gas piping safely. Before anyone runs a gas line in your home, you should confirm they hold WSSC gasfitter licensure. We do, and we work under it, with the proper permits and inspections that licensure makes possible.

Gas Line Services We Provide

  • New gas line runs for heating equipment — extending gas service to a new furnace, boiler, or a location that did not previously have gas.
  • Gas lines for appliances — running lines for a gas range, cooktop, clothes dryer, water heater, or fireplace.
  • Gas lines for generators — supplying a standby generator, sized for the additional load.
  • Gas line extensions and relocations — extending an existing line to a new location or relocating a line for a remodel.
  • Line upsizing — increasing capacity when adding appliances would exceed the existing line’s ability to supply them all.
  • Leak repair and testing — diagnosing and repairing gas leaks and pressure-testing the system.

Sizing a Gas Line Is Not Guesswork

A gas line has to deliver enough fuel to every appliance on it, at the same time, at the correct pressure — and that is a calculation, not an estimate. Each appliance has a BTU demand, the total load determines the required pipe diameter, and the length of the run and the number of fittings all factor in, because gas pressure drops over distance. Add a generator or a second gas appliance to a line that was sized for one furnace, and you can starve everything on it. We size gas lines properly using the load and the run, so every appliance gets the fuel it needs. Undersized gas piping is a common problem when appliances are added without recalculating the line, and it causes appliances to underperform or fail to fire.

Permitted, Pressure-Tested, and Inspected

Every gas line we install is done to code and documented. We pull the required permit, run and connect the piping to the fuel gas code under our WSSC gasfitter license, and pressure-test the completed line to confirm it holds with no leaks before it is put into service. The work is then inspected. This sequence — permit, licensed installation, pressure test, inspection — is what separates a safe gas installation from a hidden hazard. Unpermitted gas work not only risks safety but routinely surfaces during a home sale, where it can stall the closing until it is corrected and inspected. Doing it right the first time protects both your household and your home’s value.

If You Ever Smell Gas

A quick but important safety note: if you smell gas — the rotten-egg odor added to natural gas — treat it as an emergency. Leave the house immediately, do not operate any electrical switches, appliances, or garage doors (a spark can ignite gas), and once you are safely outside, call 911 and Washington Gas. Do not go back in to investigate. Once the utility or fire department has made the situation safe, we can inspect the system, find the source, and make the licensed repair. This is exactly the kind of hazard that proper, licensed gas-line installation is designed to prevent in the first place.

Frequently Asked Questions

Do I need a special license for gas line work in Prince George’s County?
Yes. In Prince George’s County, gas piping is regulated by WSSC Water through a separate gasfitter license, distinct from the Maryland state HVAC contractor license. This means a company can be a licensed HVAC contractor and still not be licensed to run gas lines. The separate license exists because gas work carries real fire, explosion, and carbon monoxide risks and requires specific certified competency. Swellfort holds WSSC gasfitter license #GF-72241, so our gas-line work is properly licensed, permitted, and inspected. Always confirm a contractor holds gasfitter licensure before allowing gas work in your home.
Can you run a gas line for a new range, dryer, or generator?
Yes. We install new gas lines for a range or cooktop, clothes dryer, water heater, fireplace, and standby generator, as well as for heating equipment like furnaces and boilers. Each of these has a specific BTU demand that must be accounted for when sizing the line, and a generator in particular adds significant load. We size the line for the appliance and the run, pull the required permit, install under our WSSC gasfitter license, and pressure-test the line before it is put into service, so the appliance is supplied safely and correctly.
Why does my new gas appliance need the line resized?
Because a gas line must supply enough fuel to every appliance on it simultaneously, at the correct pressure, and adding an appliance increases the total demand. A line originally sized for a single furnace may not be able to supply that furnace plus a new range, dryer, or generator without the pressure dropping too low, which causes appliances to underperform or fail to fire. Line length and fittings also affect capacity. We calculate the total load and the run to determine whether your existing line can handle the addition or needs upsizing, so everything on it works properly.
Is gas line installation safe?
It is safe when performed by a licensed gasfitter, properly permitted, pressure-tested, and inspected — which is exactly how we do it. The danger comes from improper or unlicensed work, where a poorly made connection or an undersized, untested line can leak and create fire, explosion, or carbon monoxide hazards. Our process — permit, licensed installation to the fuel gas code, pressure test to confirm the line holds, and inspection — is specifically designed to eliminate that risk. This is precisely why gas work should never be done by an unlicensed handyman or as a DIY project.
What should I do if I smell gas?
Treat it as an emergency. Leave the house immediately and do not operate any electrical switches, appliances, or garage door openers, since a spark can ignite gas. Once you are safely outside and away from the house, call 911 and Washington Gas. Do not go back inside to investigate the source. After the utility or fire department has made the situation safe, we can inspect the system, locate the source, and make the licensed repair. If you have a carbon monoxide alarm sounding as well, the same rule applies — get everyone out and call 911 first.

Need a Gas Line Run? — Hyattsville, MD

Licensed, permitted, pressure-tested gas-line installation from a WSSC-licensed gasfitter. Call to schedule your gas line work.

Related: Furnace Installation · Boiler Installation · All Heating Services

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Office Hours

  • Monday – Saturday: 9:00 AM – 5:00 PM
  • Sunday: Closed