Natural gas heats most of the homes in Northern Virginia, runs our water heaters and ranges, and fires up the grill on the deck. It's clean, efficient, and safe when the lines carrying it are installed and maintained correctly. As the heating season starts and furnaces come back to life, here's what a Licensed Gas Fitter wants every homeowner to know about keeping their gas system safe.
How to recognize a gas leak
Natural gas has no smell of its own. Utilities add an odorant that gives it the distinctive rotten-egg smell so leaks are easy to notice. Trust your nose, but also watch for the quieter signs:
A rotten-egg or sulfur smell
Anywhere in the house, but especially near the water heater, furnace, range, fireplace, or the meter outside. A faint whiff that comes and goes still counts.
A hissing or whistling sound
Near an appliance connection, a shutoff valve, or along exposed pipe. Gas escaping under pressure makes noise even when you can't smell it yet.
Dead or dying plants over a buried line
A patch of brown grass or wilted shrubs in an otherwise healthy yard, often in a line between the meter and the house or out to a grill or pool heater, can mean a leak underground.
Bubbles in standing water, or dust blowing from the ground
After rain, bubbles rising in a puddle over the gas line are a clear warning. So is dirt or dust being blown up from a spot in the yard.
Unexplained headaches, dizziness, or nausea at home
Symptoms that improve when you leave the house can point to a gas leak or to carbon monoxide from an appliance that isn't burning cleanly. Either one needs attention right away.
What to do in the first 60 seconds
Then call a licensed gas fitter. The utility will shut off the gas and confirm the leak, but repairing the piping inside your home and relighting your appliances is the plumber's job. We're available 24/7 for exactly this.
The most common gas line problems we find
Aging appliance connectors. The flexible connector behind your range, dryer, or water heater has a service life. Older brass or uncoated connectors can crack at the fittings, and connectors should never be reused when an appliance is replaced.
Corroded or improperly supported pipe. Black iron pipe in a damp basement or crawlspace, or pipe run through soil without the correct coating, corrodes from the outside in. Sagging, unsupported runs stress the threaded joints.
DIY additions. We regularly find grill lines, fireplace inserts, and outdoor kitchens tied into the house supply with the wrong fittings, no shutoff valve, or no sediment trap. Every one of these should be done by a licensed gas fitter and, in most Northern Virginia jurisdictions, permitted and inspected.
Undersized lines. Adding a tankless water heater, a generator, or a pool heater to an existing line can starve every appliance on it. The whole system has to be sized for the total load, not just the new piece.
Unbonded flexible piping. Yellow corrugated stainless steel tubing (CSST) is common in homes built after the late 1990s. It must be properly bonded to the home's electrical ground to protect it from lightning damage. Many older installs were never bonded.
A simple yearly gas safety routine
Know where your shutoffs are
Every gas appliance should have its own shutoff valve within reach, and the main is at the meter. Make sure everyone in the house can find and turn them.
Install and test carbon monoxide detectors
One on every level and outside sleeping areas. Replace batteries each fall, and replace the units themselves per the manufacturer's date, usually every 5 to 7 years.
Look at the flames
Burners on a gas range, water heater, or furnace should burn steady and blue. Yellow, orange, or flickering flames and soot around an appliance mean incomplete combustion. Have it serviced.
Keep the meter and vents clear
Don't bury the meter behind landscaping or pile snow against it, and keep appliance exhaust vents free of leaves, nests, and debris.
Schedule a professional inspection
A licensed gas fitter will pressure-test the system, check every connection with a leak detector, confirm CSST bonding, inspect connectors and shutoffs, and verify appliances are venting properly. It takes about an hour and is the single best thing you can do for gas safety at home.
When gas work is required by law to be done by a professional
In Virginia, installing, extending, or repairing gas piping is licensed work, and most counties, including Fairfax and Loudoun, require a permit and inspection for new or modified gas lines. That includes running a line to a new range, grill, fireplace, generator, or pool heater, and converting a water heater from electric to gas. It's not a place for a handyman or a weekend project. P & D Plumbing is a Licensed Master Plumber and Gas Fitter in Virginia and Maryland, and we pull the permit and meet the inspector on every gas job.
When was your gas system last inspected?
Schedule a gas line inspection before the heating season. We'll test every connection, check your appliance connectors and shutoffs, and give you a straight answer on what, if anything, needs attention.
Call (703) 939-4473