In Oakton, natural gas comes from Washington Gas, so a gas smell means leaving the house and then calling 911 and 844-WASHGAS (844-927-4427), option 1, from outside. Repairs and additions on your side of the meter need Fairfax County permits, even for some like-for-like swaps. Call the number on this page to be connected with a local plumber in Oakton.

What happens when you call
You'll be connected with an independent plumber who works on gas lines in Oakton. Describe the problem or the project: a faint smell in the laundry room, a fireplace that won't light, a range moving to a new island. Say how old the house is, where the meter sits and which appliances are on gas. If the utility has already been out, mention what they did.
On a repair, the plumber shuts off the gas, finds the leak, fixes it and tests the system before relighting appliances. On new work, the line is sized for the total load, installed, pressure tested and inspected before it's used.
Cost factors
- The route from the meter and how much finished drywall it passes
- Whether the existing trunk has room for another appliance
- Number of fittings, shutoffs and sediment traps
- Fairfax County permit type and inspection
- Venting changes when a gas appliance is replaced or moved
Local conditions in Oakton
Oakton is a fully suburban, unincorporated community in central Fairfax County with mostly family homes; the median one was built in 1983. Fairfax County says Washington Gas serves most residents, with Columbia Gas of Virginia limited to parts of Chantilly and Herndon.
Permits come from Fairfax County Land Development Services through PLUS, and the County is strict about gas. Replacing a gas water heater or furnace needs a permit even when the new unit matches the old one: that's a Household Appliance (HAPL) permit. New gas piping uses a Residential Plumbing (PLBR) permit. LDS can be reached at 703-222-0801.
Homes from the early 1980s typically have original black steel gas lines that are still in good shape. The trouble spots are elsewhere: tired appliance connectors, fireplaces added in a later remodel, and lines extended to decks and patios without a proper shutoff.
Checklist before the plumber arrives
- Know where the gas meter and each appliance shutoff are
- Have the new appliance's model number and gas input rating
- Move stored items away from the furnace and water heater
- Check carbon monoxide alarms on every floor
- Keep pets away from the work area
Gas Line Services questions in Oakton
Does swapping a gas water heater or furnace need a permit?
Can a plumber add a gas line for a range, dryer or fireplace?
Why is new gas pipe pressure tested before it goes into use?
What does a yellow or lazy burner flame mean?
More plumbing services in Oakton
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