Gas in the City of Manassas comes from Columbia Gas of Virginia, not Washington Gas, so a gas smell means leaving the house and then calling 911 and Columbia Gas at 1-800-544-5606 from outside. Repairs and new lines past the meter are permitted by the City. Call the number on this page to be connected with a local plumber in Manassas.

What happens when you call
The number on this page puts you in touch with an independent plumber who takes gas piping jobs in Manassas. You'll be asked what's going on: a smell that comes and goes, an appliance that won't light, or a new line you want added. Have the appliance details handy and know where the meter is. If Columbia Gas has already visited and shut off or tagged something, pass that along.
Repairs follow a familiar routine: gas off, leak located, joint or pipe section replaced, the system tested, appliances relit and checked. New work adds sizing, a pressure test and the City's inspection.
What affects the cost
- Distance from the meter and the route through basement, crawlspace or walls
- The combined load of the appliances on the line
- Pipe material and the count of fittings, valves and connectors
- City permit and inspection
- Patching finished surfaces afterward
Manassas conditions
Manassas has been an independent city since 1975 and is separate from Prince William County. The City runs its own electric, water and sewer utilities, but natural gas is Columbia Gas of Virginia territory; the City's Natural Gas Customer CHOICE program names it as the gas utility. One detail worth knowing: the City's after-hours utility line handles city electric, water and sewer, not gas. A gas odor goes to 911 and Columbia Gas.
Permits come from the City of Manassas Development Services at City Hall, 9027 Center Street, 703-257-8200. The City requires building permits for equipment regulated by the Virginia Uniform Statewide Building Code, and gas piping and gas appliances fall into that category. Addresses outside city limits, including many with a Manassas mailing address, go to Prince William County instead.
The median home in the city was built in 1985. Old Town and the streets around it hold older houses where gas lines have been changed many times, while newer subdivisions usually have simpler layouts with flexible tubing branches.
Quick checklist before the visit
- Confirm the house is inside city limits, or tell the plumber if it isn't
- Locate the meter and the shutoff valve at each appliance
- Note the model and BTU rating of any new appliance
- Test the carbon monoxide alarms
- Clear access to the furnace, water heater and range
Gas Line Services questions in Manassas
I smell gas inside. What should I do first?
How do I know which gas company serves my address?
Does new gas piping need a permit here?
We are all-electric. Can natural gas be brought in?
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