Chantilly homes have a median build year of 1987, so most drain calls there involve grease, wipes and hair in otherwise sound pipe. A plumber can clear the line and tell you whether the clog was in your private lateral or a fixture branch. Call the number on this page to be connected with a local plumber in Chantilly.

Who checks the sewer main when my basement drain backs up?
Fairfax County's Wastewater Management program owns the public sewer mains in Chantilly. The County says that if sewage backs up while no fixtures are being used, you should call its 24-hour line at 703-323-1211 first, so a crew can check whether the main is blocked. If the main is fine, the private lateral from the building to the main is the owner's responsibility, and a plumber clears it. The County does not locate or mark private laterals, so a plumber may trace yours with a camera and locator if it has never been mapped.
Why does a fairly new Chantilly house keep clogging?
With a median build year of 1987 across neighborhoods like Franklin Farm and Greenbriar, most houses are of an age where plastic and cast iron drains are usually in decent shape, so repeat clogs tend to come from habits: grease poured down the sink, wipes flushed, food sludge from a disposal, or hair in shower drains. Less often, a section of lateral has settled and formed a low spot where waste collects. If a cleared line clogs again within a few months, a camera inspection is the quickest way to tell a habit problem from a pipe problem.
Does drain work in Chantilly need a permit?
Clearing a blockage is service work. Fairfax County Land Development Services requires permits for new, repaired or relocated plumbing, with an exemption for like-for-like fixture replacement in the same location. A broken lateral section or a relocated drain line found during cleaning may need one, filed through the County's PLUS system.
A local note
Chantilly has a large mix of townhouses and single-family homes with finished basements. In those layouts the cleanout is sometimes tucked behind a finished wall or under stairs, which slows the work and can raise the cost. If you know where yours is, leave it reachable; if you do not, ask the plumber to show you once the line is clear. When you call, you are connected with an independent plumber who serves Chantilly. Mention whether the basement has a floor drain, a laundry sink or an ejector pit, since each changes how the plumber approaches the line.
Drain Cleaning questions in Chantilly
How can I tell whether the clog is in my own line or in the public sewer?
Where is the sewer cleanout usually found on a house with a basement?
Are wipes sold as flushable safe for my pipes?
When is hydro jetting a better choice than a drain cable?
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