Triangle's homes are mostly newer, with a median build year of 1999, so drain trouble there usually comes from what goes into the pipe. Prince William Water provides sewer service, and the lines on your property are yours to keep clear. Call the number on this page to be connected with a local plumber in Triangle.

Local conditions in Triangle
Triangle sits in southeastern Prince William County, wedged between Dumfries, Prince William Forest Park and Marine Corps Base Quantico, and is home to the National Museum of the Marine Corps. With a median home built in 1999, most houses have plastic drain lines that rarely crack or let in roots. Clogs usually trace back to grease, disposal sludge, wipes and hair, though homes backing onto wooded land near the park can still see roots in the building line.
Prince William Water provides water and sewer service in eastern Prince William County. It makes property owners responsible for lines and connections on private property, and it handles sewer cleanout cap replacement through its emergency dispatch at 703-335-7990, which also covers main breaks and outages. If you are not sure which utility serves you, your bill will say.
Comparing your options
| Option | Best used for | Keep in mind |
|---|---|---|
| Hand auger | Single sink, tub or toilet | Usually all a one-fixture clog needs |
| Machine cable | Main building drain | Opens the line; buildup may remain |
| Hydro jetting | Grease and sludge coating the pipe | Thorough clean for sound plastic lines |
| Camera inspection | Clogs that keep coming back | Finds low spots, debris or root entry |
Signs to watch for
- The lowest drain in the house fills while upstairs fixtures run
- Toilets gurgle when the washer drains
- The kitchen sink holds water after the disposal runs
- A missing or cracked cleanout cap in the yard
- Sewer odor near a rarely used drain
Timing notes
Holiday meals put a lot of grease and food waste into kitchen lines, so late fall and early winter bring more sink and main line calls. Heavy summer storms can send debris toward an uncapped cleanout, so replace a missing cap promptly. Clearing a clog is service work. If a section of drain has to be replaced, Prince William County Development Services issues plumbing permits for Triangle. Ask the plumber to show you where your cleanout and building line run once the job is done, so you can keep the cap secure and the area clear of plantings with aggressive roots. When you call, you are connected with an independent plumber who serves Triangle; it helps to know where your cleanout is and which fixtures are affected.
Drain Cleaning questions in Triangle
Who handles sewage overflowing from a manhole in the street?
Why does a basement drain we rarely use smell like sewer gas?
Are wipes sold as flushable safe for my pipes?
Why did my drain clog again a few weeks after it was cleared?
More plumbing services in Triangle
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