In Dumfries, a sump pump that stops working usually has a stuck float, a failed check valve, a power problem or a worn motor. One local twist: plumbing permits inside town limits come from the Town, not Prince William County. Call the number on this page to be connected with a local plumber in Dumfries.

The call, step by step
The number on this page connects you with an independent plumber who works in Dumfries. You will be asked whether water is rising, what the pump sounds like, whether it handles groundwater or a basement bathroom, and how close water is to outlets. If it is near power, switch that circuit off at the panel first.
At the house, the plumber fills the pit to watch a full cycle, checks the float and check valve, tests the electrical supply and follows the discharge outside. You will hear the options and the likely cost before any work begins.
What sets the price
- Fixing a part versus installing a new pump
- Sump pump or sewage ejector
- Cleaning silt or debris out of the basin
- Rerouting a discharge that drains back toward the house
- Battery backup or high-water alarm
- Town permit and inspection for new piping
- Night or weekend service
Dumfries details
Dumfries was chartered in 1749 as a colonial tobacco port on Quantico Creek and is described as the oldest continuously chartered town in Virginia. Today it is a commuter town along Route 1, just east of I-95. Prince William Water supplies the town with Occoquan Reservoir water and provides sewer service; it has done sewer main maintenance in the Williamstown neighborhood. For main breaks and outages, its Emergency Dispatch is (703) 335-7990, and customer service is (703) 335-7950.
The Town of Dumfries runs its own Building and Inspection Department, which handles permit applications and inspections for plumbing, mechanical, sanitary sewer and domestic water service work inside town limits. Prince William County does not issue permits there. Reach the Town at (703) 221-3400 with questions. A straight pump swap is different from adding an ejector or new drain piping, so ask the plumber which applies.
Keep the sump discharge outdoors and away from the foundation; Prince William Water's sewer is for household wastewater, not groundwater.
Checklist before the plumber arrives
- Cut power to the basement circuit if water is near it
- Clear a path to the pit and the electrical panel
- Stop running water if a drain is backing up
- Find the outdoor end of the discharge line
Sump Pumps questions in Dumfries
Do I need a permit to replace or add a sump pump?
What is the difference between a sump pump and a sewage ejector pump?
Is a battery backup pump worth adding?
Why does the sump pit smell?
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