If your Dumfries water heater is leaking from the tank or no longer keeps up, replacement usually makes more sense than another repair. Inside town limits, plumbing and mechanical permits and inspections go through the Town of Dumfries Building and Inspection Department, not Prince William County. Call the number on this page to be connected with a local plumber in Dumfries.

What happens when you call
The number on this page puts you in touch with an independent plumber who serves Dumfries. Expect questions about the heater's size and fuel, where it's installed and whether it's leaking. If it is, close the cold supply valve above the tank and turn off the gas or breaker until the plumber arrives.
On site, the plumber checks the tank, vent, fuel supply and shutoffs, then prices a matching heater and any upgrade you'd like to compare, such as a larger tank or a tankless model.
What sets the price
- Tank or tankless, fuel type and capacity
- Town of Dumfries permit and inspection for in-town addresses
- Venting, gas connector or electrical updates
- Where the heater sits and how easy it is to reach
- Expansion tank, drain pan and removal of the old tank
Dumfries conditions
Dumfries describes itself as the oldest continuously chartered town in Virginia, chartered in 1749, and today it's a commuter town along U.S. 1 just east of I-95. It runs its own building and inspection department, which handles permits for plumbing, mechanical work and domestic water service inside town limits; Town Hall on Main Street can be reached at 703-221-3400. Addresses outside town limits fall under Prince William County.
Prince William Water supplies Dumfries with Occoquan Reservoir water treated at Fairfax Water's Griffith plant. The utility rates its water as moderately hard, 61 to 120 mg/L, so tanks gather some sediment over time and an annual flush is worthwhile. Both Columbia Gas of Virginia and Washington Gas operate in Prince William County, so your gas bill names the utility. If you smell gas, leave the house, then call 911 and that utility from outside. Whatever the age of your house, the plumber will look at the valves and venting before quoting.
Checklist before the plumber arrives
- Clear space around the heater and a path out of the house
- Note the label's capacity, fuel and year of manufacture
- Find the main shutoff and the gas valve or breaker
- Check whether your address is inside town limits
- Ask that the Town permit and haul-away be on the quote
Water Heater Replacement questions in Dumfries
Does replacing a water heater here need a permit?
How hard is the local water, and what does it do to a new tank?
How long will the house be without hot water?
How do I look after the new water heater?
More plumbing services in Dumfries
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