If your Leesburg water heater is leaking from the tank or losing the fight to keep showers hot, a replacement usually beats another repair. Building permits inside the town come from Loudoun County Building and Development after a Town of Leesburg zoning permit, so check with the County on what the job needs. Call the number on this page to be connected with a local plumber in Leesburg.

What happens when you call
The number on this page connects you with an independent plumber who serves Leesburg. You'll be asked about the heater's size, whether it runs on gas or electricity, where it sits, and whether it's leaking now. If it is, shut the cold supply valve above the tank and turn off the gas or the breaker before the visit.
At the house, the plumber checks the tank, venting, gas or electrical supply and shutoff valve, then prices a matching replacement and any upgrade you want to consider.
Cost factors
- Tank versus tankless, gallon size and efficiency rating
- Gas, electric or heat pump, and any fuel change
- Venting, gas connector or electrical updates
- Expansion tank, drain pan or relief line work
- The permit path: Town zoning approval, then Loudoun County
- Removal and disposal of the old heater
Leesburg conditions worth knowing
Leesburg runs its own water and sewer utility, separate from Loudoun Water. The Town treats Potomac River water at its Kenneth B. Rollins Water Filtration Plant and also has one groundwater well. Its water quality report puts hardness typically at 100 to 150 ppm (about 5.8 to 8.8 grains per gallon), varying with rainfall, and the water is disinfected with chlorine. That level is moderately hard, so a tank gathers sediment and an annual flush is worth the few minutes.
The median Leesburg home was built in 1993, with older houses in the historic downtown and newer subdivisions around it. Washington Gas serves the area; if you smell gas, leave first, then call 911 and Washington Gas at 844-WASHGAS (844-927-4427), option 1. Some properties outside town limits are also Town water customers, so the bill tells you which utility you have.
Before the plumber arrives
- Clear a path to the heater and a few feet around it
- Note the label details: gallons, fuel, model and year
- Locate the main water shutoff and the gas valve or breaker
- Have a rough idea of peak use, such as morning showers back to back
- Ask whether the quote covers the Town zoning step, the County permit and haul-away
- If the heater sits in a finished basement, move rugs and boxes that could get wet when the old tank is drained
Water Heater Replacement questions in Leesburg
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 do I find out who supplies my water?
What happens to the old tank?
More plumbing services in Leesburg
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