The Town of Leesburg reports its water at about 100 to 150 ppm of hardness, or roughly 5.8 to 8.8 grains per gallon, moving with rainfall. That is moderately hard, and many households add a softener to cut scale. 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 is a free referral line. It connects you with an independent plumber who works in Leesburg. Expect a few questions: how many people live in the home, where the water main comes in, whether there's a floor drain nearby, and whether you already have a softener. If you do, a photo of the control valve and the brine tank helps the plumber bring parts.
On a visit, the plumber typically tests hardness at the tap, checks pressure, looks at the water heater, and picks a spot for the resin and brine tanks with a drain and an outlet close by.
Cost factors
- Resin size, which follows hardness times daily water use
- Cutting a bypass loop into the main, or using one that was pre-plumbed
- Drain line length and the air gap fitting
- Older galvanized or mixed piping near the main in historic homes
- A carbon filter or drinking water unit added at the same time
- Disposal of an old unit
Leesburg's water, specifically
Leesburg runs its own 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 at about 100 to 150 ppm and notes that it varies with precipitation, so a reading taken after a wet stretch may differ from one in late summer.
The Town disinfects with sodium hypochlorite, a chlorine compound. The median home was built around 1993, so most houses outside the historic core have copper or PEX and a basement or garage utility area that fits a softener easily. Downtown homes can be tighter.
The Town serves some customers outside its corporate limits and publishes a service area map. If your bill comes from Loudoun Water instead, use its hardness figure.
Before the plumber arrives
- Clear space around the main shutoff and water heater
- Find the nearest floor drain, laundry standpipe or sump
- Check for a grounded outlet near the install spot
- Note any HOA rules about garage or exterior equipment
- Have your last water bill handy to confirm the provider
For permits, Leesburg addresses need a Town zoning permit first, then any building or trade permit from Loudoun County Building and Development.
Water Softeners & Filtration questions in Leesburg
Why does my hardness reading change from season to season?
How do I turn mg/L or ppm into grains per gallon?
Do I need a permit to put in a water softener?
Will softened water add sodium to what we drink?
More plumbing services in Leesburg
Water Softeners & Filtration nearby
Helpful guides
Sources
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