All companies › Areas › Loudoun County
Water Treatment Companies Serving Loudoun County
12 water filtration and water treatment companies that are based in or say they serve Loudoun County, in alphabetical order.
Bell Pump & Well Inc.
Well service company that installs and maintains private well systems and offers water conditioning and filtration plus well water testing for problems such as pH, hardness, iron and bacteria.
ClearWater Well & Pump
Well and pump company with offices in Front Royal, Warrenton and Manassas that installs whole-house filtration and softeners and performs water testing and well inspections.
Dominion Water
Second-generation family business in Purcellville that sells and installs softeners, aeration iron filters, acid neutralizers, UV units and sediment filters, and offers free water analysis.
J.R. Snider
Marshall-based water care and plumbing company that sells and services softeners, conditioners, iron and sulfur filters and drinking water filters, with in-home water testing and commercial systems.
Len The Plumber Heating & Air
Regional plumbing company with an Alexandria office that tests well water and installs softeners, reverse osmosis, carbon filters, iron removal and UV or chlorination treatment.
Mermaid Water & Plumbing
Manassas company that installs and services Kinetico softeners, reverse osmosis and whole-home treatment, treats well water, and also provides plumbing and well pump work.
National Water Service
Maryland-based water treatment company that serves Northern Virginia with residential and commercial filtration, softeners, reverse osmosis, UV, iron and sulfur treatment and water testing.
Pioneer Plumbers
Family-owned Northern Virginia plumbing company whose water heating and filtration service covers whole-home filtration and softener sizing and installation.
Pristine Water Treatment
Stafford-based company offering free in-home and lab water testing, softeners, iron and sulfur systems, acid neutralizers, reverse osmosis, UV and whole-house carbon filtration, and repairs on most residential equipment.
Quality Water, Inc.
Family-owned water treatment company that installs softeners, whole-home filtration and under-sink reverse osmosis, offers free water analysis, and handles well water and commercial systems.
Tri-County Pump Service, Inc.
Maryland-based well pump and water treatment company with a by-appointment Purcellville location; it lists softeners, UV, iron filters, air eductor systems, reverse osmosis and water testing for Loudoun County.
Veteran Plumbing Services
Veteran-owned plumbing company that tests water and installs whole-house filtration, softeners, reverse osmosis and UV or chlorination for both well and city water.