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Water testing in Washington, DC
14 companies serving Washington, DC that list water testing on their own websites, in alphabetical order.
Bond Water Technologies, Inc.
A commercial and industrial water treatment firm (not residential) serving Maryland, Washington DC, Virginia and the Carolinas. It handles cooling tower and boiler water, wastewater, and lab and Legionella testing.
Chemstar WATER
A commercial water treatment company serving Maryland and Washington, DC. Its work covers cooling tower and boiler treatment, Legionella prevention and water management plans, closed-loop systems and lab testing for buildings.
Cherry Blossom Plumbing
An Arlington plumbing company serving Northern Virginia and Washington, DC. It offers free water testing for hardness, chlorine and sediment, then sizes whole-home carbon or sediment filtration, softeners or reverse osmosis to the results.
ClearWave Water Solutions
A Virginia water treatment company with an Arlington office and a Washington, DC service page. It offers free water testing, softener installation, reverse osmosis drinking water systems, whole-house filtration, salt-free conditioners and UV disinfection.
DS Home Inspection Services, LLC
A home inspection company that offers water quality testing (iron, lead, nitrate, nitrite, bacteria and turbidity), lead and copper testing for older homes, radon-in-water testing and well water testing, with Washington, DC in its service area.
Hague Quality Water of Maryland
A family-owned Maryland water treatment dealer whose Washington, DC page covers both municipal and well water. It offers free water testing, softeners, reverse osmosis, whole-home filtration, well treatment including UV, and commercial systems.
Len The Plumber Heating & Air
A plumbing and HVAC company with Silver Spring and Beltsville offices that has a Washington, DC service area. It installs whole-house filtration and softeners, and for well homes it tests water and installs filtration, softening, disinfection (including UV) and reverse osmosis.
Mallick Plumbing & Heating, Inc.
A Montgomery County plumbing company that says it serves parts of Northwest Washington, DC. It installs and services softeners (including commercial softening), whole-house filtration, reverse osmosis and UV, and tests municipal and private well water.
National Water Service
A Maryland water treatment and plumbing company that says it serves all of Washington, DC. Its DC page covers compact softeners for condos and townhomes, catalytic carbon filtration for chloramine, reverse osmosis and free in-home water testing; it also handles well water and commercial systems.
NextDay Inspect
A home inspection firm that offers water testing as a separate environmental service in Northern Virginia, Maryland and Washington, DC.
Peak Environmental
An environmental testing company with Poolesville and Columbia offices that offers home water testing across central Maryland, Northern Virginia and Washington, DC.
Pristine Water Treatment
A Stafford-based water treatment company that lists Washington, DC among its service areas. It offers free in-home and paid lab water testing, softeners, iron, sulfur and acid-neutralizer systems, reverse osmosis, whole-house carbon filtration and UV for wells, and repairs most makes.
Sila Heating Cooling Plumbing
A heating, cooling and plumbing company serving DC, Maryland and Virginia. It installs whole-home filtration at the main line, point-of-use filters, reverse osmosis and water softeners after hardness and water-quality testing.
Water Testing Labs of Maryland, Inc.
A water testing laboratory serving Maryland, Delaware, Washington DC and Northern Virginia. It tests water for personal use, real estate transfers and community water supplies, and sells test kits such as a lead and copper kit.