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Water Treatment Companies Serving Frederick County
11 water filtration and water treatment companies that are based in or say they serve Frederick County, in alphabetical order.
BPM Heating, Cooling & Plumbing
Frederick HVAC and plumbing contractor that installs water softeners, whole-house carbon and sediment filtration, combined softener-filter systems and point-of-use filters.
Carroll Water Systems
Authorized EcoWater dealer providing softeners, filtration, reverse osmosis, water testing and well services including drilling and pumps, for homes and businesses. Also has offices in Virginia and Pennsylvania.
Crystal Water Plumbing
Hagerstown plumbing company that installs water softeners and water purification systems and handles well pump installation.
First Class Mechanical
Westminster plumbing, HVAC and well pump contractor that installs softeners, sediment and backwashing filters, reverse osmosis units, UV systems and acid neutralizers, with free drinking water testing.
HydroWells
Well drilling and service company based in Poolesville and Dickerson that installs and repairs softeners, sediment filtration, iron and manganese removal, UV and acid neutralizers, and arranges certified lab water testing.
Larry & Sons Plumbing, Heating, Cooling, & Electrical
Home services company with Hagerstown and Frederick locations offering point-of-use and point-of-entry filtration, softeners, reverse osmosis including whole-house units, water testing and treatment repair.
Mallick Plumbing & Heating, Inc.
Plumbing and heating company with offices in Gaithersburg, Frederick and Woodbine that installs whole-home filtration, softeners and under-sink reverse osmosis, with on-site or lab water testing.
Master Plumbing
Gaithersburg plumbing contractor that installs water treatment systems including Aquasana filters and services existing systems of other brands.
National Water Service
Woodbine company providing well pump service, plumbing and water treatment, including softeners, carbon and sediment filtration, reverse osmosis, iron and sulfur systems, UV and radon removal, for homes and commercial sites.
Tri-County Pump Service, Inc.
Well pump, water treatment and septic company with offices in Boonsboro and Frederick. It installs softeners, iron filters, reverse osmosis, sulfur aeration, UV and PFAS treatment, with free water analysis.
Water Doctor
Water treatment and well company that installs softeners, home filtration, reverse osmosis, UV sterilizers and iron and acid water treatment, and provides residential, commercial and lab-certified water testing plus well pump service.