Unlike city water, well water is not treated or monitored by a municipal system. This means contaminants such as bacteria, iron, sulfur, sediment, heavy metals, and PFAS can enter your water supply without warning.
A properly designed well water filtration system protects your family, plumbing, and appliances by removing harmful contaminants and improving water quality at every tap. From drinking and cooking to bathing and laundry, filtration ensures your water is safe, clean, and dependable year-round.
Homeowners across Maryland, Washington DC, and Northern Virginia rely on professional well water filtration to address region-specific water issues caused by soil conditions, groundwater chemistry, and aging wells.
At National Water Service, our mission is to give you clean, safe, great-tasting water — backed by over 47 years of trusted experience.
Every filtration solution starts with accurate testing. We collect water samples from your home and work with trusted local laboratories to analyze bacteria, sediment, metals, hardness, pH levels, and other contaminants specific to well water.
Once testing is complete, we review the results with you in plain language. You’ll understand what’s in your water, how it affects your home, and which contaminants need treatment — without pressure or upselling.
Based on your results, we design a non-proprietary well water filtration system sized for your home, water usage, and specific water chemistry. No one-size-fits-all systems. Only what your water actually needs.
Our certified technicians install and test your system to ensure proper performance. Optional annual service and maintenance plans help keep your filtration system working efficiently year after year.
Not all well water filtration systems are the same. Single-point filters treat water at one faucet, while whole-house well water filtration systems protect every tap, appliance, and fixture in your home.
For homeowners using private wells in Maryland, Washington DC, and Northern Virginia, whole-house systems are often recommended because they treat sediment, bacteria, iron, sulfur, and other contaminants at the source — before water enters your plumbing system.
We install a wide range of whole-house well water filtration systems, including:
Sediment filtration systems to remove dirt, sand, and particles
Carbon filtration systems for taste, odor, and chemical reduction
Iron and manganese removal systems to prevent staining
Sulfur odor treatment for “rotten egg” smells
UV disinfection systems for bacteria and coliform protection
Reverse osmosis systems for drinking water purification
Acid neutralizers to correct low pH and protect plumbing
Radon mitigation systems where applicable
Each system is selected based on your water test results — not assumptions.
The best well water filtration system for a home depends on the specific contaminants present in your well water. Unlike city water, well water is not treated or monitored by a municipality, which means it can contain bacteria, iron, manganese, sulfur, sediment, heavy metals, or PFAS.
The most effective approach is a custom whole-house well water filtration system designed after professional water testing. Common systems include:
Sediment filtration to remove dirt, sand, and particles
Carbon filtration to reduce odors, chemicals, and organic contaminants
Iron and manganese removal systems to prevent staining and metallic taste
UV disinfection systems to eliminate bacteria and coliform
Reverse osmosis systems for drinking water purification
At National Water Service, we design non-proprietary well water filtration systems based on your actual water test results — not guesswork — ensuring safe, clean, and great-tasting water throughout your home.
For drinking water, reverse osmosis (RO) systems are considered the most effective. They remove contaminants such as PFAS, lead, nitrates, chlorine, and dissolved solids, providing high-quality, great-tasting water at the tap.
In most cases, homeowners with well water benefit from a whole-house well water filtration system rather than a single point-of-use filter.
A single filter (such as an under-sink or countertop filter) only treats water at one location, typically for drinking. However, well water contaminants affect every part of your home, including:
Showers and bathing
Laundry and appliances
Plumbing and fixtures
Water heaters and pressure systems
A whole-house well water filtration system treats water at the point where it enters your home, protecting your plumbing, appliances, and family from harmful contaminants while improving water quality at every tap.
Point-of-use filters can be added for drinking water, but they should be used in combination with, not instead of, a properly designed whole-house system.
Is well water filtration different from city water filtration?
Yes. Well water often contains bacteria, iron, sulfur, and naturally occurring contaminants that require specialized treatment not used for city water.
With over 47+ years of experience in water repair and management, we are proud to offer dedicated Water Techs & Master Plumbers to homes and businesses. Get affordable pricing, competitive quotes, and quality materials that last.
