Water enters your home through a single main supply line — and without proper filtration, every faucet, shower, appliance, and pipe is exposed to contaminants. A whole home water filtration system treats all incoming water at the source, providing clean, safe water throughout your entire home.
Homeowners across Maryland, Washington DC, and Northern Virginia rely on whole home filtration to reduce sediment, chlorine, heavy metals, PFAS, bacteria, and other contaminants that affect water taste, odor, and long-term health.
Whether you’re on city water or private well water, a properly designed filtration system improves water quality for drinking, cooking, bathing, laundry, and plumbing protection. Learn more about well water vs city water here.
These systems are customized based on your water test results and may remove:
Sediment and debris
Chlorine and chloramine
PFAS (forever chemicals)
Iron, manganese, and rust
Sulfur odors
Bacteria and coliform
Heavy metals such as lead or arsenic
Each system is designed to match your home’s water chemistry, flow rate, and usage — never one-size-fits-all.
Learn more about water quality issues here.
A whole home water filtration system is installed at the main water line where water enters your home. Unlike under-sink or countertop filters, it filters all water before it reaches faucets, showers, appliances, and fixtures.
Many houses in Maryland & Virginia use our well water filtration services for their homes.
DC water treatment for residential homes, apartments and businesses focus mainly on city water contaminants.
Learn more about Home Water Treatment Systems in Maryland: City & Well Water Explained
Water quality varies widely by region — and even between neighboring homes. National Water Service partners with certified local laboratories across Maryland, DC, and Northern Virginia to provide accurate, location-specific water testing.
This local approach ensures your whole home water filtration system is built based on real test data, not assumptions or national averages.
Sediment, dirt, and sand
Chlorine and chloramine
PFAS / forever chemicals
Iron, manganese, and rust
Sulfur (“rotten egg” odor)
Bacteria and coliform
Heavy metals
Cloudiness, bad taste, and odor
Learn more about water quality issues.
We begin with comprehensive water testing to identify contaminants, hardness levels, bacteria, and chemical imbalances specific to your water supply.
You receive easy-to-understand results explaining what’s in your water, how it affects your home, and what filtration is required — with no pressure or upselling.
We design a non-proprietary whole home water filtration system tailored to your home, water usage, and water chemistry.
Our certified technicians install your system and provide optional annual maintenance to keep it performing year after year.
Carbon filtration systems
Sediment filtration systems
Iron & manganese removal systems
Sulfur odor treatment systems
UV disinfection systems
Reverse osmosis (point-of-use)
Acid neutralizers
PFAS filtration systems
Each system is selected based on your water test results — not guesswork.
A whole home water filtration system removes contaminants such as chlorine, sediment, bacteria, and chemicals. A water softener treats hardness minerals like calcium and magnesium.
Many homes benefit from both systems working together, especially homes with well water.
Learn More about about the comparison between Water Softeners & Inline Filters here.
The best system depends on your water test results. Professional testing ensures the system removes the contaminants actually present in your home.
Yes. City water may still contain chlorine, PFAS, heavy metals, and sediment.
Yes. Well water often requires additional treatment for bacteria, iron, sulfur, and hardness.
Most systems last 10–20 years with proper maintenance.
Yes. Treating sediment buildup and scaling can help restore proper water flow and reduce strain on plumbing, especially in homes with hard water or sediment issues.
Yes. Properly designed water treatment systems provide cleaner, safer water for drinking, bathing, cooking, and household use, making them safe for both children and pets.
Certain advanced filtration and reverse osmosis systems are designed to reduce PFAS and other “forever chemicals.” A water test is required to determine the appropriate treatment solution.
Yes. Water treatment systems are customized based on your home’s water test results, usage, and plumbing setup to ensure the most effective and efficient solution.
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.
