Water Treatment | Plumbing | Well Pumps



Even clear-looking water can contain contaminants that affect taste, safety, and your family’s health. Across Maryland, Washington D.C., and Northern Virginia, homeowners often face a variety of water quality challenges — whether from municipal supplies or private wells.
At National Water Service, our mission is to give you clean, safe, great-tasting water — backed by over 45 years of trusted experience.
We start with a comprehensive water test. Our specialists analyze your tap or well water to identify exactly what’s in it — from minerals and bacteria to pH imbalance or chemical contamination.
You’ll receive a detailed water analysis report explaining what was found, how it affects your home and health, and what solutions are best for your specific water problems.
We design a personalized water treatment plan using non-proprietary, top-of-the-line systems built to last.
That means:
No locked-in service contracts
No proprietary parts
Only transparent, long-term water solutions
All installations are handled by our certified water treatment technicians, who bring decades of hands-on expertise to every job.
Your water system works best with regular care. We offer yearly inspections and maintenance to keep your equipment running efficiently, ensure filters and media are replaced on schedule, and verify that your water quality stays perfect year after year.
Our annual service plans help protect your investment and keep your home’s water clean, safe, and reliable — the National Water Service way.
Each region in the Mid-Atlantic has unique water chemistry — and even two homes on the same street can have completely different results.
From whole-home systems to specialized filters in residential and commercial settings, we offer non-proprietary equipment designed to solve your specific water issues.
With over 45+ 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.
National Water Service has a solution for your water issues. We offer a variety of products tailored to each individual home’s or business’ needs including but not limited to: acid neutralizers, aeration & radon removal systems, birm systems, solution feeders, ozone treatment, sediment filtration, reverse osmosis purification systems, UV disinfection lights, water softeners, carbon tanks, IBSB systems, KX Pros, multistage systems, and water heaters. For quality service from one of our professionals, please fill out the contact form below.
National Water Service offers comprehensive solutions for various water quality issues commonly encountered in many households & small businesses. Our range of products above is designed to address your specific water wants and needs, ensuring clean and safe water for your home or business.
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