For over 30 years, we have served the people of Fairfax
with award-winning service.


We deliver exceptional Water Treatment and Well Pump Service to Fairfax County

National Water Service supplies Fairfax with superb water service with our over 30 years of experience and an outstanding record. Our professional technicians are trained in both Water Treatment and Purification as well as all other aspects of well pump service. We provide high-quality installation with professionalism, expertise, and experience.

We continually invest in classroom learning, on-the-job training, and the equipment needed so that our service team can provide you with the best service available, all while keeping our costs as low as possible.

We believe in our work, and therefore, we perform a final inspection at the end of every installation to ensure that the water quality is as promised and that we have adhered to international plumbing codes as well as our own high standards.

Send us an email or call now to speak with a member of our well-trained and courteous office staff.

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water treatment process

Water Treatment Process
Downloaded this PDF, a detailed, illustrated look at how our Water Treatment Process works.


Our Fairfax County Promise

Fairfax County Water Treatment National Water Service is a local Fairfax company with a broad service area throughout the Mid-Atlantic region and Northern Virginia. Our customers in Fairfax stand by us because we simply excel at what we do.

We gaurantee:

  • A clean and neat installation with all plumbing level.
  • A full inspection at the end of each installation.
  • Direct, clear quotes.
  • Fast, friendly, and fair service.

Get a Quote Don't Hesitate, Give us a call today!
For over 30 years, National Water Service has been serving the entire Mid Atlantic region with Quality products and Exceptional Service!

Proudly Serving Clients for Over 30 years in:

  • Howard County
  • Montgomery County
  • Frederick County
  • Anne Arundel County
  • Carroll County
  • Baltimore County
  • Prince George's County
  • Harford County
  • Washington DC
  • Baltimore City
  • Loudoun County
  • Fairfax County