We deliver spectacular Washington, DC Water Treatment
and Well Pump Service


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

National Water Service supplies leading-edge Washington, DC water service, and after 30 years in business we still hold an outstanding service record. Our professional installers are trained in both Water Treatment and Purification, as well as all other aspects of well pump service and can perform the quality installation you're looking for.

Our prices are competitive and yet we still continually find the time to invest in classroom learning for our service members, on-the-job training, and the equipment needed to provide you with the best service.

In addition, we follow up every installation with a final inspection to ensure that the water quality is as promised and that the installation is plumbed to international plumbing codes as well as our strict guidelines!

In addition, we follow up every installation with a final inspection to ensure that the water quality is as promised and that the installation is plumbed to international plumbing codes as well as our strict guidelines!

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

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Our Washington, DC Promise

Washington, DC Water Treatment National Water Service is a local Washington, DC company with a broad service area throughout the Mid-Atlantic region and Northern Virginia. Our Washington, DC customers stand by us because we are simply the best at what we do.

We gaurantee that...

  • Your installation will be clean, neat, and the plumbing will be level.
  • Every installation will be followed up with an inspection.
  • Our quotes are guaranteed with no hidden costs.
  • We will remain committed to giving you 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