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Common Water Issues
About NWS
- About Us
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Contact Us
- Our Locations
  - Darnestown MD
  - Highland MD

Home
Services
Common Water Issues
About NWS
- About Us
- Blog
- Gallery
- Testimonials
Resources
Contact Us
- Our Locations
  - Darnestown MD
  - Highland MD

Pinhole Leak

Pinhole Leak

Acid Neutralizer

Water Softener for hard water and an Acid Neutralizer

Solution Feeder

a Solution feeder, a sediment filter and a reverse osmosis

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For over 40 years, National Water Service has been the leading water company throughout the Mid-Atlantic Region.

Contact Information

7 Day a Week Emergency Service

Main Office

7249 Mink Hollow Road
Highland, MD 20777

Our Store

14111 Seneca Road
Darnestown, MD 20874

Call Us

Maryland: (301) 854-1333
Washington DC: (301) 854-1333
Baltimore: (410) 379-1993
Virginia: (540) 882-4006
Fax: (301) 854-1538

Email: info@nationalwaterservice.com

SOME OF OUR SERVICE AREAS

Featured Counties

- Frederick County, Maryland

- Howard County, Maryland

- Montgomery County, Maryland

- Loudoun County, Virginia

- Anne Arundel County, Maryland

- Baltimore County, Maryland

- Carroll County, Maryland

- Prince George's County, Maryland

- Fairfax County, Virginia

- Prince William County, Virginia

- Washington, D.C.

Featured Cities

- Clarksville, Maryland

- Gaithersburg, Maryland

- Germantown, Maryland

- Rockville, Maryland

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