About The Company

National Water Service, Water Treatment and Purification


At National Water Service, we set the standard for home water treatment, purification, as well as a complete line of well pumps, boosters, etc. If you need it, we have it! In addition to offering outstanding service and workmanship, our staff is friendly and eager to answer any of your questions.

In dealing with Residential areas, one of the important things a homeowner needs to consider is water quality. Before any decision should be made, a well informed homeowner should have his/her water evaluated. It is important to note that whether on City Water or a Well System, water quality can vary quite a bit from neighborhood to neighborhood. National Water Service is happy to do a basic analysis at no charge. And if extensive testing is deemed necessary, we have testing services available for virtually any contaminant at a reasonable rate.

An Award-Winning company Time and Time Again!

Serving all of Maryland, Virginia, and Washington D.C. for superior Water Treatment and Well Pump Service

National Water Service has been installing and servicing complex water systems in Restaurants, Hotels, Hospitals, Shopping Centers, and various other Government and Non-Governmental sites all over the State of Maryland, Washington DC, and Virginia for over 30 years. We work with area Architects, Builders, and other Construction Firms to create custom applications for Water Treatment and Purification.

Our installers are all professionally trained in both Water Treatment, Purification, as well as all aspects of well pump service. For over 30 years we have dominated the industry in our area and we still hold an unblemished record. Our prices are competitive and yet we still find the time to continually invest our time in classrooms, on the job training, and on the proper equipment to get the job done.

In addition, every installation is followed up on by an 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!

For over 30 years, National Water Service has been serving the entire Mid-Atlantic regions well water, well pump and water treatment, purification and filtration needs!