Best Water Treatment & Plumbing Services in Anne Arundel County, MD 

Servicing Water Heaters, Wells, and Water Filter Systems for Over 40 Years in Your Community

Water Testing from National Water Services

Don’t let your water quality be something you need to worry about in your own home or business.


Water should always be trusted, be safe, and be clean, from your kitchen sink to your bathtub faucet. That is why National Water Service has been around for decades, because we believe in affordable, trusted water testing for every home and every family.


Clients rely on us for well pump replacements, water heater installations, water filtration systems, plumbing services, and more.


We are your one-stop shop for all water quality solutions needs. With an offer of a free consultation that tests your current water quality, you have nothing to lose but a lot to gain by reaching out to us today.


Live the National Water Service way, with safer, cleaner water and a system that is low maintenance and simple to service.

Residential Water Testing to Keep Your Drinking Water Safe

City Water In-Home Water Treatment. A Reverse Osmosis for up too 99.9% contaminant free cooking & drinking water, a Water Softener for Hard Water and a Carbon Tank.

Everyone has the right to safe drinking water in their home. Whether you live in the city or have well-provided water in the country, there are solutions for you and your home to have a water filtration system that works for you.


National Water System provides reliable water testing, so if you are purchasing a new home or catching up on your to-do list, we are available to give you answers and provide water treatment solutions.


Our residential services also expand to well pump repairs, water heater installations, and we are a trusted plumbing company.


Contact us if you need:


When our team members work with you, we put your needs first. The customer service quality we provide is so high that clients continue to call us for decades to return to their homes when they need water services because our workmanship is reliable and our quality unbeatable.

Unrivaled Commercial Water Services for Grocery Stores, Offices, and More

Whole Foods misting services

We are a leading commercial water service company because we understand safe, clean water does not stop at home. Businesses and commercial properties have water needs, and we have the water solutions for them all.


Just some of our commercial water services include:


Our crewmen have been proven reliable, trustworthy, and exceedingly excellent in all projects they complete. Our work is finished neat, tidy, and organized, so you can inspect your lines whenever you need to, no confusion or hassle.


Don’t let another day go by with sub-par water quality being provided to your customers or employees. Talk to National Water Service about how obtainable a functioning commercial water filtration system is for you, today.

Emergency Water Services in Anne Arundel County that Work for You

new constant pressure pump and well cap replacement

Our customers come first, which is why we offer seven-day-a-week emergency water services.


We have always listened when our clients have asked us for more services so we can be their one water company for all their home or business needs. This is why we are now becoming a leading plumbing company in Anne Arundel County, with a master plumber and crew on staff.


The extent of our services cannot be beaten by any other water company servicing the Anne Arundel County area. We have been a leader in the water service industry for forty years, because we stay committed to the quality of our work and always want to be a neighbor t0 our clients.


Talk to us about questions, concerns, or to schedule a service day. We have special offers for new clients, so there is nothing to lose when you work with us. We promise to put your mind at ease and get you back to enjoying your home and business.

We Service Your City! 


Glen Burnie


Severna Park








Fort Meade

Linthicum Heights


Shady Side


Brooklyn Park

Cape Saint Claire

Riviera Beach


Lake Shore




Maryland City

Highland Beach



Herald Harbor