Best Water Treatment & Filtration Company in Germantown, MD

For Over 40 Years We’ve Been Trusted with Residential and Commercial Water Filtration


Under the sink home water serviceClean water is the most important step to a healthy life, whether you own a house or provide water for a business. We have been around Germantown for the last 40 years, earning our client’s dedication that has resulted in endless repeat customers, which is workmanship quality you can rely on.

It is important to National Water Service that our clients receive the best water treatment, testing, and well pump replacements available. That’s why we provide services you can stand behind.

From water specialists to employing a master plumber, we want to make sure you only need to contact one business to have all your water needs covered, reducing hassle and cutting out stress.

With us at your service, you can get back to focusing on the other aspects of your home and business. We provide free consults, discounts for new customers, and ensure our customer satisfaction is a five star rating, every time.

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Your Home’s Water Filtration System Comes First

Home water service

Home ownership comes with a lot of water care, from quality to well replacements. Luckily for you, we manage every need you have, from the smallest fix to the largest replacement.

Because our team services almost everything, it provides you with dependability and the highest guarantee possible. Some of the few things we can do for you and your family’s home includes:


Groundwater, city water, county supplied and wells all need to be checked and treated with same care. Treating lead and radon, and softening up hard water levels are also available to you, so you can trust the water coming from your pipes, wherever you may live.

A master plumber is also on hand for bathroom or kitchen remodels, granting you the space you want within budget, all bases covered. A free consult can be scheduled today, reach out to us for details. 

Your Business Has Water Needs, Let Us Serve You


Commercial water service tank and employee

Nothing is more satisfying than owning your own business, and you feel proud every time you serve your clients and employees. Give them more of the best by trusting us with your water system needs.

All around Germantown and near-by areas our team has been trusted by government and non-government owned companies for their water systems. National Water Service works alongside local construction firms, builders, and architects in order to create custom applications for water purifications and treatments, giving everyone the best their business can get.

Hospitals, shopping centers, restaurants, and local offices have all trusted our team to treat their water and provide water storage and flood prevention systems. It’s the trenching, boosts and tanks knowledge, and availability to work with low yielding wells and irrigation systems alike that makes us a top company for commercial water needs.

Because your business is important to you, let us be apart of your satisifaction.

We Provide Germantown the Highest Customer Satisfaction

Water service employee managing a wellCustomer satisfaction is our top goal with every install and repair we complete. We employ teams of professionally trained specialists in both water treatment and purification, and well pump services.

For decades National Water Service has held an unblemished record, and that allows us create repeat clients we enjoy assisting no matter where life takes them. With reasonable, competitive rates, we stay within your budget without sacrificing quality.

All our achievements allow us to invest in job training, classrooms, and proper equipment so we are ahead of the game. The tools we use include underground line finders, pump hoists, and well cameras to fit a variety of needs.

We adhere to all guidelines, provide tidy system install, and follow-up with inspections to confirm our services were completed correctly. Additionally, we are around every day of the week for emergency services, so you don’t have to wait till Monday rolls around to get accidents fixed.

With our highest investment being in our customers, why would you go anywhere else?


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