National Water Service

National Water Service National Water, for all of your water treatment, filtration, purification, well pump & plumbing needs!

With a legacy spanning over 45 years, National Water Service is a premier provider of comprehensive water solutions. Specializing in water treatment, well systems, and plumbing, they serve residential and commercial clients across Maryland, Washington, D.C., and Northern Virginia. The company collaborates with architects, builders, and construction firms to design and install bespoke systems for w

ater filtration, purification, and conditioning. Their expertise extends to hot water systems, water tanks, and pump maintenance. Committed to excellence, their certified technicians ensure pristine water quality and optimal system performance for every client.

Happy Labor Day from National Water Service! 🇺🇸This Labor Day, we’re celebrating the hardworking people who keep our hom...
09/04/2026

Happy Labor Day from National Water Service! 🇺🇸

This Labor Day, we’re celebrating the hardworking people who keep our homes, businesses &communities running every day, including our own dedicated team!

Our office will be closed Monday, September 7th so our team can enjoy the holiday with their families.

💧 But water emergencies don’t take holidays & neither does our emergency service.

If you have an emergency with your well pump, plumbing, or water system, we’re still available.

📞 Emergency Service: 301-854-1333

From all of us at National Water Service, have a safe and relaxing Labor Day!

💧 Installation of the Day!This Maryland home had several water issues to tackle, so we built a system to address this fa...
09/03/2026

💧 Installation of the Day!

This Maryland home had several water issues to tackle, so we built a system to address this families specific water wants & needs!

✓ Chemical feeder for acidic water & pH control
✓ UV light for bacteria protection
✓ Whole-house sediment filtration
✓ Water softener for hard water buildup
✓ New pressure tank
✓ Mechanical room replumb
✓ And more

Every home & every well is different. The right solution starts with understanding the water and designing the system around it.

📞 301-854-1333
🌐 NationalWaterService.com
✉️ [email protected]

How can we be of service to you?

💧 Seeing blue-green stains around your sinks, tubs, or fixtures? Your water may be too acidic.Here in The DMV, our rain ...
09/02/2026

💧 Seeing blue-green stains around your sinks, tubs, or fixtures? Your water may be too acidic.

Here in The DMV, our rain and groundwater tend to be naturally acidic, and many homes with private wells can experience low-pH water. Over time, acidic water can contribute to blue-green staining, corrosion of copper plumbing, pinhole leaks, and premature damage to fixtures and equipment.

The good news? It’s treatable.

National Water Service can test your water, determine its pH, and recommend the right solution to help neutralize acidity and protect your home.

💧 Water Testing
🔧 pH & Acid Neutralization
🏠 Whole-Home Water Treatment
🚰 Well Pump & Plumbing Services

Maryland water is what we know. We’ve been treating it since 1979.

📞 301-854-1333
🌐 NationalWaterService.com

How can we be of service to you?

💧⭐ TESTIMONIAL TUESDAY ⭐💧Owning a home with a well and water treatment system can feel a little overwhelming when you’re...
09/01/2026

💧⭐ TESTIMONIAL TUESDAY ⭐💧

Owning a home with a well and water treatment system can feel a little overwhelming when you’re new to it. That’s why we believe great service means more than just fixing a problem, it means helping our customers understand their systems, too.

Grace in Germantown, MD recently had Daniel out for an annual well and water system checkup. Daniel took the time to explain how everything worked, what to watch for, and also repaired a leaking pipe connected to the well system.

Grace described Daniel as “knowledgeable and patient” and her overall experience with National Water Service as “excellent” — from the friendly scheduling process to the courteous, timely and skilled service at her home.

Thank you, Grace, for the wonderful reviewl! 👏💧

Need your well or water treatment system checked?

📞 301-854-1333
🌐 nationalwaterservice.com

🔥 Before & After: Double the Hot Water Upgrade!Another clean installation completed by National Water Service!Our Master...
08/31/2026

🔥 Before & After: Double the Hot Water Upgrade!

Another clean installation completed by National Water Service!

Our Master Plumber replaced this home's aging water heaters with two new 75-gallon natural gas, atmospheric-vent water heaters, providing a total of 150+ gallons of hot water capacity.

For a home with significant hot-water demand, having the correct, professionally installed equipment, makes all the difference!

✅ Twin 75-gallon natural gas water heaters
✅ Atmospheric vent
✅ New expansion tanks
✅ Professional plumbing and installation
✅ Installed by a Master Plumber

Whether you need one water heater or a system designed for a high-demand home, National Water Service can help determine the right solution.

📞 301-854-1333
🌐 nationalwaterservice.com
📧 [email protected]

How can we be of service to you?

💧 Your well worked hard this summer. Is everything still working like it should?Between lawn watering, summer guests, ir...
08/28/2026

💧 Your well worked hard this summer. Is everything still working like it should?

Between lawn watering, summer guests, irrigation, pools and everyday household use, summer can put extra demand on a private well and water treatment system.

As we head toward fall, watch for:

⚠️ Lower or fluctuating water pressure
⚠️ Sediment or cloudy water
⚠️ New staining or discoloration
⚠️ Changes in taste or odor
⚠️ A well pump that seems to run more frequently

Small changes can sometimes be the first sign of a well, pump, pressure tank or water treatment issue.

National Water Service has been helping Maryland, Washington, D.C. and Northern Virginia homeowners with their water since 1979.

📞 301-854-1333
🌐 nationalwaterservice.com

How can we be of service to you?

💧 August is National Water Quality Month! 💧Water affects nearly every part of your home, from the water your family drin...
08/27/2026

💧 August is National Water Quality Month! 💧

Water affects nearly every part of your home, from the water your family drinks & cooks with to your plumbing, fixtures & appliances.

Good water quality can mean:

✓ Better-tasting water
✓ Protection for your family’s health
✓ Longer life for your plumbing & appliances
✓ Reduction of unwanted or harmful contaminants
✓ Peace of mind about what’s coming from your tap

Whether your water comes from a private well or a public water supply, knowing what’s in it is the first step.

At National Water Service, we’ve been helping families throughout Maryland, Northern Virginia & Washington, D.C. test, treat, and improve their water for decades.

💧 Test it. Know it. Treat it.

📞 301-854-1333
🌐 nationalwaterservice.com
✉️ [email protected]

💧 Another Complete Water Treatment Install!This project is a great example of what we mean when we say complete water tr...
08/26/2026

💧 Another Complete Water Treatment Install!

This project is a great example of what we mean when we say complete water treatment. Our team designed and installed a system to address multiple water-quality concerns throughout the home.

This installation included:

✅ Whole-house sediment filtration
✅ Spruce AiRaider for radon-in-water remediation
✅ Pedrollo pressure booster pump
✅ Ultraviolet light for bacteria protection
✅ Water softener for hard water
✅ ProGlass treatment for heavy iron & turbidity
✅ Grundfos solution/chemical feeder for acidic water & pH control
✅ Extensive replumbing of the mechanical room
✅ And more!

Every home & every water supply is different. That's why we don't believe in a one-size-fits-all approach. We test the water, identify the problems, discuss with you your water wants & needs & design the treatment system around what the home actually needs.

📞 301-854-1333
🌐 nationalwaterservice.com

How can we be of service to you?

💧⭐ TESTIMONIAL TUESDAY ⭐💧When you’re having a problem with your well, sometimes the biggest relief is simply knowing you...
08/25/2026

💧⭐ TESTIMONIAL TUESDAY ⭐💧

When you’re having a problem with your well, sometimes the biggest relief is simply knowing you called the right people.

Bob in Gaithersburg, MD recently called National Water Service with a well issue. From the first phone call, our team helped put his mind at ease. Our technicians arrived ahead of schedule, diagnosed the problem, and explained his options for correcting a chafed wire issue in the outside well pump pipe.

His words say it best:

“Very good kind, honest and courteous service from start to finish.”

And we especially appreciated this part:

“All is ‘well’ (so to speak)!” 😄💧

Thank you, Bob, for trusting National Water Service and for recommending us to your friends!

⭐ Honest advice
⭐ Experienced technicians
⭐ Well pump service & repair
⭐ Water treatment
⭐ Plumbing

Over 47 years of pure, quality service.

📞 301-854-1333
🌐 nationalwaterservice.com

💧 We’ll Go to Any Length, or Depth, for Better Water for our Customers!!Every home is different, and sometimes the right...
08/24/2026

💧 We’ll Go to Any Length, or Depth, for Better Water for our Customers!!

Every home is different, and sometimes the right water treatment solution isn’t going in a basement, utility room, or garage.

For this customer, it meant climbing down into a pit in the front yard to install a solution/chemical feeder designed to help correct low pH & acidic well water.

Acidic water can be tough on a home’s plumbing system, contributing to corrosion of pipes, fixtures, and water-using appliances over time. The right treatment system can help neutralize that acidity and protect the home’s plumbing.

At National Water Service, we don’t believe in one-size-fits-all water treatment. We design and install systems around your water, your home, and your needs, even when the installation location is a little unconventional.

Have questions about your well water or pH? We can help.

📞 301-854-1333
🌐 nationalwaterservice.com

How can we be of service to you?

Address

2878 Daisy Road
Woodbine, MD
21797

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 4pm
Saturday 7am - 4pm
Sunday 7am - 4pm

Telephone

+13018541333

Website

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