National Water Service

• secret squirrel
  
  
  (October 24, 2022, 6:20 pm)

  Fantastic installation. They moved the existing pressure tank and softener from a closet area to laundry room. Now all the water treatment equipment is in one location. Heather was excellent and explained how to use and maintain the system.
  Thank you for an awesome experience.

• Keith Sopher
  
  
  (June 26, 2022, 10:38 am)

  We would give more stars if we could. We had an emergency on a Sunday morning and Dave was AMAZING! He answered the phone right away and was able to fix the problem that morning. He was kind and helpful and ended up saving us money! We highly recommend National Water Service. An easy FIVE STARS.

• Jamie Dalal
  
  
  (May 16, 2022, 10:11 pm)

  Highly recommend National Water Service! I had no idea what we were getting into when we bought a home with a well and the water tested high for radon. Heather and David at National Water Service were beyond helpful with our inquiries about how to remove radon from our water. Excellent and timely communication via phone and email. Detailed explanation of all options for radon water mitigation and what would be best suited for our well. Site visits both before and after installation. On the day of install, the team arrived on time and were polite, knowledgeable, hard working and set our system up perfectly. At the end of install, the entire team stood in our basement and walked us through the new system. They answered every question, sometimes twice, and when they left we felt comfortable knowing what to do in case of an emergency, how the radon mitigation system works and what to monitor for, when to add salt to our conditioner and how to change our sediment filter. David came back at our house after install, checking the system, again answering any question, and then checked our water for radon and we are happy to know there is none. I highly recommend National Water Service for all your well needs. I will even be using them to install waterers for our horses soon. Do it right the first time, use National Water Service.

• Brian Connolly
  
  
  (February 1, 2022, 12:02 pm)

  “We lost our water on Sunday and could not reach our regular plumber. I searched online and found National Water Service along with several other companies. I based my decision to select them based on their customer reviews. My initial contact with Dave was met with an eagerness to help try and restore our water ASAP. Our system is electronic and he guided me through some procedures to attempt a “reset” over the phone ( BTW all done without getting $$ upfront) After several attempts it appeared that the mechanical pump and/or the control unit may have failed and they would have to schedule the repair for the next day as it was 6PM Sunday evening and the pump in my system was not a common pump and had to be picked up at a warehouse. They arrived Monday with the pump and controller but took the time to troubleshoot and diagnose the root cause (rather then just replace the pump and controller. ) The pump was tested and verified bad. Daniel and crew proceeded to replace the pump, tested the system after repair and cleaned up all work areas. He also made sure our lines were clear of mud/dirt/minerals that are often an issue after a well pump failure. All of my interaction from initial contact to the crew installing our pump were polite, professional and empathetic (a rare combination these days!) National Water Service will be our first call whenever we have a plumbing need in the future. "

• Heidi
  
  
  (June 20, 2018, 2:28 pm)

  I just had a whole house water filtration system and RO system installed along with a city-water sump pump backup system. I am very impressed with the quality of the work that the NWS team completed at my house. The sales/financing + installation + follow-up was all perfect and I'm so glad I went with this company. I look forward to many years of good quality water and easy maintenance thanks to National Water Service!

National Water Service

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National Water Service | 7249 Mink Hollow Rd, Highland, MD 20777

2022-11-09 National Water Service. Water Treatment Services - For 40 years, National Water Service has been installing and servicing complex water systems in Homes, Restaurants, Hotels, Hospitals, Shopping Centers & more all over the DC, Baltimore & Frederick Metro areas.