Radon is the second leading cause of lung cancer after smoking and the number one cause of lung cancer in non-smokers. The public tends to think of lung cancer as occurring in only smokers, but that is far from the truth. Lung cancer in non-smokers is the 6th leading cause of cancer deaths in the United States. Radon is not only present in the air, but your water as well. Radon in your water increases the levels in the air and puts you and your family at risk. Call National Water today to have your water tested.

For more information, check out this link: https://www.verywellhealth.com/radon-and-lung-cancer-2248978

One of our most important jobs is emergency response. Whether we are dealing with current or new customers, businesses or home warranty company clients, if you have no water or low pressure we are here to help, 7 days a week, 365 days a year.
Last week we had many no water calls. We replaced well pumps, water logged pressure tanks, broken control boxes for a constant pressure system and a few thousand feet of pipe and wire.
If you have No Water please call us 301-854-1333 or email info@nationalwaterservice.com!


Our award winning well pump division has been installing and maintaining well pumps for over 30 years. Using only top quality well pumps, conduits, casing, wire and more, we are prepared for any well pump or well water situation! 

As winter roars its ugly head, it is important to ensure your well pump and water treatment systems are working properly to get you through the freeze!

Today, we replaced a very old well pump with a new Grundfos well pump for a very happy new customer in Gaithersburg, Maryland.

She awoke this morning to No Water in her home. Our Emergency Well Pump Division was at her home as the sun was rising to diagnose the issue. Once we pulled the pump out of the well, the problem became apparent, a broken wire and a rusted out hole in the pump. A new pump and wire were installed, water has been restored to her home and this Gaithersburg, MD resident is ready for winter! 


Fixing or replacing a well water pump usually involves our pump truck or an “upsy-daisy” to pull out the pump and locate the problem. This can be done with minimal equipment and a small crew. However, sometimes, fixing or replacing a well water pump involves a lot of parts and tools and climbing into a small pit to address the issue. The customer was so happy with our preparation and work ethic that he came out to watch and thank us personally.


Back in the early 1900’s when this well was dug, it supplied water to three different properties. In 1969, the properties were combined into one and a municipal water line was connected to the pitless adaptor of the well. The well and pump were subsequently abandoned and municipal water was used for the property.

Our customer purchased the property in 2016 and asked us to remove the municipal water line and re-build the well. We installed a new pump, an in-well pressure tank and re-built a hand pump for use both in the buildings on the property as well as for irrigation.

The rebuilt well, pitless, pump, pressure tank, hand pump, well cap, casing and conduit will allow unlimited flow of water for all our customers needs for years to come.

In addition, we found an intact, late 1800’s whisky bottle about 5 feet underground next to the well.

Cold weather is hard on everything, and well pumps are no exception. Today we replaced a well pump for a new customer in Clarksville, MD. We removed her old pump and replaced it with a new Grundfos variable speed pump.

A variable speed pump also gives the home owner the option for a Constant Pressure System. Constant Pressure systems gives the consumer the ability to control the pressure of your water at all times, while ensuring you never run out, no matter how many people are using the water at once!


A professionally installed well water pump could last 20+ years with proper maintenance to the well cap, casing and conduit. Anything from micro holes to large gaps can form in old and rusted well casings, this along with broken caps from getting hit by a lawnmower can allow bacteria and other contaminants into the water. When installing a new well casing, conduit and cap we always ensure that it is visible and easily accessible for repairs.


While we always recommend that a well is easily accessible, sometimes that is not always the case. For this no water call from a new customer in Montgomery County, Maryland, we had to get creative. The well was covered by a prized, beloved tree. We were able to use our hoist truck, our “upsy-daisy” and a little National Water ingenuity to preserve the tree while at the same pulling the well pump, fixing the problem and returning water to our very happy customers home!

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!