Delivering dependable, high-quality water solutions to homes and businesses throughout Montgomery County for more than 47+ years.
National Water Service provides professional water treatment services in Montgomery County, MD. Serving both public water and private well systems, we help homeowners address common water quality concerns such as hardness, taste, odors, and plumbing-related issues with customized treatment solutions tailored to local water conditions.
Montgomery County includes a mix of urban, suburban, and semi-rural areas, which means water quality concerns vary widely from home to home. While municipal systems meet safety standards, many water quality issues develop after water enters the property — due to plumbing materials, aging infrastructure, or private well conditions.
Water quality in Montgomery County varies depending on whether your home is supplied by a municipal system or a private well. While public water systems are regulated and treated to meet safety standards, many water quality issues originate after the water enters the home — through aging plumbing, fixtures, pressure systems, or environmental factors.
Homes in Montgomery County may experience differences in mineral content, hardness levels, taste, odor, or disinfectant residuals depending on location, water source, and infrastructure age. Private well owners face additional challenges, as groundwater conditions can vary significantly even between neighboring properties.
Because of these variables, water testing is the only reliable way to determine what’s actually in your water and what Water treatment — if any — is appropriate. Effective water treatment in Montgomery County starts with understanding your specific water conditions, not relying on assumptions.
Montgomery County includes a mix of urban, suburban, and rural areas, which means water quality concerns are not one-size-fits-all. Common factors that influence water quality in Montgomery County homes include:
Hard water and mineral buildup, which can reduce appliance efficiency and leave scale on fixtures
Disinfectant taste or odor, often noticeable in municipal water supplies
Lead risk in older homes, due to legacy plumbing materials
Iron or manganese staining, particularly in well-supplied areas
Low pH or corrosive water, which can damage pipes and leach metals
Bacteria or microbial risks in private well systems
Even when water meets regulatory standards, these conditions can affect comfort, plumbing lifespan, and overall water quality inside the home
Private wells and aging plumbing systems can introduce bacteria or microorganisms that require testing and disinfection.
Minerals such as calcium and magnesium can cause scale buildup, cloudy water, and reduced soap effectiveness.
These contaminants can cause staining, metallic taste, and clogged fixtures.
Low-pH water can corrode plumbing and fixtures over time.
Urban development and stormwater runoff can influence source water quality over time.
We test for bacteria, hardness, pH, minerals, sediment, and other locally relevant contaminants.
You receive straightforward results with honest recommendations — no pressure, no guesswork.
Systems are selected based on your water source, home size, and usage needs.
Installed by licensed professionals with optional maintenance plans available.
National Water Service provides a full range of water treatment solutions for Montgomery County homes and businesses, including:
Every system is custom-built based on test results, not assumptions.
Bethesda
Gaithersburg
Rockville
Germantown
Silver Spring
Potomac
Damascus
Clarksburg
Poolesville
And surrounding communities
Yes. Many water issues come from home plumbing, fixtures, or mineral content — not the public supply.
Absolutely. Well water often requires filtration, softening, and disinfection based on groundwater conditions.
Private wells should be tested annually; city water users benefit from testing when taste, pressure, or staining issues appear.
Yes — we provide complimentary in-home water testing for Carroll County residents.
