For over 45 years, National Water Service has been the trusted provider of water treatment, plumbing, and well pump services for residential homeowners and commercial properties throughout Maryland, DC, and Northern Virginia. Our team specializes in water filtration, purification systems, and plumbing solutions that ensure clean, safe, and reliable water for homes and businesses. Whether you're a homeowner improving your water quality or a commercial business managing complex plumbing systems, we deliver expert service tailored to your specific needs.
Ensure Clean, Safe Water for Your Property
Our water treatment services are designed to improve the quality of your water, whether you’re looking to filter, purify, or soften it. We specialize in providing tailored solutions such as reverse osmosis systems, water softeners, whole-house filtration systems, and more. Whatever your water treatment needs are, we provide efficient and reliable systems to improve the health and safety of your water supply.
For more information on Water Treatment Services, please visit our Water Treatment Section.
Reliable Plumbing Solutions for Every Property
Our plumbing services cover all aspects of plumbing and mechanical systems for both homes and businesses. Whether you need repairs, installations, or regular maintenance, we ensure your plumbing system runs smoothly. From fixing leaks and installing pipes to addressing complex drainage issues, our team is ready to tackle all your plumbing challenges.
For more information on Plumbing & Mechanical Services, please visit our Plumbing Section.
Efficient Well Pump Solutions for Reliable Water Supply
As experts in well pump systems, we offer comprehensive services to install, maintain, and repair well pumps for both residential and commercial properties. Our experienced technicians ensure your well pump operates efficiently, providing a consistent and reliable water supply for your home or business.
For more information on Well Pump Services, please visit our Well Pump Section.
Responsive
Knowledgeable
I can’t say enough about National Water Service. The team is very knowledgeable about the water treatment business. Great service, courteous techs, and on time for appointments. In emergencies NWS has always been there for me. Thank you and keep up the good work. I would highly recommend!!!🤩🤩🙌🏽
Cost-Effective
I had a leak in my whole house water filtration system that no plumber could figure out. Enter Peter and Christian from National Water Service, who diagnosed the problem in short order AND came up with a cost effective resolution! They were knowledgeable, professional, personable and great to work with! Thank you!
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National Water Service has been providing residential & small commercial water treatment, plumbing & well pump services for over 45 years. We specialize in water treatment, filtration & purification solutions as well as general plumbing to ensure clean, safe water for our customers in Maryland, DC & Northern Virginia.
Mon - Thurs
7:00am - 5:00pm
Friday
7:00am - 4:00pm
Sat - Sun
Emergency Service Available
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