Water Filtration · Clarksburg, MD

Water Filtration & Water Softeners

Cleaner water from every tap.

Hard water, bad taste, or odd smells? We install, repair, and maintain whole-house water filtration, water softeners, reverse osmosis, and under-counter systems across Clarksburg and Montgomery County, so every tap pours cleaner, healthier water. Searching for a water filtration system near me? You found your local crew.

Whole-house & under-counterSofteners & reverse osmosisLicensed & insured
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Cleaner water
Sized for your home
The basics

How water filtration works

Water filtration improves the water coming into your home by removing what you do not want in it. A whole-house system treats every tap at the point where water enters, while under-counter and reverse osmosis units polish drinking water right at the kitchen sink. A water softener tackles hard water specifically, swapping the calcium and magnesium that cause scale and spots for softer water that is easier on your skin, fixtures, and appliances. The right setup depends on what is actually in your water, which is why we test first, then size and install a system built for your home.

What we do

Water filtration services

Installation, repair, and maintenance for softeners, reverse osmosis, whole-house, and under-counter systems.

Water Filtration Installation

Whole-house and point-of-use systems installed and sized to what your water actually needs.

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Water Filtration Repair

Leaks, pressure drops, bypassed systems, and failed parts diagnosed and fixed fast.

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Filtration Maintenance

Filter changes, sanitizing, and tune-ups that keep your system working and your water clean.

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Water Softeners

Installation, repair, and salt-system service to end hard water scale, spots, and dry skin.

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Reverse Osmosis

Crisp, great-tasting drinking water from a reverse osmosis system at your kitchen sink.

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Under-Counter Units

Compact under-sink filtration for clean drinking and cooking water without the bottles.

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How it works

From source to tap

Four steps to cleaner water, matched to what is actually in yours.

1

We test your water

We find out what is in your water: hardness, sediment, taste, and odor.

2

We size the system

We match the right filtration or softener to your water and your household use.

3

We install it clean

Whole-house at the main, or point-of-use at the sink, installed neatly and correctly.

4

We keep it running

Scheduled filter changes and maintenance so your water stays clean for years.

Catch it early

Signs you need water filtration

If any of these sound familiar, a quick water test will tell us exactly what to fix.

Spots and scale on fixtures

White, crusty buildup on faucets, glasses, and shower doors is classic hard water.

Dry skin and dull hair

Hard water leaves a film that dries out skin and hair even after a good shower.

Bad taste or odor

A metallic, chlorine, or rotten-egg taste or smell means something worth filtering out.

Cloudy or discolored water

Sediment, rust, or cloudiness points to filtration your home is missing.

Stiff laundry and faded colors

Hard water makes detergent work harder and wears fabrics out faster.

Appliances failing early

Water heaters, dishwashers, and ice makers fail sooner when scale builds up inside.

Tired of hard water? Let's get your water tested.

Know your options

Types of water filtration

We help you pick the right system for your water, your home, and your budget.

Whole-House Filtration

Treats every tap at the point of entry, for cleaner water throughout the house.

Water Softener

Removes the minerals that cause hard water scale, protecting your fixtures and appliances.

Reverse Osmosis

Multi-stage filtration for the purest drinking and cooking water at the kitchen sink.

Built for Maryland water

Why this matters here

Much of Montgomery and Frederick County has hard water, and many homes on private wells deal with extra sediment, iron, or sulfur. Clarksburg, Damascus, and Poolesville homeowners especially notice it. The right filtration or softener protects your plumbing and appliances and makes everyday water better to drink, cook, and bathe in.

  • Get your water tested so you treat the real problem
  • Match the system to your water, not a one-size-fits-all box
  • Change filters and service softeners on schedule
  • Protect your water heater and appliances from scale
Annual peace of mind

Add it to a membership

Our membership includes annual inspections and reminders, so your filters get changed and your system gets serviced on time.

See Membership Plans
The people in your home

A crew you are glad to let in

Every technician is part of our own trained, background checked team, not a subcontractor. We show up on time, explain your water and your options in plain language, and leave your home clean.

installing sewer line
From our neighbors

What your neighbors say

4.8
Based on 542 Reviews
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Gabriel B.
August 27, 2026

Katie and the Clarksburg Plumbing team were phenomenal. Katie came highly recommended, and it could not have been a better choice. During an emergency plumbing issue at one of the buildings we service, her team came right out and made it happen. It was a complicated situation, but they handled it from start to finish with great responsiveness, professionalism, and patience throughout the entire process. We greatly appreciate their help and highly recommend them.

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Martin H.
August 27, 2026

The plumber from Clarksburg Plumbing who worked on my broken gas hot water heater was John Brown. John is an amazing plumber. He is extremely energetic, very efficient, has amazing knowledge about plumbing, and is very honest. He is also very friendly, considerate, and took the time to answer all my questions. He diagnosed the problem quickly (which was a defective burner assembly). Then when I showed him the manufacturer's warranty, he took the initiative to immediately call the manufacturer and order all the necessary parts (which were free under the warranty). When the parts were delivered, he made sure to show up the next day and install the parts. As we talked throughout his time in the house, I could see that he has very deep knowledge of plumbing, which gives me confidence that his work is top quality. I also had a problem with very high water pressure in the house. The pressure regulator had to be replaced. John, working with Maddie, did a great job in fixing that as well. After the work, everything was cleaned up completely.

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Marina W.
August 26, 2026

The best plumbers in the Bethesda area! We have worked with over 4 companies and none could figure out our issue until we called Clarksburg. They are honest, flexible and communicative. Wonderful experience from start to finish.

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Douglas F.
August 26, 2026

John and Maddy were excellent! Professional and beyond. Not only did the effectively fix our kitchen leak, but gave solid recommendations to fix other problems in advance. Appreciate them! Arrived on time, came quickly . We are definitely using this company for the rest of our remodeling planned. Thank you again. Doug Frankel Cost was no issue. They stand behind their work as they did today

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Kevin
August 20, 2026

Knowledgeable technicians who explained everything in detail and did a great job installing my new water heater.

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Lynn A.
August 18, 2026

We had our first experience with Clarksburg Plumbing & now we're sold! Charlie replaced our powder room toilet & did a great job. We moved to our house 3 years ago (& needed a new plumber) so we're happy to a great plumber now. Highly recommend!

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Stephanie B.
August 13, 2026

Booked an apt with Clarksburg plumbing at 7am and by 9am they were at my house. Seth was a great tech that explained anything he was doing and answered my questions. would use Clarksburg plumbing again.

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Susan F.
August 11, 2026

Highly recommend John Brown from Clarksburg Plumbing LLC! Yesterday John flushed and descaled our tankless water heater. We've gotten used to waiting and waiting for service people. That's not the case with John. He arrived pleasantly early for both the initial visit (for a no-cost estimate) and for the actual service call. He was personable, knowledgeable, and very patient with our many questions. He really helped us understand the ins and outs of this new-to-us technology of tankless water heaters. We're already recommending him to our neighbors!

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Judith
August 10, 2026

John and Maddie were professional and customer focused. They completed several plumbing projects efficiently and verified my satisfaction with the work. John diagnosed a plumbing problem for future remediation. Great people and company.

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Daniel J.
August 7, 2026

I had Clarksburg Plumbing come out for a minor home plumbing repair. Seth and Maddie were on time, friendly, and professional. They provided a free estimate, and I went ahead with the repair. The repairs took just under 2 hours and I was completely satisfied with the service. I will definitely use Clarksburg Plumbing again in the future. Thanks, Seth and Maddie!

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Dennis D.
August 7, 2026

We had a very good experience with Clarksburg this year. A new fresh water pipe from the street and cleaning the waste pipe. From Brady in the office to John Brown and his team on site (Franklin and Chris) everything went smoothly, successfully, and on time. Would highly recomnend!

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Ryan
August 7, 2026

Charlie S. was efficient and friendly. He also answered some of my plumbing questions which I greatly appreciate. I will be using Clarksburg Plumbing in the future.

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Lisa W.
August 7, 2026

I recently used Clarksburg Plumbing for a condo repair of my main water turnoff valve and my outside hose bib. It required coordination with DC Water and the condo, and Clarksburg was extremely helpful, professional, and patient in the process. They came out a few times to evaluate and troubleshoot the issues, and then ultimately performed/made the repairs. Garrett and John Brown were the first to help, both very kind, knowledgable and highly skilled, and then Pablo (along with apprentice Tevon) made the final repairs. Not only did they do a great job, explaining everything to me in the process and checking after the water was restored to the condo, they also helped out one of the other owners that was having a sudden, luckily minor issue, as well. It’s a relief to know that I finally have a plumbing company that I can rely on for any future issues.

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J C.
August 3, 2026

John Brown & Maddie did a great job with installing our new sump pump and battery backup--very informative, patient and thorough.

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Daniel C.
August 3, 2026

Many thanks to John and Maddie for their excellent work and cheerful attitude.

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Ev Z.
August 3, 2026

Pablo was responsive & efficient on a late Sunday evening. Thank you

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Joye K.
July 31, 2026

We had a fire at our house 3-Jul-2025. Our contractor used Clarksburg Plumbing for all of our plumbing needs as we rebuilt our house. Pablo was with us from the beginning until all work on the house was completed a year later. Pablo was the lead plumber from Clarksburg Plumbing. He worked on the plumbing rough-in in December through February this past winter in bitter cold through the end of July 2026 when work was finally completed. Pablo quietly does his work. It’s clear that he is very skilled but he is not arrogant in any way. Rather, he is very engaging, takes suggestions under consideration and employs them as warranted, and is always kind even when I interrupt his work. Pablo represents Clarksburg Plumbing very well. It was my pleasure working with Pablo.

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Prabhu P.
July 30, 2026

John & Maddie were great to get me scheduled for a potable water replacement

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Erin M.
July 30, 2026

Properly identified the source of my leak after multiple other plumbers/companies couldn’t figure it out. Were thorough in explaining what they were doing, how they arrived to their determination, and gave advice on how to proceed with next steps that were outside their scope of operations. Thanks Pablo and Tevon

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Jason R.
July 28, 2026

So grateful for you all, after 10 years and multiple plumbers your techs Garrett and Brady found the problem in 10 mins. Professional, friendly, knowledgeable, and we are more than satisfied with the work. Great company, great employees. We have a plumber now!

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Ajay P.
July 23, 2026

We had a severe blockage in our kitchen sink drain, causing water to back up into both the sink and the dishwasher. Seth and Brady arrived on time, quickly identified the issue, and did an excellent job clearing the kitchen drain. They also fixed the dishwasher drain line, which is now working perfectly. They were professional, efficient, and courteous throughout the process. I highly recommend them to anyone needing plumbing services.

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Abbie C.
July 22, 2026

Recently had an issue with my hot water heater in the restaurant I worked at. Clarksburg plumbing was quick and efficient and I was lucky enough to get John and Maddie as my techs! They were knowledgeable and helpful and fixed the issue in no time. I can’t recommend Clarksburg Plumbing enough and especially John and Maddie. They were honestly wonderful.

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Anna F.
July 22, 2026

John and his assistant, Maddie, replaced an outside water valve and reviewed plumbing in a bathroom. They did excellent work, gave good advice and were friendly and nice. We were pleased with the work and will contact them at Clarksburg Plumbing for any plumbing needs in the future.

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L C.
July 20, 2026

John was very knowledgable and provided all the details I needed to make my decision on what I wanted. Matty give me the exact estimates to consider. They were very curteous and professional. Thank you.

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Chantell P.
July 20, 2026

John and Maddie arrived on time and were professional and kind! All issues were resolved without issue! Highly recommend!

Good questions

Water filtration FAQ

What homeowners ask us most about filtration and softeners.

They solve different problems. A softener removes the hardness minerals that cause scale and spots, while a filter removes sediment, taste, odor, and contaminants. Many homes benefit from both. We test your water and recommend only what you actually need.

Reverse osmosis pushes water through a fine membrane to remove dissolved solids, leaving very pure, great-tasting water. It is usually installed under the kitchen sink for drinking and cooking water.

It depends on the system and your water, but most point-of-use filters are changed every 6 to 12 months and whole-house cartridges on a similar or longer cycle. We set you up with a schedule and can handle it for you.

Yes. Softer, cleaner water is gentler on skin and hair and prevents the scale that shortens the life of water heaters, dishwashers, and faucets.

Absolutely. We repair and maintain filtration systems and softeners, including ones we did not install, with filter changes, sanitizing, and part replacement.

We recommend it. A quick water test shows hardness, sediment, and what is causing taste or odor, so we size the right system instead of guessing. This is especially important on well water.

Yes. We are fully licensed and insured, every technician is background checked, and we serve Clarksburg, Gaithersburg, Germantown, Damascus, and the surrounding Montgomery and Frederick County area.

Treat it as urgent. Leave the home, do not flip switches or light anything, and call your gas utility’s emergency line from outside, then call us. We handle gas line leaks and repairs 24/7.

Better water starts here

Cleaner water starts here.

Let's Flow.

Hard water, bad taste, or a system that needs service? Book online or call and we will test your water and size the right filtration or softener for your home.

Book online

Let's get started

(301) 972 2223

Available 24/7 for Clarksburg and beyond

Book a service