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Underground Plumbing · Clarksburg, MD

Underground Plumbing in Clarksburg, MD

Sewer, water & drain experts.

Drain cleaning, sewer line repair, trenchless replacement, hydro-jetting, camera inspections, leak detection, and water lines, the deep, difficult plumbing most companies avoid is exactly what we do best. Across Clarksburg and Montgomery County, we fix what is underground while protecting what is on top.

Trenchless optionsCamera diagnosis firstLicensed & insured
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Underground experts
Sewer, water & drains
What we do underground

Underground plumbing services

The deep, technical work that keeps your home flowing. Tap any service to see how we handle it.

Drain Cleaning

Fast, lasting clearing of slow and clogged drains, not just a quick snake and run.

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Sewer Line Repair & Replacement

Camera diagnosis, spot repairs, and full sewer line replacement built to last for decades.

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Trenchless Sewer Repair

Repair or replace your sewer line with little to no digging, protecting your yard and driveway.

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Hydro-Jetting

High-pressure water that scours grease, scale, and roots from the inside of your pipes.

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Sewer Camera Inspection

We send a camera down the line so you only pay to fix what is actually wrong.

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Leak Detection

Pinpoint leak detection for water and sewer lines, and pools too, with no guesswork or random digging.

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Water Line Repair & Replacement

Repair or replace your main water line, including trenchless options that spare your yard.

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Excavation & Site Work

Careful digging and site work for sewer, water, and gas line projects, with minimal disruption.

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Don't see it?

Repiping, gas lines, vent stacks, and more underground work. If it runs beneath your home, we handle it.

Call (301) 972-2223
A personalized experience

Honest help, start to finish

You deserve a plumber who listens, tells you the truth, and respects your home. We treat every house like our own.

1

We inspect & assess

We find the real problem and explain it in plain language, no scare tactics.

2

We give a fair estimate

Upfront, flat pricing on cost and time, so you approve everything before we start.

3

We deliver on our promise

On time, done right, and your home left better than we found it.

Why homeowners call us

The crew that does the hard digs

Underground work is where experience really shows. Our own trained, background checked crew handles sewer and water line excavation, trenchless repairs, and camera diagnostics every day, and we put your yard back the way we found it.

4.9

Over 500 five-star reviews from your neighbors
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From our community

What your neighbors say

4.8
Based on 573 Reviews
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Christopher D.
October 5, 2026

Seth did an excellent job!

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Riadh Z.
September 30, 2026

Tyler was great professional and knows what he’s talking about

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Natalie R.
September 29, 2026

I had a great experience with Tyler when he came out to replace our toilet flushing system. From start to finish, Tyler was incredibly courteous, professional, and knowledgeable. He walked me through what needed to be fixed, answered all my questions patiently, and completed the job efficiently. It’s rare to find such high-quality service and attention to detail. Everything is working perfectly now, and he left the work area completely clean. I highly recommend Tyler for any plumbing needs!

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Todd O.
September 28, 2026

Tyler was polite and professional. Satisfied.

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Robert B.
September 25, 2026

John and Maddy showed up on time and did a superb job. Very friendly and informative

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Jan B.
September 25, 2026

Tyler is great! I am very satisfied with his plumbing work.

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william B.
September 24, 2026
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Catherine J.
September 24, 2026

John and Maddie were fantastic. They fixed my original issue and then helped me out with a leaky shower and answered all my questions. I highly recommend both John and Maddie!

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Pamela B.
September 21, 2026

Absolute best plumbers I have ever used. Needed them a few times recently and each time they were so professional, kind and resolved each problem the first time around. This last issue took them several hours to fix. They explained everything along the way and gave a very fair price for a lot of work. They also work very cleanly! I will never use another plumber! I wanted to add a new review but I could not so I am editing my previous one. I had to use Clarksburg Plumbing again today and like last time, they were exceptional. I was fortunate enough to have John and Madeleine as my service technicians. I will always request them going forward. They are kind, professional and knowledgeable! I am sure the company knows how fortunate they are to have them as part of their team!

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John S.
September 18, 2026

We thank Clarksburg Plumbing again for superior, high quality and friendly service! ----- Clarksburg Plumbing visited us last week to repair an external spigot that had been leaking. The work involved creating a little inside access panel. Within and without, a nice, neat job by Charlie and his understudy apprentice, Chris. Problem solved and happy campers here! ----- UPDATE: Plumber John Brown presented himself on time and got right to work replacing my Mom's ancient leaky kitchen faucet with a new store-bought one that I provided. During the process, Mr. Brown detected and showed me two other problem areas contributing to the water leaks: a cracked drain pipe and then rusted threads on the sink trap. He efficiently and expertly repaired all three elements to our full satisfaction. Plus, John is a super nice guy, completely honest and classy enough to laugh at all my corny jokes! The next time you need any plumbing work in your home or business, I strongly endorse John Brown and anyone on the Clarksburg Plumbing team! UPDATE 2: John and his understudy Maddie visited, and quickly solved the problem of a pinhole leak in copper tubing leading from our hot water heater. He advised us on other plumbing needs, for which we have scheduled and will otherwise follow-up. Thank you Clarksburg Plumbing for your top quality people - John Brown in particular - and performance.

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John H.
September 17, 2026

Their work was excellent. The problem solved a difficult situation with a water pipe leak and worked hard to implement it. Very grareful for the work of Franklin, Noah, Cotton, Markell, Tevon, Jason, Deybis

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G M.
September 16, 2026

Tevon, Noah, Markell, and Morrow were sent by Clarksburg Plumbing LLC to repair an outside broken waterline They arrived at the appointed hour and completed the work in about 3 hours. I was very impressed with them and I would like to recommend all four of these very professional and friendly technicians. Clarksburg Plumbing is a fantastic organization; the office staff, Katie and Charlotte, who helped me are the best.

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Tom F.
September 15, 2026

Our well lines began to leak after many years of service. Noah Zohrabi,YDeybis Gomez & Markel Watts came to the rescue! Excellent service from some very professional, courteous & knowledgeable folks!

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Viannah E.
September 12, 2026

Thank you to Seth, who came on Wednesday and fixed one of our two toilets and fixed our primary bedroom shower. And thank you to Charlie, who came today and replaced our other toilet and replaced our garbage disposal. You are both lifesavers! Our weekend (and going forward) will be MUCH nicer now that we can use our bathrooms (and garbage disposal) again. Highly recommend Clarksburg Plumbing.

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Ms. R.
September 11, 2026

Excellent service today from John Brown and Madeleine S. They were very kind and took time to explain the issue with my dishwasher. I really appreciate their professionalism and efficiency. I would definitely consider using this company again based on my service today!

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Annabelle S.
September 11, 2026

GREAT service and expertise! John and Maddie just installed a water filtration system to our home. The process took one day to install and then they came back from the 48 hour install period to ensure everything was working well. John was familiar and knowledgeable about the water system we bought. Maddie and John kept our space clean, clearly explained how to ensure longevity for our system to last, and the difference it will make in our home. We appreciate their hard work and professionalism. This is our second time using Clarksburg plumbing. We would highly recommend their company to our family and friends.

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Dia R.
September 11, 2026

We had a good experience with Clarksburg Plumbing: it was easy to schedule, they communicated clearly, arrived on time, and did a great job on completing the work.

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Dan M.
September 11, 2026

Great

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Roxie H.
September 7, 2026

John did Excellent job with installing water refrigerator line for my refrigerator. My Condo was built 1983, and pipes were complicated, but not for John. He found it easy and finished the job in the timely manner. I am very happy customer. Thank you John!!

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Rebecca W.
September 4, 2026

John Brown was knowledgeable, responsive and pragmatic. He saved us time by diagnosing then recommending best course of action. We are now waiting for the estimate for the project and will be going with Clarksburg Plumbing on our 1948 cap cod renovation. Highly recommend this company’s knowledge, professionalism and responsiveness.

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vince R.
September 3, 2026

Franklin and his crew showed up promptly and communicated great with us to help limit disruption with the tenants at 4 of our building. Unfortunately for us a second water main leak occurred the day before. But luckily for us they were able to stay on site another 2 days and knock the second one out, even staying till 8pm to find the line and get it repaired. These will be the guys I request for our next time needs

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Jonathan I.
September 3, 2026

Seth and Brady did a fantastic job replacing our water heater. They were professional, courteous, and detail oriented. They arrived on time and did careful, clean work all the way through. We have worked with Clarksburg Plumbing on smaller items before this and would be very happy to utilize their services in the future, as well.

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Ata B.
September 2, 2026

John and maddie were exceptionally professional and did an most effetive job in installing a expansion tank on our water heater.

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Zach M.
September 2, 2026

Brady did an excellent job. From the time I called to the time the repair was completed was within 4 hours

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Mary W.
September 2, 2026

We were very happy with the service we received today from John and Maddie. They were both very professional, ran the necessary tests to confirm the issue, and explained what they were doing step by step. They wore the protective booties to keep the floor nice and dry from the rainy weather too. Thank John and Maddie for all your help!

Good questions

Underground plumbing FAQ

Quick answers about sewer, water line, and trenchless work.

Trenchless repair fixes or replaces your sewer line with little or no digging, usually through one or two small access points. It is faster, cleaner, and protects your yard, driveway, and landscaping compared to a full dig.

Multiple slow or backed-up drains at once, gurgling toilets, sewage odors, or soggy patches in the yard often point to the main sewer line. We run a camera inspection to confirm exactly what and where the problem is.

Hydro-jetting uses high-pressure water to scour grease, scale, and tree roots from the inside of your pipes, far more thoroughly than snaking. For pipes in good condition it is very safe, which is why we camera the line first to confirm.

Not if we can help it. We use camera diagnosis to dig only where needed and offer trenchless options for many sewer and water line jobs. When digging is required, we restore the area as best we can.

It varies by material, but many lines last 40 years or more. Older Orangeburg, clay, or galvanized lines fail sooner. A camera inspection tells us the real condition and whether repair or replacement makes sense.

Yes. Along with water and sewer line leak detection, we locate pool and underground leaks using specialized equipment, so we find the problem without tearing everything up.

We serve Clarksburg, Germantown, Gaithersburg, Rockville, Damascus, Potomac, North Bethesda, and the surrounding Montgomery and Frederick County area.

Ready when you are

Trouble underground?

Let's Flow.

Backed-up sewer, soggy yard, or a failing line? Book online or call a real neighbor. We diagnose with a camera first, then fix it right, with trenchless options where we can.

Same-day service

Let's get started

(301) 972 2223

Available 24/7 for Clarksburg and beyond

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