Commercial Plumbing · Clarksburg, MD

Commercial Plumbing in Clarksburg, MD

Keeping your business flowing.

Restaurants, retail, offices, rentals, and multi-unit properties count on us for backflow testing, grease traps, fixtures, tenant build-outs, and drain and sewer work across Clarksburg and Montgomery County. Licensed, insured, and fast, so downtime stays short and your doors stay open.

Licensed & insuredMinimal downtime24/7 emergency
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Open for business
Commercial specialists
What we do for business

Commercial plumbing services

One licensed, insured crew for your whole property. Tap any service to see how we handle it.

Backflow Testing

Certified backflow testing, repair, and annual recertification to keep your water safe and stay compliant.

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Grease Trap Install & Repair

Grease trap installation, cleaning, and repair that keeps your commercial kitchen compliant and flowing.

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Fixture Repair & Replacement

Faucets, toilets, urinals, sinks, and water heaters repaired or replaced across your facility.

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Tenant Build-Outs

Well pump repair and replacement that restores steady water pressure to your home.

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Commercial Drain & Sewer

Drain cleaning, hydro-jetting, and sewer repair sized for the demands of a busy commercial property.

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Hydro-Jetting

High-pressure cleaning that clears grease, scale, and roots from kitchen and main lines.

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Commercial Gas Lines

Safe gas line installation, repair, and inspection for commercial kitchens and equipment.

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24/7 Emergency Service

Burst pipes, backups, and no water answered around the clock, so you stay open for business.

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Don't see it?

Backflow, water heaters, site surveys, repipes, and more. If your business needs plumbing, we do 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 businesses call us

One commercial crew you can rely on

No rotating subcontractors and no surprises. The same licensed, background checked crew handles your backflow tests, grease traps, build-outs, and emergencies, and we work around your hours to keep downtime short.

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 540 Reviews
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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!

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David G.
July 19, 2026

Happy we called them. It is refreshing to deal with a company a company with great customer service and honest techs. Highly recommend you call them.

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Christine K.
July 18, 2026

Seth was very professional, quick and efficient. Also kind and personable.

Good questions

Commercial plumbing FAQ

Quick answers for property managers, owners, and operators.

Yes. We perform certified backflow testing, repair, and the annual recertification many Maryland jurisdictions require, and we handle the paperwork so you stay compliant.

We do. We install, clean, and repair grease traps and interceptors, and hydro-jet grease-clogged kitchen lines to keep restaurants and food-service businesses running and code-compliant.

Yes. We provide plumbing for new tenant spaces from rough-in through final fixtures, coordinating with your schedule and contractors to hit your opening date.

Yes. We are available 24/7 for burst pipes, backups, and no-water emergencies, because for a business, downtime is lost revenue. A real person answers any hour.

Restaurants, retail, offices, medical and professional buildings, rentals, and multi-unit properties throughout Clarksburg and Montgomery County.

Yes. We are fully licensed and insured, every technician is background checked, and we carry the coverage commercial jobs require.

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

Ready when you are

Need a commercial plumber?

Let's Flow.

Keep your business running with one trusted commercial crew. Book online or call and talk to a real person, we work around your hours and answer 24/7.

Same-day service

Let's get started

(301) 972 2223

Available 24/7 for Clarksburg and beyond

Book a service