Commercial Sewer & Excavation · Clarksburg, MD
Commercial Sewer & Excavation
Dig once, done right.
When a commercial sewer backs up or a buried line fails, the fix is rarely simple, and it is rarely a small dig. We handle commercial drain and sewer service plus the excavation behind it across Clarksburg and Montgomery County: cleaning, jetting, camera diagnosis, sewer and water line repair and replacement, utility trenching, and trenchless options that keep the dig small and your business open.
Sewer, water & utility linesExcavation & trenchlessLicensed & insured
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Underground experts
Sewer, lines & site work
The basics
Sewer and excavation, one crew
Commercial sewer problems and the excavation to fix them usually go together, and using two different companies for the diagnosis and the dig wastes time and money. We do both. We camera the line to find the real problem, clear or jet what we can, and when a line needs to be repaired or replaced, we handle the excavation, utility trenching, and site restoration ourselves, with trenchless options wherever they fit to keep the disruption to your property and your operation as small as possible.
What we do
Commercial sewer & excavation services
From a backed-up main to a full line replacement and the dig to do it, one crew handles it all.
Commercial Drain & Sewer Cleaning
Clearing backed-up and recurring drains and main lines in high-demand commercial buildings.
Sewer Line Repair & Replacement
Camera-diagnosed repair and full replacement of commercial sewer lines, dig or trenchless.
Hydro-Jetting
High-pressure jetting that scours grease, scale, and roots from commercial drain and sewer lines.
Excavation & Trenching
Careful digging and trenching for sewer, water, and utility line work, with proper shoring and safety.
Utility Line Excavation
Excavation for water, sewer, and gas service lines, new installs, repairs, and tie-ins.
Camera Inspection & Locating
We scope and locate the line first, so any dig is precise and you only pay to fix what is wrong.
How it works
Diagnose, dig smart, restore
We dig only where we have to, and we put your site back together when we are done.
1
Camera & locate
We scope the line and pinpoint the problem and its depth, so the dig is targeted.
2
Clear or plan the dig
We jet or clear what we can, and plan the excavation or trenchless repair for what we cannot.
3
Excavate & repair
We excavate safely, repair or replace the line, and coordinate around your operation.
4
Backfill & restore
We backfill, compact, and restore the site, including hardscape, as close to original as possible.
When to call
Signs you need sewer or excavation work
For a commercial property, an underground problem only gets worse, and more expensive, the longer it waits.
Recurring or multiple backups
Main-line backups that keep returning across a commercial building point to a deeper sewer problem.
Sewage odors or standing water
Odors inside or wet, sunken spots outside can mean a cracked or collapsed line underground.
Slow drains building-wide
Sluggish drainage throughout a property usually means a restriction in the main sewer line.
Failed inspection or violation
A flagged sewer or site issue needs diagnosis, repair, and proper restoration to clear.
New construction or tie-ins
New service lines, additions, and utility tie-ins need excavation done right and to code.
Old or undersized lines
Aging clay, cast iron, or undersized commercial lines crack, root, and clog and may need replacement.
Sewer trouble or a dig coming up? Let's scope it.
Book OnlineCall (301) 972 2223
What we dig
Sewer, water, and site work
If it runs underground at your property, we can diagnose it, dig it, and restore it.
Sewer Lines
Main sewer and lateral lines cleared, repaired, or replaced, with excavation or trenchless methods.
Water & Service Lines
Commercial water service lines excavated, repaired, replaced, and tied in to the main.
Site & Utility Work
Trenching, utility excavation, and site restoration for new builds, additions, and tie-ins.
Local, licensed, low-disruption
Why this matters here
Commercial excavation in Montgomery County means permits, utility locates, traffic and parking impacts, and inspections, and every day your lot is torn up is a day customers cannot reach you. As a local, licensed contractor, we handle the permitting and locates, dig smart with trenchless options where they fit, and restore the site fast so your business keeps running.
- We camera and locate before any dig
- We handle permits and utility locates
- Trenchless options keep digs small where possible
- We restore the site and work around your hours
Less digging
Ask about trenchless
For many commercial sewer and water lines, we can repair or replace with little digging. See how trenchless works.
The crew that does the hard digs
A crew you are glad to let in
Commercial sewer and excavation work takes the right equipment, the right permits, and real experience. Our own trained, licensed, background checked crew owns the whole job, from camera diagnosis to the dig to the final restoration, so you deal with one team, not three.
From our neighbors
What your neighbors say
Rating
Michele M.
October 8, 2026
I had an absolutely wonderful experience with Clarksburg Plumbing LLC, and especially with Seth. From the moment he arrived, he was professional, respectful, knowledgeable, and quite frankly, a breath of fresh air. I was extremely nervous about the situation because my leak was below the main water shutoff valves, and the water had to be turned off at the street. Seth immediately put me at ease and assured me that everything was going to be okay. Rather than just putting together a temporary solution, he wanted to make sure he ordered the exact parts needed to do the job properly. Seth told me he expected to have the correct part and be able to return on Wednesday to complete the repair. On Tuesday afternoon, the office called to let me know the part had arrived and confirmed that Seth would be back Wednesday morning between 8:00 and noon. Seth was at my door at 8:10 AM! I was genuinely impressed. He completed the repair carefully, explained everything he was doing, and was extremely conscientious about properly turning the water back on, opening the faucets in the house, and making sure everything was working exactly as it should. What impressed me most, though, was Seth himself. He has a wonderfully calm, professional demeanor that made a very stressful situation so much easier for me. I sincerely appreciate the care he took with my home and the respect he showed me throughout the entire process. Clarksburg Plumbing is very fortunate to have someone like Seth representing their company. I would absolutely recommend them and Seth!!
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!
Robert B.
September 25, 2026
John and Maddy showed up on time and did a superb job. Very friendly and informative
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!
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!
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.
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
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.
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!
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.
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!
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.
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.
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!!
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.
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
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.
Good questions
Commercial sewer & excavation FAQ
What property managers, owners, and GCs ask us most.
Do you handle both the sewer diagnosis and the excavation?
Yes, that is the point of this service. We camera and locate the problem, clear or jet what we can, and when a line needs repair or replacement we do the excavation, utility trenching, and restoration ourselves, so you are not coordinating multiple companies.
Can you repair a commercial sewer line without tearing up the lot?
Often, yes. For many commercial sewer and water lines we offer trenchless repair or replacement that needs only small access points. We camera the line first to confirm trenchless is the right method.
Do you handle permits and utility locates for excavation?
Yes. We pull the required permits and arrange utility locates before any dig, and coordinate inspections, so the work is legal, safe, and documented.
Will excavation shut down my business?
We work to minimize it, scheduling around your hours, digging only where needed, using trenchless where possible, and restoring the site quickly so customers and staff can get back to normal fast.
Do you do utility and site work for new construction?
Yes. We excavate and install water, sewer, and service lines for new builds, additions, and tie-ins, coordinated with your general contractor and schedule.
Do you restore the site after digging?
We do. We backfill, compact, and restore the area, including hardscape where possible, leaving your property as close to how we found it as we can.
What areas do you serve?
We serve Clarksburg, Germantown, Gaithersburg, Rockville, Damascus, Potomac, North Bethesda, and the surrounding Montgomery and Frederick County area.
Underground experts
Let's get under your sewer problem.
Let's Flow.
Backed-up main, failing line, or a dig on the horizon? Book online or call a real person. We camera it first, then handle the sewer work and the excavation with one crew. Here 24/7 for emergencies.
Book OnlineCall (301) 972 2223