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
S D.
July 16, 2026
Highly recommend Clarksburg Plumbing! They accommodated my schedule right away. John and Maddie were amazing!! They took care of my pipe repair quickly and efficiently! 10/10 recommend!
Jim C.
July 16, 2026
John and Maddie were the ultimate professionals. Came on time. Clear estimate. Excellent work fixing my pressure relief valve, which had been improperly installed by another plumber. Clarksburg are my go to plumbers from now on.
Ruth T.
July 15, 2026
Arrived on time, explained entire process, had plan a,b,c, in place, Did the best job I could ask for, and even show me the hole in my main line in the pipe. Highly recommend this company for all your plumbing needs.
Pamela B.
July 15, 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!
Al B.
July 9, 2026
I had Seth come out to change my outdoor spiked. He was in and out in no time and did a great job!
Duh S.
July 7, 2026
Called yesterday, they came today, had a clogged kitchen sink. The service was quick and Professional. Great job!
Praneeth M.
July 7, 2026
Garrett did a fantastic job snaking our clogged drain. He was incredibly professional, efficient, and made sure everything was completely clean before he left.
Andrea B.
July 7, 2026
I needed a water valve installed for my new fridge and a new faucet installed in upstairs bathroom. Seth was amazing. He came out and really listened to me and my concerns. We even called the company that was going to deliver my new fridge so he would have a better understanding of what he needed to do his job. It made me feel at ease with the whole process. He is even coming back later in the week to install new fridge once it’s delivered. I will absolutely call them again.
Shariq S.
July 6, 2026
Seth was great explaining the descaling process and performing it with precision.
Sarah R.
July 1, 2026
Seth replaced our hose bib in the front yard and did a great job! It was hot out but he still took the time to make sure everything was good to go. I called Clarksburg Plumbing yesterday and they were able to come out next day. Very professional.
B H.
June 30, 2026
Seth and his partner were very professional and did an awesome job fixing the main water valve. I highly recommend them.
CandP H.
June 29, 2026
Amazing experience with Clarksburg Plumbing LLC! Our well pump needed replacement. Seth showed up right on time, was very professional, knew what he was doing and pricing was fare (they showed me all estimates upfront and explained everything). Any future plumbing needs and Clarksburg Plumbing will be my first call. I’ll also ask for Seth by name if I can get him!!
Sarah B.
June 26, 2026
We had a pinhole leak suddenly appear in our outdoor hose bib, and Clarksburg Plumbing was able to provide next-day service, which we really appreciated. Our technician, John Brown, arrived right on time after giving us a 30-minute courtesy call. John quickly diagnosed the problem, explained everything clearly, and provided an accurate assessment of what needed to be done. He completed the repair in under two hours, and the quality of his work was excellent. Before leaving, he even took the time to share some helpful tips on how to prevent similar issues in the future. John was friendly, professional, knowledgeable, and efficient from start to finish. We couldn’t have asked for a better service experience. I highly recommend Clarksburg Plumbing and especially John Brown for anyone needing reliable, high-quality plumbing work.
Neil D.
June 26, 2026
Great experience. Team arrived on time and were efficient. Seth explained everything with even gave me some tips and pointers to look out for moving forward. David made sure everything was cleaned up before they left.
Eliot C.
June 12, 2026
Clarksburg Plumbing installed an external bib; after a couple of months there was a mechanical failure in the vacuum breaker. They responded within 24 hours, fixed it, no charge. Seth was prompt, courteous and efficient. We will be happy to use their services again.
Joseph A.
June 10, 2026
Franklin and Cris — great job and great guys. Everything went smoothly with water line replacement. A tough job. Thanks for your hard work. Clarksburg Plumbing is the best!
Joshua R.
June 5, 2026
Cris and Franklin from Clarksburg Plumbing did incredible work at our home fixing an underground water service leak. They encountered complications but went to plan B efficiently and skillfully and got the job done well and in a timely manner. They also answered all our questions patiently and taught us a lot of why they made the decisions they made. We are very pleased with their work and plan to recommend them and all of Clarksburg Plumbing to our friends and neighbors.
David N.
June 2, 2026
Franklin and Cris were especially helpful, informative and instructive. The rest of the instructive, polite and professional. Overall a good experience for me and my wife.
Stephen C.
May 17, 2026
We had a clog in our septic line. The Clarksburg Plumbing crew located the troublesome area using a camera and then removed the clog and tested the line. They then remounted the toilet with a new wax ring and cleaned the area. Overall, a great experience!
Tom W.
May 7, 2026
Seth did a great job today 5/7/2026 installing a new toilet for us. Second time he has helped us through Clarksburg Plumbing. Ask for him by name and you won’t be disappointed!! Thanks Seth!
peter D.
April 30, 2026
These guys are diligent, courteous and did a great job! They were friendly, helpful and thorough - I'd recommend Clarksburg plumbing any day of the week and twice on Sundays
Seth K.
April 28, 2026
Seth was absolutely amazing! He was very courteous and knowledgeable about his profession. He arrived on time and worked the entire time. He kept me in the loop the entire way as to what he was doing. He diagnosed two leaks within our toilet system and readily fixed them. Clarksburg Plumbing should be honored to have such an amazing employee as him.
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