Your Plumber in Frederick, MDRight up the highway.
Plumbing built for how Frederick actually lives
Frederick is Maryland’s second-largest city, and it has been building since 1745. The Frederick Historic District holds buildings from the late 1700s through 1941. Then the city grew outward fast. Worman’s Mill, Spring Ridge, Tuscarora Creek, and Ballenger Run filled in from the 1990s onward.
Inside the City of Frederick, water lines are almost all copper. Copper is good pipe, and it still develops pinhole leaks as it ages and reacts to water chemistry. Sewers are the bigger variable here. Depending on when your block went in, we open up clay, cast iron, Orangeburg, or PVC. Knowing which one is under your yard before we dig is most of the job.
Leak detection and underground plumbing in Frederick, MD
Most of what we do in Frederick falls under underground plumbing, the work that happens below the yard.
Sewer Line Repair & Replacement
Plumbing Services
24/7 Emergency
Common underground problems in Frederick homes
Copper pinhole leaks
City of Frederick homes run copper supply lines. As copper ages, pinholes open up, and water chemistry pushes it along. See slab leak detection and repair.
Tree roots in the sewer
Big old trees and trees planted close to the cleanout or tap connection are the usual culprits. Cutter heads first, then jetting with RootX, then a dig if the line is gone.
The wet spot that never dries
A puddle in the front yard, a jump in the water bill, or water you can hear running all point underground.
Repeat backups from a belly
A low spot in the line holds waste and clogs again and again. A sewer camera inspection finds it, and locating equipment marks it from above ground.
Frederick neighborhoods and ZIP codes we serve
We cover all four Frederick delivery ZIP codes: 21701, 21702, 21703, and 21704. See the rest of our coverage on the Clarksburg Plumbing service area map.
A Frederick plumber who knows the local rules
Frederick runs differently from Montgomery County, and it changes how your job gets scheduled. Here the water utility does the shutoff, not us. Short notice can push a water line job to the next day. Permits are not always issued on the spot the way WSSC permits are, and inspection scheduling runs later in the day than the 11 a.m. WSSC cutoff. We build all of that into the date we give you. The timeline you hear is the timeline you get.
The same crews run our plumber in Clarksburg and plumber in Damascus coverage. Frederick is the next stop up the highway.
The plumber from right up the road
When you hire Clarksburg Plumbing for your Frederick home, you hire a fourth-generation family company. We have been women-owned and in business since 2008, and we are WBENC certified. New school plumber, old school values. What we are known for is being the second or third plumber on a job. We find what the others could not. We own our leak detection, camera, and locating equipment instead of subbing it out, and you keep a flash drive of your own camera footage.
Underground repairs run $1,500 to $20,000 and up. Depth past ten feet, rocky ground, sidewalks, street work, and tight access are what move that number. Dig estimates are free, so you get a written price before anyone touches your yard. Financing is available through GreenSky. We do not work directly with your insurance company, but we will answer every question they have so you can get reimbursed. Weighing a dig against a no-dig repair? Our guide to trenchless vs traditional sewer repair breaks down the decision.
On warranties: labor is one year on above-ground replacements and 90 days on repairs. Underground excavation carries three years, which Maryland requires of us anyway. Underground water line pipe carries a lifetime warranty, and it transfers if you sell. More on how we work is on the why choose Clarksburg Plumbing page.
A crew you are glad to let in
Three master plumbers lead our crews, and our technicians are our own trained, background-checked team of 25-plus. They carry current Miss Utility and OSHA training, and they are licensed under the Maryland Board of Plumbing. On shared driveways, easements, and community property we work with every party involved. The yard we dig is somebody’s yard.
What your Frederick neighbors say
Rating
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!
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.
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!
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.
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!
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!
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.
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.
John Brown & Maddie did a great job with installing our new sump pump and battery backup--very informative, patient and thorough.
Many thanks to John and Maddie for their excellent work and cheerful attitude.
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.
John & Maddie were great to get me scheduled for a potable water replacement
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
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!
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.
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.
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.
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.
John and Maddie arrived on time and were professional and kind! All issues were resolved without issue! Highly recommend!
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.
Seth was very professional, quick and efficient. Also kind and personable.
Franklin, Chris and Colton, are hard working knowledgeable. They are polite and friendly. They ran into some issues replacing my out side water line. The problems were solved. They cleaned up all debris. I would request this crew if I ever have another plumbing issue. Thank you guys!
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!
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.