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Olney, MD · Route 108 straight east

Your Plumber in Olney, MDGeorgia Ave to Brookeville Knolls.

We come at Olney from the Route 108 side, straight east through Laytonsville, and we have been working these streets for years. Olney was farmland until the 1960s, which means most of the houses here are now 40 to 60 years old, and the plumbing shows it. Cast iron stacks, roots in the sewer lateral, original water lines. We fix those every week.
Route 108 and the ICC
Same-day in 20832
24/7 emergency
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Clarksburg Plumbing excavation crew truck parked on a tree-lined street in Olney, MD
Across the county
Olney is a short run east
Built for Olney's housing stock

The plumbing problems that come with a 1970s Olney house

Olney grew up fast. It sat as farmland around the crossroads of Georgia Avenue and Route 108 until the 1960s, then filled in over three decades with the neighborhoods people know today: Olney Mill, Williamsburg Village, Hallowell, Tanterra, Allanwood, the Highlands of Olney, Brookeville Knolls. That timeline matters more than anything else on this page, because it means Olney homes are almost all past the age where original plumbing starts to fail. We are not guessing at what is wrong in your house. We have usually seen the same thing two streets over.

Most of Olney sits on WSSC water and sewer along the Georgia Avenue corridor, and the sewer laterals running out to the street are the single biggest thing we get called for here. Olney’s mature tree canopy is one of the nicest things about the place and one of the hardest things on clay and cast iron pipe. Push out past the developments toward Brookeville, Sandy Spring, Ashton, and Laytonsville and you are into well and septic country, which is a completely different set of problems. We work both, and we bring the camera and the jetter either way.

What we do in Olney

Plumbing services in Olney

Six things we get called for most on this side of the county, and most of it is underground plumbing. Tap a service for the details.

Sewer & Water Lines

Camera diagnosis, spot repair, and trenchless replacement for root-blocked Olney laterals.
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Drain Cleaning & Hydro Jetting

Cabling clears the clog. Jetting clears the pipe wall so it stays clear.
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Water Heaters

Replacement, repair, and tankless conversions for Olney basements and utility closets.
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Sump Pumps

Pumps and battery backups for the summer storms that sit on Olney.
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Well Pumps, Septic & Filtration

For homes out toward Brookeville, Sandy Spring, and Laytonsville.
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24/7 Emergency

No water, a burst line, or sewage backing up. A person answers, any hour.
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What we see in Olney

Common plumbing issues in Olney homes

Tell us your street and the year your house was built and we can usually narrow it before we arrive.

1

Roots in the sewer lateral

Olney’s big trees put roots into old clay and cast iron joints. Slow drains everywhere at once, gurgling toilets, and backups after heavy use are the tell.

2

Original water service lines

Houses from Olney’s 1960s and 70s buildout are on their first water line. We see pinhole leaks, pressure loss, and wet spots in the yard along the run to the street.

3

Cast iron drain stacks

Interior stacks in Olney homes of this vintage scale up and rust through from the inside. Often blamed on a clog when the pipe itself is the problem.

4

Storm-loaded sump pumps

Olney takes summer thunderstorms hard. A sump pump that has run for 15 years is not the one you want when the next one parks over the Hawlings River watershed.

Where we work

Olney neighborhoods we serve

All of Olney and 20832, plus the addresses just past the line that still call Olney home. See the rest of our coverage on the Clarksburg Plumbing service area map.

Hallowell & Longmead
Mature trees, mature sewer laterals. We camera a lot of lines in here.
Olney Mill & Williamsburg Village
Core 1960s and 70s Olney, where original supply lines and cast iron are giving out.
Highlands of Olney & Tanterra
Family streets we are on most weeks for drains, heaters, and fixtures.
Brookeville Knolls & Willson Hills
Up toward Brookeville on the Georgia Avenue side.
Allanwood, Camelback & Cherrywood
Established neighborhoods off Route 108 and Norbeck Road.
Toward Sandy Spring & Ashton
Rural-edge properties on private well and septic.
A short run east

Close enough to be useful, local enough to care

Olney is a straight shot for us on Route 108 through Laytonsville, or across the ICC. We reach most Olney addresses same day, and we are available 24/7 when something is actively flooding. You get a dispatcher who knows where Prince Philip Drive is, not a call center that has to look it up. The same crews cover the towns on either side of you, from our plumber in Damascus to our plumber in Rockville.

Same-day coverage across Olney and 20832
We work WSSC-connected and well-and-septic homes alike
Licensed and insured in Maryland, WSSC permitted work
Why Olney calls us

The plumber who brings a camera before a shovel

Clarksburg Plumbing is a fourth-generation family company, and the thing that tends to matter most to Olney homeowners is this: with houses this age, the difference between a $400 visit and a $12,000 one is whether somebody actually looked. We camera the line first, show you the screen, and tell you plainly what we see, including when the answer is that you do not need the big job yet. Then we stand behind whatever we do.

Two Clarksburg Plumbing technicians in branded shirts, part of the crew serving Olney, MD
Meet your local crew

A crew you are glad to let in

Our technicians are our own trained, background-checked team, not subcontractors we found this morning. They show up when we said, put covers on their boots, explain what they are doing in plain language, and clean up before they leave. In a community like Olney, where neighbors talk, that is the only way this works.

From our Montgomery County neighbors

What your neighbors say

4.8
Based on 581 Reviews
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Jackie S.
October 26, 2026

A terrific, reassuring experience getting me through a broken sewer line emergency which required digging up and replacing 20 ft of cracked, aging sewer line that had a belly. Everyone I worked with at Clarksburg was professional, competent, and efficient. The price was reasonable as well . Special shout out to my excavation crew: Noah, Markell, and Deybis headed by Jason. Thanks to Garrett and Cris who did my initial emergency intervention, snaking and diagnosis, Teyvon, John and Brady who helped with the hydrojetting, camera, and advice on how to prevent recurrence before pipe replacement. On a previous occasion, I had a great experience with Tyler who checked for a toilet leak and caulked. Finally, I greatly appreciated the comforting attention of the excellent reception staff Charlotte and Katie. Much appreciated Clarksburg Plumbing!

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Jan B.
October 23, 2026

Tyler and Brad did a great job replacing my water heater today. They cleaned up afterward and thoroughly checked everything before they left.

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Brandon H.
October 22, 2026

⭐⭐⭐⭐⭐ Tyler from Clarksburg Plumbing did an outstanding job fixing my leaking shower! He was professional, courteous, and communicated clearly throughout the entire process. I really appreciated how he kept me informed and made the experience easy and stress-free. His attention to detail and pride in his work stood out. It’s a great feeling to have someone working in your home who treats the job with care and professionalism. Tyler delivered excellent service, and I would absolutely recommend him and Clarksburg Plumbing. Thank you, Tyler, for a job well done!

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Catherine J.
October 15, 2026

Seth was excellent; he provided great and fast service and was very helpful as the scope of the work increased. Thanks!

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Billie H.
October 13, 2026

Wonderful crew. May God bless them.

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sam S.
October 13, 2026
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Evangeline L.
October 12, 2026

They are great and patience people I love their job.

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Sean P.
October 8, 2026
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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!!

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Eric L.
October 7, 2026

Charlie did a fantastic job, would highly recommend.

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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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william B.
September 24, 2026
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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.

Good questions

Olney plumbing FAQ

What Olney homeowners ask us most.

Do you offer emergency plumbing services in Olney?
Yes, 24 hours a day. If you have no water, a burst pipe, or sewage coming up a floor drain, call (301) 972 2223 and a person answers. We run emergency calls into Olney on Route 108 and the ICC, and we get a stocked truck moving rather than booking you for Tuesday.
What are the most common plumbing problems in Olney homes?
Root intrusion in the sewer lateral is number one, because Olney's tree canopy is older than most of its pipes. After that: failing original water service lines, corroded cast iron drain stacks, and water heaters at the end of a 12 to 15 year life. Nearly all of it traces back to Olney being built out between the 1960s and the 1980s.
Do you serve my Olney neighborhood?
We cover all of Olney and 20832, including Hallowell, Longmead, Olney Mill, Williamsburg Village, Highlands of Olney, Tanterra, Allanwood, Camelback Village, Cherrywood, Brookeville Knolls, and Willson Hills, plus the rural properties out toward Brookeville, Sandy Spring, and Ashton.
My Olney home is on a well and septic. Can you help?
Yes. Plenty of properties on the edges of Olney are not on WSSC. We service well pumps, pressure tanks, water filtration and treatment, and septic systems. Well water out this way often comes with low pH and iron, so if your fixtures are staining or your pressure has dropped off, that is worth a look.
How does the weather in Olney affect plumbing?
Two ways. Summer thunderstorms hit this part of the county hard and overload sump pumps, which is why we push battery backups on finished basements. Then Maryland's winter freeze and thaw cycle moves the ground, which stresses old sewer and water lines that are already at the end of their service life, and freezes hose bibs and pipes running through unheated crawl spaces and garages.
Can you handle water line replacement and WSSC permitting in Olney?
Yes. Water and sewer line replacement is the work we are best known for, including trenchless methods that avoid tearing up your driveway and lawn. We pull WSSC permits and handle the county side of it.
What plumbing services do you offer in Olney?
All of it: drain cleaning and hydro jetting, sewer and water line repair and replacement, camera inspection and leak detection, water heaters and tankless, sump pumps, well pumps, water filtration, septic, gas lines, fixtures, and 24/7 emergency service, residential and commercial. One home service company in Olney for the whole system, inside the house and out under the yard.
Your local plumber

Olney's pipes are older than Olney's trees.Let's Flow.

Need a plumber in Olney? Book online or call and talk to a real person. We will tell you what we find, show you the camera, and give you the honest version of what it costs. Available 24/7 across Olney and Montgomery County.
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Let's get started

(301) 972 2223
Available 24/7 for Olney and all of Montgomery County
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