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    Verified french drain services reviews

Top-Rated French drain pros in Potomac - Updated Nov 2026

Avatar for Remedy Plumbing & Drain Cleaning, LLC
Remedy Plumbing & Drain Cleaning, LLC
4.7(
733
)
Drain Clog or Blockage - ClearSump Pump or Interior Foundation Drains - Install

Serving Potomac, MD and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

"I would recommend Remedy P&D to anyone needing a plumber. They were fast to respond and schedule an appointment for a free estimate. The plumber arrived on time and was dressed in a professional company uniform. The plumber also recommended a quick cost saving option for fixing my upstairs bathroom drain. Instead of trying to make a quick buck by over charging me on a simple fix he advised me to save the cost and do his recommendation."
Response time5 hrs
59 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Star Plumbing and Drain, LLC
Star Plumbing and Drain, LLC
4.5(
289
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business

Serving Potomac, MD and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Star Plumbing came out on a Sunday evening at exactly the agreed upon time. He was very pleasant, professional and knowledgable however he did not have the equipment necessary to clear my clogged drain. His longest snake was 50' long and the clog was more than 50' from the snake's entry point into the drain system. He initially tried to clear the drain with his 25' snake and when that did not work he used his 50' snake. When that did not work he called a colleague with another company and asked him to come out the next day. Star Plumbing did not accept any money for his attempt to clear the clog. The colleague he called arrived the next day at the time agreed upon and was able to clear the clogged drain."
our ad
Response time8 hrs
Recommended by95%of homeowners
Avatar for Drainage and Erosion Solutions
Drainage and Erosion Solutions
4.2(
310
)
Basement Drainage Channels - InstallFoundation Drainage - Install or Replace

Serving Potomac, MD and surrounding areas

Approved

In business since 2003

Free estimates

Warranties offered

"David & his team with Arcelio did an outstanding job! We needed it done on short notice & they rose to the occasion. And just before a weekend of heavy rains. So our basement went from waterfalls of leaks to dry as a bone, despite the heavy flooding outside. They took lots of pictures of the process so we could see all the work they did underground. They were reasonably priced & did the job done with good attention to detail & pleasing aesthetics with the river stone. We love that they guarantee their work. We're very grateful to have chosen Drainage & Erosion Solutions. We kept seeing their signs & trucks in the Del Ray, Alexandria neighborhood over the years & we can see why others chose them, also."
The property before we began.
First step - demolition
Regrading and Patio
Regrading and Patio
Regrading and Patio

+66

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Suma Plumbing and Drain Cleaning, LLC
4.9(
635
)
Drain Clog or Blockage - Clear

Serving Potomac, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Customers say: True professional

"Suma responded to our request to snake our basement floor drain. Upon inspection we were quoted a price for the job which we felt was reasonable. The technician completed snaking the drain and then tested it thoroughly to be certain it was clear. Very professional."
Response time2 hrs
25 neighbors recently requested a quote
Recommended by95%of homeowners
Joseph plumbing & drain
4.9(
162
)
Basement Drainage Channels - InstallDrain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For Business+3 more

Serving Potomac, MD and surrounding areas

Approved

Super Service Award Winner

In business since 2018

Free estimates

Emergency services offered

"The Technician Joseph came promptly, changed the garbage disposal and unclogged the drain line quickly within a couple of hours, great job and I am very satisfied with service. Highly recommended."
Response time6 hrs
Response rate100%
4 neighbors recently requested a quote
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French Drains FAQs, answered by experts

Drain clearing removes debris and clogs from drain pipes enough to allow water to drain properly. On the other hand, drain cleaning removes all of the material from the pipe so that water flows unrestricted, which is a longer-term solution. Your plumbing pro will be able to recommend the right service depending on the clog size, frequency of issues, and surrounding pipework.

Bleach—even diluted bleach—is not always the safest option for cleaning your drains. With a high pH, bleach can be highly corrosive to many types of pipes, especially when used regularly. When mixed with household cleaners and organic waste, it can also create dangerous chemicals. Remember to use proper protective equipment and ventilation when dealing with bleach.

Pouring drain cleaner down a vent pipe isn’t recommended. First of all, unlike a clog in a sink or bath caused by such material as soap scum build-up, toothpaste, and hair, clogs in a vent pipe are likely the result of debris from trees or even an animal stuck in the pipe. Drain cleaners won’t be able to eat through this kind of material. The cleaner will only become clogged in the vent with the debris, causing even more problems.

Costs vary by severity and access requirements. Typical pricing ranges from $100 to $350, increasing with complexity or for emergency services.

If the drain is frozen, the pipes connecting to the washing machine are likely frozen. If the hot water trick doesn’t also unfreeze the washing machine pipes, you can gently apply heat with a hair dryer on the lowest setting. Start at the end of the pipe closest to the faucet to prevent pressure from building in the pipes, and make sure the faucet is open to drain the water as it melts.

The Potomac, MD homeowners’ guide to french drain services

From average costs to expert advice, get all the answers you need to get your job done.