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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

To clean gunk out of a sink drain, pour in a half cup of baking soda, then 1 cup of white vinegar. The two will react chemically; let them fizz for 15 minutes, then rinse with boiling water. Repeat these steps if necessary for particularly dirty sink drains, and consider a drain snake if there are clogs.

It takes hair about two years to dissolve on its own in the drain without the use of any tool or help. Fortunately, using a drain snake, plunger, or any of the actions mentioned above to dissolve the hair will help get rid of the clog in as little as 15 minutes. 

The best drain cleaners are biodegradable ones or a mixture of baking soda and vinegar. Strong, caustic chemicals may seem appealing with promises of unclogging your drain quickly, but liquid drain cleaners can cause damage to your pipes over time. Consider making your own drain cleaner with baking soda and vinegar.

While technically possible, it is unlikely that a clogged toilet will fix itself. Clogs caused by water-soluble materials like toilet paper or human waste may eventually break down in the water, allowing flow to resume. However, this can take time, and any clogs from solid objects require manual removal. In most scenarios, especially if you don't have another bathroom, it is best to fix the clog yourself or call a plumber.

No, it is not advisable to spray pesticides down the drain in your home. Most drinking water and wastewater treatment systems are not properly equipped to remove pesticides. Should pesticides infiltrate waterways, they can cause harm to plants, fish, or other living things. In most areas, pouring pesticides down the drain is illegal due to the potential harm it causes. 

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.