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    Verified french drain services reviews

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

Avatar for Quality 1st Basement Systems, Inc
Quality 1st Basement Systems, Inc
4.6(
230
)
Foundation Drainage - Install or ReplaceBasement Drainage Channels - Install

Serving Conowingo, MD and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"Great. They responded quickly, explained things in detail, provided lots of options depending on our finances. The product was installed timely and exactly as specified. So far the French Drain has been working fine however we have not have any major storms or flooding to test that out."
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+129

Response time10 hrs
Response rate100%
22 neighbors recently requested a quote
Avatar for Basement Waterproofing Nationwide Inc
Basement Waterproofing Nationwide Inc
4.6(
188
)
Basement Drainage Channels - InstallFoundation Drainage - Install or Replace

Serving Conowingo, MD and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"The entire process went extremely well. The estimate was very clear about the scope of work, the crew was professional, on time and carefully about reducing disruption/mess and our basement is dry, as promised. They even went above and beyond and fixed a downspout outside so water would flow away from the house. Once the job was finished, the company rep came out to walk through with us and answer any questions. I have no doubt that if a problem did arise, they'd fix it."
Additional Photos
Response time2 days
12 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Quality 1st Basement Systems, Inc.
Quality 1st Basement Systems, Inc.
4.7(
113
)
Basement Drainage Channels - InstallSump Pump or Interior Foundation Drains - Install

Serving Conowingo, MD and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"I had water coming into my basement from somewhere and I figured it was from a glass block window. Basement Systems USA came out and looked in the basement and at the window from the outside to discover there was no drain in the well and the water was filling up the well from underneath because the water had no where to go and then found its way into the basement. They drilled a hole from the the window into the basement. They attached a channel to the wall and installed a french drain leading to the sump pump. A new, stronger sump pump was installed. Luckily, I got the work done before the rain came the next day. The next day it rained and the basement was dry. Morgan explained the system to me after all the work was done. The work was done neatly and cleanly."
Show Booth
Tough day
Found it in a crawlspace
What is it?
Found it in a crawlspace

+142

Response time1 day
Recommended by88%of homeowners
Avatar for Mr. Rooter Plumbing
Mr. Rooter Plumbing
4.4(
13
)
Drain Clog or Blockage - ClearDrain Clog or Blockage - Clear - For BusinessDrain Line Breakage - Camera Locate+2 more

Serving Conowingo, MD and surrounding areas

Approved

In business since 2017

Emergency services offered

Warranties offered

"The entire experience went really well. Scheduling the appointment was a breeze and able to be set at a convenient time for me. Before the technician arrived I received a text message and a phone call with the name of who I should be expecting. They arrived on time and placed their shoe covers on before entering my home. Zach then proceeded to ask if I had any concerns or problems before beginning my plumbing inspection. He checked all of my pipes and drains as well as toilets and water heater. Zach showed me a picture of a pipe that was starting to rust under my sink to make me aware, but mentioned it wasn't something that needed to be done that day. He then informed me of the age and average life of my water heater so I could begin planning for the future. At the end I decided one of my toilets needed to be replaced. He had exactly what I wanted on his truck and was able to complete the job in a timely manner. They left my home as if no one had been there with cleanliness. I will certainly use Mr. Rooter plumbing again in the future."
Plumbing Project
Gas Water Heater in a very tight spot in a basement.
Tankless Water Heater Installation in Middletown, De
Natural Gas Water Heater Installation In Wilmington, DE
Propane Water Heater Installation In Newark, DE

+1

4 neighbors recently requested a quote
Recommended by70%of homeowners
Avatar for Waterproofing One
Waterproofing One
4.7(
152
)
Basement Drainage Channels - InstallFoundation Drainage - Install or Replace

Serving Conowingo, MD and surrounding areas

Approved

In business since 1999

Free estimates

Warranties offered

"Had a good experience overall. They had an opening in the schedule so were able to start quickly. Property had some plumbing buried in the floor that the crew had to work around and it was all done without any issues. Crew was professional and easy to work with. Haven't had any water issues since the drain and sump were installed several months ago--despite several big rains."
Additional Photos
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+7

6 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Best Buy Waterproofing, LLC
Best Buy Waterproofing, LLC
4.4(
155
)
Foundation Drainage - Install or Replace

Serving Conowingo, MD and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"I had a great experience with Best Buy waterproofing. I contacted them for inspection due to water rising underneath my tile in the basement. They responded very quickly and had someone out for the inspection a day later. Ed completed my inspection and was very informative and communicative throughout the whole process. He didnâ t try to scare me into getting any services and was very patient with me. Any questions I had he was on it and available. When I made my final decision it was quick and a painless process. The crew cleaned up well and walked me through the work they had done. They installed a new drain and sump pump. Might I add they made my installation very esthetic by placing the line in the wall to hide the pipes when the dry wall is replaced. I will definitely recommend to friends and family!"
Response time2 days
Recommended by98%of homeowners
Avatar for JES Foundation Repair
JES Foundation Repair
4.5(
1,449
)
Sump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Conowingo, MD and surrounding areas

Approved (Corporate)

In business since 1993

Free estimates

Emergency services offered

"JES is great!! They fixed our basement and installed a French drain and a sump pump. The crew was Antonio Williams, Melvin Riley, Ray Barefoot, and Billy Alcazar. They are all professional and top notch. I would hire them again."
Protect Your Basement
Correct Your Wet Basement
Waterproof Your Basement
Protect Your Concrete
Polyurethane Foam Injection

+12

481 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Always Waterproofing
Always Waterproofing
4.2(
427
)
Foundation Drainage - Install or ReplaceBasement Drainage Channels - Install

Serving Conowingo, MD and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Credit card accepted

"We had them install an indoor sump pump (including digging the pit and pipes) and some basement walkout drain installation. They did high-quality work and finished quickly. Their price was the best of 5 quotes I received and so the value was high. The only thing that was not perfect was that communication was slow, sometimes they did not respond to texts, but they were good when they responded, and they showed up on time. Overall, 9/10, highly recommend!"
Updated concrete deck
Cozy front porch
Response time10 hrs
390 neighbors recently requested a quote
Recommended by90%of homeowners
F.H. Furr Plumbing Heating AC & Electrical
5.0(
5
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera Locate

Serving Conowingo, MD and surrounding areas

Approved (Corporate)

Emergency services offered

Coastal living on Delaware’s Eastern Shore means your cooling and heating systems face constant challenges from salt air, moisture, and temperature swings. Whether you're by the beaches, inland, or up in New Castle, our HVAC specialists deliver solutions that stand up to local conditions while maximizing your home's efficiency. Plus, we tackle all plumbing and electrical issues when your home needs it most. Book your service with F.H. Furr today and enjoy quick, reliable comfort backed by licensed technicians.

5 neighbors recently requested a quote
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French Drains FAQs, answered by experts

A clogged air gap can cause a dishwasher not to drain. There are, however, other potential issues that can lead to improper drainage. For example, if you have attached the air gap to a garbage disposal and forgotten to remove the knockout plug, wastewater may backflow into the dishwasher. Check that the air gap is installed properly, and then look for clogs in the air gap and dishwasher filters. 

There are many things that could cause your basement floor drain to back up. One significant cause of a drainage backup is flushing non-flushable items, such as wipes, paper towels, and facial tissue. Other causes of a backed-up basement floor drain include tree roots impeding the drain pipe or an accumulation of hair, oil, and grease. 

With a one-way cleanout, you can access your sewer line from one direction. Depending on the way it curves, a plumber can either access the side of the pipe that goes into your home or the side that goes to your yard. On the other hand, two-way cleanouts allow pros to access both sides of the sewer line, thanks to their dual-pipe design (they’re usually U-shaped).

A professional drain cleaner is a plumber or specialized drain cleaner with the necessary tools to unclog drains and tiles to keep waste water flowing out to the septic tank or city sewer for processing. Keeping wastewater from backing up into your home helps keep you and your family safe from potential contamination and sickness. These pros can help resolve nearly any drain situation in a safe and efficient manner.

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 Conowingo, MD homeowners’ guide to french drain services

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