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TRUSTED BY CORNWALL, CT HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon113
    Verified french drain services reviews

Find French drain pros in Cornwall

Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
397
)
Foundation Drainage - Install or ReplaceBasement Drainage Channels - Install

Serving Cornwall, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Our basement has a huge sloping rock in it-the foundation was built around it when the house was built in the 50's. Over the past 5-6 years, water has seeped in more and more at the top of the rock where it meets the ground right next to the foundation and rolled down the rock to the cellar floor, threatening to flow over to the finished side of the basement. First we put a new drainage system outside the house but that did not help. Five years ago we had another basement company come and they told us all we would need is a dehumidifier and that would dry up the water. We bought their big dehumidifier but nope, that did not make a dent in it, it has just gotten worse each year. I called CT Basement Systems late last fall and a very, very nice representative came, looked at the rock and the water flowing down it and was confident their system would take care of the problem. I have a friend that used them for water in her basement and she has raved about them and has never had a drop of water since her system was installed. I paid the deposit and the technicians came exactly when they said they would. They did a great job, were very professional and left the cellar area very clean in spite of all the dust that must have been generated by the jackhammering. I am very happy with the job they did. However, there has been one unexpected problem. Before the drain was put in, I had been buying absorbent socks, flood bags and all kinds of things to soak up the water. Now we just let the water course down the rock into the drain guard, which then funnels it to the sump. We discovered that some of the water drains down to our brick chimney, which abuts the big rock . Instead of continuing it's flow down the rock to the drain, some water is soaking into the gravel around the chimney and then coming out on the other side, where there is no drain guard, making puddles on the floor again. We think the rock needs a thin lip of cement to direct the flow down and away from the chimney area. So, I called the salesman. No call back. I emailed him. No reply. I called and left another message but nothing. I called the company and asked if they would give him a message to call me. No response. So, I can only surmise that they are completely uninterested in this, now that the job is done. I now have a mason coming to do the cement. It is too bad, because I was so impressed with the salesman when he came and also with the installers. I would recommend the product and the installation service beyond a shadow of a doubt. But the lack of customer service after the fact is a huge disappointment. I actually do not mind having our own mason come and do the job. If they had called me back, I would have told them that- I really just wanted to get their opinion on the problem. But they apparently just don't want to be bothered."
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+12

14 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Groundworks
Groundworks
5.0(
7
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - InstallBasement Drainage Channels - Install

Serving Cornwall, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"The gentleman who came to my home were absolutely great! Explained everything and made sure I was happy with the work every step of the way. I was nervous in the beginning but my fear subsided after Robert Charlesworth, Marcelo largo, Isaiah belcher and Johnathon Lopez made for a great experience. The attention to detail and dust control, tapping off areas they felt I wouldn’t want getting dusty exceeded my expectations! Thank you for your hard work and kindness. Trucks looked awesome new as well as tools and equipment. Great job guys!!"
Foundation
Foundation
Foundation
Concrete
Concrete

+16

293 neighbors recently requested a quote
Premium Northeast Plumbing LLC
4.9(
4
)
Sump Pump or Interior Foundation Drains - Install

Serving Cornwall, CT and surrounding areas

Approved

In business since 2023

Credit card accepted

Customers say: Quality work

"I gutted the master bathroom and redid it, hired Premium Northeast Plumbing to do all the plumbing work. Andrew the owner is awesome, professional, knowledgeable, personable and punctual. I would strongly recommend this company for any plumbing work."
Response time1 day
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Evolution home improvement
Evolution home improvement
5.0(
5
)
Drain Clog or Blockage - ClearDrain Line Breakage - Camera Locate - For Business

Serving Cornwall, CT and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

We’re a locally owned and operated company with over 15 years of industry experience.\nWe value honesty and integrity in all aspects of our business. We offer a variety of Home\nImprovement services that are customizable to each individual project. We specialize in\nhandyman/carpentry work and a variety of related service and repair projects. We pride\nourselves on the quality of our work as well as our commitment to outstanding results.\nWe look forward to building lasting relationships with our clients and guarantee your\nsatisfaction!

Living room renovation
Living room renovation
Living room renovation
Living room renovation
Living room renovation

+11

2 neighbors recently requested a quote
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French Drains questions, answered by experts

French drains may fail when they become clogged with soil granules that slip through the pores of the landscaping fabric and through the holes in the pipe. 

Over time, this debris can build up inside the pipe and prevent water flow. To prevent this failure from happening, regularly flush out your French drain and keep debris away from the inlet grate.

Yes, you can use hydrogen peroxide to unclog a drain. Instead of using a baking soda and vinegar solution, you can use baking soda with hydrogen peroxide. The process to unclog a drain is the same as with vinegar, but use 1 cup of hydrogen peroxide instead.

Baking soda and vinegar is a great solution for cleaning your sink drain; in fact, it’s our preferred method. Here’s how to unclog your drain with baking soda and vinegar: Pour in a half cup of baking soda, then 1 cup of white vinegar, and let the two bubble for 15 minutes. Then rinse out with boiling water. This method is much safer than using a chemical drain cleaner gel.

Professionals use augers, hydrojetting equipment, and cameras for precise clearing and inspection.

You can unclog a double kitchen sink by plunging the side with the garbage disposal. Cover the drain hole on the other side first to avoid creating a mess. Plunge up and down until the water starts to drain. You can also pour in baking soda and vinegar to try and dissolve a clog. 

The Cornwall, CT homeowners’ guide to french drain services

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