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  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon967
    Verified foundation drain installation services reviews

Top-Rated Foundation drain installation pros in Greenwich - Updated Nov 2026

Avatar for WEATHER-TITE WATERPROOFING INC.
WEATHER-TITE WATERPROOFING INC.
4.8(
100
)
Foundation Drainage - Install or Replace

Serving Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"As I did the first time I used Bob Lindsay's company, I waited six months to write my review. After withstanding nearly 13" of water from Henri and Ida, I cannot recommend this company enough. We used Bob at my first house and decided to use him again when our final walkthrough of our house revealed a wet carpet in the finished basement. Bob's guys replaced the shallow existing window wells with much deeper, galvanized ones, backfilled them with stone and piped them into a perimeter channel drain that was then flashed and cemented to the basement floor height. The sump pump pit was installed and a battery backup system was provided and wired in. The outside grading around the window wells was also redone to slope any surface water away from the foundation. Due to our Radon mitigation system, a polyurethane caulk was also used to seal the system. We remained absolutely bone-dry these last few weeks despite rain falling at 2-3" per hour in some cases. The work is efficient, his guys are extremely friendly and skilled, and despite the messiness of the job, they do a fabulous job cleaning up. There is a certain peace of mind that having this type of work done provides, and you cannot put a price tag on it, especially if you plan on finishing (or refinishing) a basement. At the end of the job, Bob was even kind enough to have one of his guys tie in a 2" piece of PVC from the floor with a cap (which I then drilled a hole in) so I can run my dehumidifier constantly without ever having to empty the bucket. We have since refinished our basement to our liking and know for certain that this was the best home investment we could have possibly made. A friend of ours has also done her entire basement with Weather-Tite and had an equally wonderful experience. Thanks Bob for saving us not once, but twice."
Response time12 hrs
21 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Greenwich, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"Honestly, I have never had such a positive experience with a contractor. they showed up on time, were friendly, polite, courteous, clean and efficient. In a single day they installed the entire system and left the place clean (within reason). This included jack hammering more than 30 feet of concrete floor and complete water ejection. Unbelievable. They will never be the cheap solution, but they are worth it!"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

169 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Sump Pump or Interior Foundation Drains - Install

Serving Greenwich, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

Groundworks is the North America's leading and fastest-growing foundation repair and water management solutions provider. Groundworks is a vertically integrated company with its own manufacturing operations and a world-class software solution, allowing us to serve our customers more effectively. From the first phone call to the annual maintenance offered, our customers have peace of mind knowing we're there with one mission to repair, protect and improve their home. For state licenses visit Groundworks.com/licensing

Foundation
Foundation
Foundation
Concrete
Concrete

+16

430 neighbors recently requested a quote
Avatar for AG Property Maintenance, LLC
AG Property Maintenance, LLC
4.6(
12
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Greenwich, CT and surrounding areas

Approved

In business since 2012

Free estimates

Offers commercial services

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

Brookfield ct
Brookfield ct
Brookfield ct
Brookfield ct
Brookfield ct

+4

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Ron's Masonry
Ron's Masonry
5.0(
30
)
Concrete Foundation - InstallFoundation Drainage - Install or Replace

Serving Greenwich, CT and surrounding areas

Approved

In business since 1995

Emergency services offered

Small jobs welcome

"Job has been completed. They arrived as scheduled, performed the work requested and cleaned up excess materials and remaining debris from the job site. As a result of the great job done on the original project, we requested that Ron's Masonry undertake a second project. They again arrived on time and completed the second project in the timeframe specified and within budget."
Walkway
Steps
Footing
Walk
Walk

+36

Response time1 day
Response rate86%
27 neighbors recently requested a quote
Avatar for Budget Dry Waterproofing, Inc.
Budget Dry Waterproofing, Inc.
4.4(
240
)
Foundation Drainage - Install or ReplaceSump Pump or Interior Foundation Drains - Install

Serving Greenwich, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"Rick did an amazing job fixing the crack in my basement foundation. The company is very professional, knowledgeable and affordable. I highly recommend this company to anyone needing waterproofing in their home."
Drain at base of bilco
going up on the wall
finished wall area
completed
finished sump pump area

+37

Response time1 day
154 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for AA Outdoor Services, LLC
AA Outdoor Services, LLC
3.9(
33
)
Concrete Foundation - InstallFoundation Drainage - Install or Replace

Serving Greenwich, CT and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

"Vincent knows the cement business. I learned a lot from him. He replaced old cement floor and driveway. He works hard for his customers even weekends when circumstances dictate. I plan to hire him again to install patio stone when I choose the material and design."
Driveway in New Haven (West Haven)
Rear entrance and parking area (West Haven)
Rear entrance and parking area (West Haven)
Step repair (West Haven)
Step repair (West Haven)

+61

Response time9 hrs
Recommended by100%of homeowners
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Foundation Drain Installation FAQs, answered by experts

The least expensive basement waterproofing methods include grading soil away from your home, installing downspout extenders on your gutter system, and applying a waterproof paint on the interior of the foundation walls. Installing a French drain is a relatively inexpensive method if you do the work yourself, although it’s labor-intensive and can be challenging to install properly.

You can DIY basement waterproofing in some ways to help save on the overall costs. If your basement isn’t experiencing a lot of water but is noticeably humid, you can try running a dehumidifier that will pull the excess water out of the air. If you notice water leaking due to outdoor drainage issues, you can add downspout extensions to keep rainwater away from your home. 

However, if the problem is more severe and requires a more extensive solution, it’s best to call a basement waterproofing professional to assess the treatment you need and install waterproofing safeguards properly. Since keeping water out of your basement is important, ensuring this job is done correctly the first time is best.

Installing a sump pump takes a bit of know-how, but it is possible to do it yourself. You’ll need to familiarize yourself with details like where sump pump water goes to avoid creating new flooding risks. If you’re doing the work yourself, it’s recommended to bring in a pro for a quick inspection afterward so you can be sure your home is protected from any water damage concerns.

Pooling or standing water in your basement should be cause for alarm and action. This indicates that there is a leak or a drainage issue, and until you repair the root of the problem, the situation will only happen again or grow in severity. It’s important to deal with water damage as soon as it occurs.

The difference between an ejector pump and a sump pump lies in their purpose and design—an ejector pump functions to remove liquid gray water and soft solid sewage waste from your home. If you have a laundry room or bathroom in your basement, an ejector pump for your sewage tank prevents sewage from backing up in your washing machine or bathroom’s drains.

A sump pump is designed to remove excess groundwater that may enter your home, either due to flooding or periods of heavy rain.

The Greenwich, CT homeowners’ guide to foundation drain installation services

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