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Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
397
)

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

11 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Leonard's Masonry Service, LLC
Leonard's Masonry Service, LLC
5.0(
36
)

Serving Cornwall, CT and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Leonard expertly repaired my slate walks and patio that had lifted and settled over time. The process included power washing the stones, laying and leveling fresh stone dust, then replacing the stone -- including replacing those that had broken. The pricing was fair and the work outstanding. I will use Leonard again and recommend him to friends and neighbors."
Paver patio
Response time4 hrs
Response rate95%
6 neighbors recently requested a quote
Avatar for Perez Asphalt & Paving
Perez Asphalt & Paving
4.9(
45
)

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Efraim Perez is the best I've ever hired for crack repair and filling. He responded quickly, arrived exactly on time, stood behind his work, was pleasant and professional. He's great, insured, and solid. I would hire him for other projects too. Highly recommend."
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+20

Response time11 hrs
4 neighbors recently requested a quote
Recommended by79%of homeowners
Avatar for Groundworks
Groundworks
5.0(
7
)

Serving Cornwall, CT and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"Aaron Lenker add Corbin Gillichbauer of Groundworks leveled concrete walks around my corner lot in Montoursville Pa. They arrived around noon time and were finished about 5 1/2 hours later. They did their work very professionally. They did an excellent job. I would rate their work 5 of 5 stars."
Foundation
Foundation
Foundation
Concrete
Concrete

+16

295 neighbors recently requested a quote
Avatar for American Dry Basement Systems, LLC
American Dry Basement Systems, LLC
4.9(
118
)

Serving Cornwall, CT and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"They did an excellent job of fixing a water problem that we had our garage. I am pleased with the results and highly recommend them."
Drainage Trench
Jackhammer
Mixing SuperCrete
Compress Wash Stones
Spreading SuperCrete

+7

Response time11 hrs
4 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Husky Masonry And Paving
Husky Masonry And Paving
4.9(
15
)

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

Free estimates

Customers say: True professional

"Outstanding! John took our vision and brought it to life in a way that went beyond anything we could have imagined. What could have been a simple repair turned into a complete transformation. The stonework they created not only improved the look of our home but made it stand out in the neighborhood. People keep stopping in front of the house to admire it. The quality, craftsmanship, and attention to detail are second to none."
Patios Project
Driveways - Asphalt Project
Patios Project
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+17

24 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Budget Dry Waterproofing, Inc.
Budget Dry Waterproofing, Inc.
4.4(
240
)

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2006

Free estimates

Emergency services offered

"They did a great job installing a new basement hatchway and repairing the foundation. They did an excellent job and delivered their services on time and on budget with no surprises. We were charged exactly what we were quoted. I would highly recommend them."
Drain at base of bilco
going up on the wall
finished wall area
completed
finished sump pump area

+37

Response time1 day
119 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Leo Construction LLC
Leo Construction LLC
5.0(
6
)

Serving Cornwall, CT and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"Leo Construction LLC called ahead, showed up on time, located and searched my concerns and fixed on the spot without hesitation. The father and son team were courteous and professional. I am very happy with their work and will hire them again when the need arises. Thanks guys!"
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+10

Recommended by16%of homeowners
Avatar for Ervin H Construction LLC
Ervin H Construction LLC
5.0(
8
)

Serving Cornwall, CT and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: True professional

ERVIN H CONSTRUCTION LLC is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. We look forward to working with you!

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+31

Recommended by100%of homeowners
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Foundation Repair questions, answered by experts

Some foundation repairs are permanent, like underpinning and exterior drainage systems like the French drain. These fixes address the underlying problems—insufficient support from the soil and hydrostatic pressure on your foundation walls, respectively—so they can last for many decades, making them “lifetime fixes.” There are other solutions to address these issues that will last for up to a decade, making them temporary. These include slabjacking to raise concrete slabs back into place and dampproofing to reduce the water in the soil that interacts with the concrete foundation.

You can use a level or straight-edge to test for plumb foundation walls and a level slab, a level or a ball to check for sloping floors inside your home, and a hygrometer to look for moisture in your underhome area. Aside from these DIY tests, it’s important to get a foundation repair specialist or structural engineer to test the foundation to see if it’s supporting your structure properly. They can determine if the loads on the concrete are uneven or need reinforcement.

If your foundation repair claim gets denied, the first step is to carefully read over your policy and denial letter so you understand the reason for the denial. Then, gather evidence and documents that can support your case and appeal the denial with your insurance company. If your insurer does not eventually honor your claim, you may want to file a complaint with the insurance department in your state. In some cases, it may make sense to work with an attorney and file a lawsuit.

If your foundation isn’t properly square, there’s a chance that anything you built before detecting the issue may need to be torn down. A major miscalculation could leave some walls of your home unsupported. 

If your concrete steps have crumbled or chipped, you can fix them by removing any chips or flakes, cleaning and wetting the affected area, applying a concrete bonding agent, and finally applying new concrete, usually in the form of Portland cement. For widespread damage, you can consider concrete resurfacing instead. For fixing concrete spalling that has led to deep damage, you might need to remove damaged material, add structural supports, and pour new concrete into a mold.

The Cornwall, CT homeowners’ guide to foundation repairs

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