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Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
397
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RepairConcrete Foundation - Raise+1 more

Serving Cornwall, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"I posted an initial review on 2/21/19 on a job done on 1/11/19 to fix groundwater from coming into our basement. The drainage system and sump they installed was not collecting all the water that was coming in, as we had leaking from several areas along an uneven rock ledge. I had reached out to our salesperson by phone and email and never heard back, so I was very frustrated. About 3 weeks after I posted the review, I did get a call from Jeff Allen, one of the supervisors. To make a long story short, he sent out one of their waterproofing specialists to look at the problem. We had already hired an independent mason to try to remedy the problem but he had not yet had a chance to do the job. Jeff convinced me that CT Basement systems would do absolutely whatever it took to fix my water problem. I cancelled the independent mason. Danny, a mason from CT Basement Systems came out and used a very ingenious method to divert all the water to the originally installed water guard trough and then to the sump. It is working beautifully!! I think Danny is a genius and I am so impressed and thankful for Jeff's perseverance and kindness in making this happen. I am now a very happy customer."
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+12

13 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Leonard's Masonry Service, LLC
Leonard's Masonry Service, LLC
5.0(
36
)
Poured Concrete Wall - Repair

Serving Cornwall, CT and surrounding areas

Approved

In business since 2005

Free estimates

Emergency services offered

"Excellent work repairing my stone wall at a very affordable price. They were able to complete my project and add drainage in a days work, very responsive and professional"
Paver patio
Response time3 hrs
Response rate94%
4 neighbors recently requested a quote
Avatar for Groundworks
Groundworks
5.0(
7
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+2 more

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

318 neighbors recently requested a quote
Avatar for Husky Masonry And Paving
Husky Masonry And Paving
4.9(
15
)
Concrete Foundation - Repair

Serving Cornwall, CT and surrounding areas

Approved

Super Service Award Winner

Free estimates

Customers say: True professional

"John and his team did a great job. We contacted them to fix concrete steps in our back yard leading to our deck and he was able to provide all options for replacement, costing and timing. He was very respectful of when we wanted to get the project done and I felt like he knew exactly what needed to be done. I would highly recommend John and his team to anybody who needs masonry work."
Patios Project
Driveways - Asphalt Project
Patios Project
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+17

22 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Leo Construction LLC
Leo Construction LLC
5.0(
6
)
Poured Concrete Wall - Repair

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
)
Poured Concrete Wall - Repair

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

Yes, you can replace a cinder block foundation. If a block foundation is too severely damaged to repair cracks and other issues, replacing the entire foundation is a viable option. The job will require a professional and can take between one to seven days on average to complete, depending on how complex the problem is.

Visible cracks, scaling, flaking, and uneven surfaces indicate a bad concrete job. Additional signs vary depending on the project. You may notice poor drainage or even exposed rebar. Quality issues result from using the wrong concrete, rushing the work, or inexperienced workers completing the job.

The best way to determine if ceiling cracks are structural is to hire a ceiling contractor to inspect the cracks and provide a professional opinion. That said, you might be able to make an educated guess based on the size and appearance of the crack. Larger cracks, cracks accompanied by sagging or discoloration, and cracks that travel from the ceiling down the walls are all signs of structural issues.

Most single-story homes don't have foundations strong enough to support a second story, but they can be reinforced for an addition. A structural engineer can assess your foundation and what needs to be done to get it ready. They'll look at any cracks or unevenness in your current foundation and consider any special framing or beams your home needs, especially if it’s in a high-wind or hurricane area.

“To support a second story, many structural engineers will require that you install additional concrete piers in the crawlspace,” says Tschudi. “This involves hand excavating, pouring a large concrete footing—usually with specially coated rebar—and then building concrete piers right up to the girders.”

Foundation settlement should be a concern if you notice it happening suddenly and years after construction, if the settlement results in signs of structural damage in your home, or if it happens after a flood, nearby sinkhole, or earthquake. Some signs of severe foundation settlement that should prompt you to call a repair specialist include sloping or uneven floors, large cracks in your foundation, moisture issues or pest infestation in your basement or crawl space, and an uneven roofline.

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.