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    Average homeowner rating
  • Verified reviews icon12
    Verified foundation repairs reviews

Top-Rated Foundation repair specialists in Prospect - Updated Nov 2026

Avatar for Arnold's Masonry and Construction LLC
Arnold's Masonry and Construction LLC
4.8(
176
)
Concrete Foundation - Repair

Serving Prospect, CT and surrounding areas

Approved

Super Service Award Winner

In business since 1973

Free estimates

Emergency services offered

"Arnold was amazing. He explained each step of the process and I'm pleased with the results. We had had another mason try to repair these steps and it did not go well. Arnold not only fixed it but explained how to prevent the same damage from happening again in the future."
Masonry Project
Masonry Project
Landscaping Project
Landscaping - Hardscaping & Pavers Project
Landscaping - Hardscaping & Pavers Project

+118

Response time8 hrs
1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationFoundation Drainage - Install or ReplaceConcrete Foundation - Raise+1 more

Serving Prospect, 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."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+12

176 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Leonard's Masonry Service, LLC
Leonard's Masonry Service, LLC
5.0(
36
)
Poured Concrete Wall - Repair

Serving Prospect, 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%
Recommended by97%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Foundation, Basement or Crawlspace - Waterproofing / EncapsulationConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving Prospect, 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

433 neighbors recently requested a quote
Ervin H. Construction, LLC
5.0(
23
)
Poured Concrete Wall - Repair

Serving Prospect, CT and surrounding areas

Approved

In business since 2021

Free estimates

Customers say: Quick response

"Ervin H Construction rebuilt our retaining wall that collapsed due to years of erosion. The wall was 60 feet long and 12 feet high. He came up and gave us a fair quote, told us what the project would entail, and the anticipated start date. He followed up and started right on time and came everyday to work on our project. In a world where it is sometimes difficult to find anyone who is responsible or wants to work, it is a breath fresh air that Ervin and his crew were there to help us. His work ethic is phenomenal. The project was completed on time and he fixed our yard up to the condition it was in before he started. We are so happy to have made a relationship with Ervin and his company."
Response time2 days
2 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Husky Masonry And Paving
Husky Masonry And Paving
4.9(
17
)
Concrete Foundation - RepairFoundation Drainage - Install or Replace

Serving Prospect, 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
Additional Photos
Additional Photos

+17

5 neighbors recently requested a quote
Recommended by70%of homeowners
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Foundation Repair FAQs, answered by experts

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.

While it can be difficult to identify a bad foundation at first glance, look for large horizontal cracks, discoloration, bulging basement walls, or signs of water damage. You may also see large gaps between the home and the foundation on the outside or signs of pooling water from a recent storm.

Cracked tiles can mean foundation problems. Fortunately, most of the time, cracked tiles happen as a result of accidental damage. It is important to determine the cause of cracking to rule out underlying foundation issues. If your tiles were not damaged due to dropped items, heavy loads, poor installation, or inferior tile quality, and the cracks are spreading throughout your flooring and not limited to just one area, you may be dealing with foundation problems. These can include drainage problems and even foundation failure, so it is vital to call a licensed contractor to assess the issue and ensure your foundation is safe.

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.”

A slab-on-grade or slab foundation is a great option in many areas—usually in warm or moderate climates—and has been a successful foundation style for many decades. Slab foundations don’t require excavation or concrete block wall construction, so they’re the least expensive foundation type. They’re also the fastest to construct and don’t have many issues with moisture or water intrusion. However, they don’t give you extra storage space or potential living space like a crawl space or basement would, and they’re not ideal in colder areas where utility lines can freeze and frost heave can cause major damage.

The Prospect, CT homeowners’ guide to foundation repairs

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