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TRUSTED BY COS COB, CT HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon79
    Verified house leveling services reviews

Top-Rated House leveling pros in Cos Cob - Updated Nov 2026

Avatar for Ron's Masonry
Ron's Masonry
5.0(
30
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For BusinessConcrete Foundation - Repair

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1995

Emergency services offered

Small jobs welcome

"Ron and his assistant arrived on time to do some fall cleanup landscaping at my house. What would have taken me three days to do, plus hauling away the debris, took them under two hours. It was the very best money I ever spent - more so because I got to meet such lovely people, but also because they helped me a great deal. I will be calling them in the spring for a clean up and masonry work."
Walkway
Steps
Footing
Walk
Walk

+36

Response time1 day
Response rate86%
28 neighbors recently requested a quote
Avatar for Connecticut Basement Systems, Inc.
Connecticut Basement Systems, Inc.
4.3(
589
)
Concrete Foundation - RaiseConcrete Foundation - Repair

Serving Cos Cob, CT and surrounding areas

Approved

In business since 1987

Free estimates

Warranties offered

"CT basement did a phenomenal job finishing our basement and we could not be happier with the results. They made every step of the process from design to the finished project simple and straightforward, everybody was easy to work with and made our opinions and needs the top priority and they were able to perfectly translate our vision into the final product. This was a fairly large project involving finishing 1200sq ft with an office, gym and full bathroom and their experience and expertise was obvious. They definitely understand the specific needs of a basement while making it look like any other room in the house. We would use them again in a second, we’ve even been joking about tearing down the rest of the house and just living in the basement!"
Additional Photos
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Additional Photos

+12

158 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for Groundworks
Groundworks
4.9(
13
)
Concrete - Injection Leveling - MudjackingConcrete Foundation - RaiseConcrete Foundation - Repair+1 more

Serving Cos Cob, 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

380 neighbors recently requested a quote
Avatar for Leo Masonry
Leo Masonry
4.0(
20
)
Concrete - Injection Leveling - Mudjacking - For Business

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2004

Free estimates

Small jobs welcome

"Leo (the owner) treated us outstanding from beginning to end of job at our Southport, CT., home. He is a consummate professional who appeared at our home to install a bluestone patio and walkway, with his professional team of four masons. Always consultative, professional, patient and polite, Leo and his team were a pleasure and know exactly what they are doing. We highly recommend Leo's Masonry and give them a high rating for the excellent and maticulous Masonry workmanship! A++++++++++"
pool house
concrete
stone wall & stairs
pool
pool

+3

Response time1 day
Recommended by94%of homeowners
Sonart Construction Corp.
2.3(
7
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For BusinessConcrete Foundation - Raise+1 more

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

Avatar for Tiger Luxury home improvement
Tiger Luxury home improvement
4.8(
50
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Cos Cob, CT and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"Beautiful job! Painted the outside of our entire house. Old clapboard had to be stripped down to the wood. Lots of trim work using different colors. Plaster experts! They repair plaster and paint it. Excellent job on the interior rooms. Very reasonable pricing. Everything was left clean and neat."
Additional Photos
Additional Photos
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Additional Photos

+104

Recommended by95%of homeowners
Avatar for M&J Construction
M&J Construction
5.0(
37
)
Find a Custom Home Builder

Serving Cos Cob, CT and surrounding areas

In business since 2000

Free estimates

"Max and his team did a wonderful job rebuilding our porch. He guided us through the process of selecting materials and design. The work team left everything tidy during the project and did not make much noise considering the work which was done. Max responded quickly to our questions throughout the process and was a real pleasure to work with. We have received many compliments on the outcome of the project. The porch looks great and really adds to the appeal of the house."
Additional Photos
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Additional Photos

+40

Recommended by100%of homeowners
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House Leveling FAQs, answered by experts

Mudjacking can be an expensive foundation repair process, but in many cases, it’s well worth the investment. This is especially true if you’re lifting a portion of sunken foundation slab back into place. In that case, mudjacking can help avoid major structural damage and even home collapse by restoring the integrity of your structure with minimally invasive procedures. Mudjacking a concrete patio, walkway, or sidewalk can be worthwhile because it removes tripping hazards and makes your outdoor area more aesthetically appealing.

Generally speaking, push piers—or steel piers—are the best option for underpinning, as they reach down to solid bedrock to find support for your foundation rather than relying on soil, which could be subject to the same issues as the soil directly below your foundation. However, the best underpinning method for your home depends on your location, how far down the bedrock is, and the type of soil in your area. Helical piers are usually the best option for sandy soil or in areas where the bedrock is too deep to use steel piers.

Mudjacking restores level surfaces, prevents further damage, and is more cost-effective than a full replacement.

It’s best not to perform mudjacking in the winter unless the ground temperature remains above freezing. Freezing temperatures can cause the slurry to harden too quickly, compromising its strength and longevity. Concrete is also more susceptible to cracking and splitting in cold temperatures, so there’s a higher risk of damaging the slab during the drilling and lifting process in winter.

The polyurethane used for polyjacking will expand and cure in 15 to 30 minutes. After that point, your slab will be safe to walk on and even drive on in the case of a sidewalk or concrete driveway. Double-check with your concrete lifting specialist to confirm a curing timeline, as products can differ.

The Cos Cob, CT homeowners’ guide to house leveling services

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