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  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon81
    Verified house leveling services reviews

Find House leveling pros in Darien

Avatar for JNC Contracting Associates, LLC
JNC Contracting Associates, LLC
5.0(
19
)

Serving Darien, CT and surrounding areas

Approved

In business since 1973

Free estimates

Warranties offered

"JNC Contracting did a wonderful job on our house in New Fairfield. They created an art studio, as well as children's playroom and beautiful stone and marble full bath addition. They were timely, neat, professional and paid attention to detail - will certainly use them again in the future."
Before Addition
After Addition
3,000 SF Addition Lake Home
3,000 SF Addition Lake Home
3,000 SF Addition Lake Home

+186

Response time2 days
2 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Groundworks
Groundworks
5.0(
7
)

Serving Darien, 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

324 neighbors recently requested a quote
Avatar for Barbot Construction
Barbot Construction
4.0(
59
)

Serving Darien, CT and surrounding areas

Approved

In business since 1984

Free estimates

Credit card accepted

"I really appreciate the good quality job you did at my house. I are very happy with the kitchen that came out. Once we get the money we will for sure use you again for are bathrooms. Thanks again and i also told my neighbor about you. The team came the next day to give an estimate and i signed on the spot."
foundation
foundation
foundation
foundation
BASEMENT REMODEL/ADDITION

+174

Response time1 day
7 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for AA Outdoor Services, LLC
AA Outdoor Services, LLC
3.9(
33
)

Serving Darien, CT and surrounding areas

Approved

In business since 1990

Free estimates

Small jobs welcome

"Vinny is a very friendly and professional guy who we really enjoyed working with. The quality of his work is excellent- we used him for our sidewalk and refurbishing the rod iron railings. Overall positive experience with him and the final project turned out great! We would definitely recommend him and will be using his services again in future projects."
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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Showing 1-10 of 255
House Leveling questions, answered by experts

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

A slurry of cement, sand, and water is injected beneath the concrete to lift and stabilize it.

Most states and municipalities don’t require concrete mudjacking companies to carry a specific license, but they usually need to have a general contractor’s license, and they should be fully insured. The only exception is if the mudjacking company provides foundation repairs as well, or if it offers mudjacking for home foundations. In that case, they will typically need a foundation repair contractor’s license. You can check state requirements and then use Angi’s license lookup tool to confirm that a company is properly licensed to provide mudjacking services in your area.

Pros often use mudjacking or polyurethane foam injection to level a sunken concrete patio. Both methods lift the slab by filling voids beneath it. After properly compacting the soil beneath it to prevent future settling, the concrete may need to be removed and re-poured for severe sinking.

Polyjacking and mudjacking can both be effective solutions for sinking concrete, but they have key differences. Polyjacking, which uses expanding polyurethane foam, is often considered a better option because the foam is significantly lighter than the cementitious material used for mudjacking. This reduced weight puts less pressure on the underlying soil and lowers the risk of future sinking. Polyjacking is suitable for any sinking concrete slab, while mudjacking is typically only recommended for non-structural concrete, such as sidewalks, patios, pool decks, and driveways. The primary drawback of polyjacking is its cost, which can be up to four times higher than mudjacking—as much as $25 per square foot compared to a maximum of about $6 per square foot for mudjacking.

The Darien, CT homeowners’ guide to house leveling services

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