Does expanding foam lift concrete?

• <div><p>Yes, expanding foam (also known as polyurethane foam) can lift concrete. This approach, called polyjacking, involves injecting the foam rather than concrete slurry to fill voids and raise the concrete slab back into place. It’s often faster and requires smaller drill holes than traditional mudjacking, though it may come at a higher cost. Some contractors also prefer <a href="https://www.angi.com/articles/mudjacking-vs-polyjacking.htm">polyjacking over mudjacking</a> for more damaged and delicate slabs.</p></div>

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Q: Is concrete leveling covered by insurance?

• <div><p>Concrete leveling is not typically covered by insurance. In some cases where the shifting concrete is caused by a natural disaster or storm, you may be able to file an insurance claim if your policy specifically covers those circumstances. In most cases, though, you&rsquo;ll pay out-of-pocket for concrete leveling.</p></div>

Q: How long does it take for polyjacking to cure?

• <div><p>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. </p></div>

Q: Is there an alternative to underpinning?

• <div><p>There is no real alternative to underpinning, although mudjacking and polyjacking are other repair methods that can add support from underneath your foundation. Rather than placing supportive piers under your structure, these involve pumping a material under your slab to lift a sunken section back into its original position. Polyjacking, in particular, is sometimes a suitable solution for stabilization issues under slab foundations, but underpinning is often accepted as the best and most permanent solution.</p></div>

Q: How much foundation sinking is too much?

• <div><p>Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs. </p></div>

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Verified Reviews for Concrete Leveling pros in Kaiser, MO

*The Angi rating for Concrete Leveling companies in Kaiser, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Leveling needs.

*The HomeAdvisor rating for Concrete Leveling companies in Kaiser, MO is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Concrete Leveling needs.

Last update on July 22, 2025

Reviewed in July 2025
We paid a previous contractor to put in a retaining wall, fence and level our backyard, which was a 5 foot steep hill at the time. After the old contractor put up a nearly finished fence, 6 months later it was left incomplete and rotting. We hired the Lake Man and his crew to fix the mess that...
Lake Man
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Reviewed in July 2025
Spencer and his crew came over and did an amazing job. They also took care of a couple other drainage and run off issues I didn’t even know about until we looked at the project. The crew showed up and got the project completed ahead of schedule even with Mother Nature fighting us a few days....
Grizzly Excavating Services LLC
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Reviewed in May 2025
Came when they said and performed all work quickly and beautifully. Their price was half of what Clary Concrete bid. I advise you to check them out if you need any concrete work in Lake Ozark area.
Exception Home Solutions
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Reviewed in April 2025
Andy Helped take on multiple projects on multiple properties. He Removed multiple roof vents and replaced with a ridge vent. Fixed siding left in disarray by previous contractor. Installed new siding. Hung chain link gate. Fix chain link fence. Helped build 30x96 foot greenhouse with ridge...
AAA Maintenance and Remodeling, LLC
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Reviewed in April 2024
Greg is amazing to work with. He responded to every call/text. He communicated throughout the build. The quality was great-no cut corners. He poured piers, leveled everything-the finished product is perfect and his bid was right on, with very little waste! We have hired him two more...
GE Construction LLC
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Reviewed in September 2023
they were wonderful and we were very pleased with how great the concrete pool deck and walkway looked!
Ozark Professional Carpet & Floor Care
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Reviewed in March 2023
Rodney does superb work and is very fair on pricing. He communicated timely and extremely well and gave great advice. He cleaned my concrete block retaining wall and my sidewalks and concrete decks despite the lousy weather. I will hire him again next year to keep his work fresh. Heâ s a pro!
B.I.C. Business Services, LLC
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Reviewed in March 2023
Response to request for estimate was quick and work began the day after signed contract. The new retaining wall and paver patio are beautiful allowing us to use the backyard for entertaining. They leveled an area for an above ground pool and sodded the front yard. They did an excellent job,...
JC Lawn Service
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Reviewed in September 2021
He leveled a site for my 40x60 building and dug in all the septic.
Hall Excavating
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Reviewed in August 2021
Tanner & Christy were super fantastic through the whole process of our exterior hardscape project. We built a tri-level rear deck with heavy wood columns & a surrounding walkway. Key-Con came out in an afternoon and had all the column footers poured as well as the walkway forms in place. The...
Key Concrete LLC
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Find Concrete leveling pros in Kaiser

Key Concrete LLC

4.9(

)

Serving Kaiser, MO and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"They were great throughout the whole process. It was great to be able to use one company for machine excavation, all dirt work, footings, foundation and back filling."

+32

Response time2 days

Response rate100%

1 neighbors recently requested a quote

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Foundation Recovery Systems

4.4(

493

)

Serving Kaiser, MO and surrounding areas

Approved (Corporate)

Super Service Award Winner

In business since 1992

Free estimates

Warranties offered

"Trenton and Miguel were very friendly, punctual and did a great job raising the back concrete steps and leveling the sidewalk. Since it rained, they are coming back to do the caulking."

+16

Response time1 day

96 neighbors recently requested a quote

Recommended by89%of homeowners

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Advanced Foundation Repair & Replacement

5.0(

)

Serving Kaiser, MO and surrounding areas

Emergency services offered

"He was very professional and very helpful. I would hire him if I needed too."

Recommended by100%of homeowners

Serving Kaiser, MO and surrounding areas

In business since 2015

Free estimates

Emergency services offered

Excavation\nConcrete flat work\nConcrete walls\nConcrete footings & slabs\nClearing & grubbing\nDriveways\nSiding & soffit\nLaminate flooring\nLandscaping\nRemodeling

Recommended by100%of homeowners

Serving Kaiser, MO and surrounding areas

Credit card accepted

"The job went really good. Driveway was a lot smoother when finished. This job was adding gravel on our driveway. Have seen some of the concrete work done by D&B construction. The concrete jobs were very good also."

+18

Recommended by100%of homeowners

Serving Kaiser, MO and surrounding areas

In business since 2018

Free estimates

BK Construction is your trusted partner for all your construction needs. With our expertise and commitment to excellence, we go above and beyond to ensure your satisfaction. Contact us today for top-notch service in concrete floors, patio, drives, repairs and more-you can rely on.

Recommended by100%of homeowners

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Jones Excavating & Construction LLC

5.0(

)

Serving Kaiser, MO and surrounding areas

In business since 2019

Free estimates

Emergency services offered

Jones Excavating & Construction LLC is your one stop shop for anything and everything that has to do with your property! Call us today!

Recommended by100%of homeowners

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All In One Call

New to Angi

Serving Kaiser, MO and surrounding areas

In business since 1993

Free estimates

Credit card accepted

over 25years of experience 5% off labor for new stall ashphd parking lot

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Maples & Sons Concrete, LLC

New to Angi

Serving Kaiser, MO and surrounding areas

We are a family owned business. Laying strong foundations for generations and generations to come. You can check us out on YouTube, TikTok and Facebook. @maplessonsconcrete

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Wilson Contracting & Painting

New to Angi

Serving Kaiser, MO and surrounding areas

In business since 1981

Wilson Contracting & Painting with over 25 years experience and generations of knowledge. We provide the best quality services in the home improvement industry. Wilson Contracting & Painting is a locally owned and owner operated business taking great pride in providing quality work at the lowest cost. Allow us to show you how our commitment to personal service and expertise will help you with your home improvement goals. We stand behind our work years after the work is complete.\nPlease contact us today to realize your vision with all your home improvement needs\n

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Showing 1-10 of 11

Concrete Leveling questions, answered by experts

Concrete leveling is not typically covered by insurance. In some cases where the shifting concrete is caused by a natural disaster or storm, you may be able to file an insurance claim if your policy specifically covers those circumstances. In most cases, though, you’ll pay out-of-pocket for concrete leveling.

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.

There is no real alternative to underpinning, although mudjacking and polyjacking are other repair methods that can add support from underneath your foundation. Rather than placing supportive piers under your structure, these involve pumping a material under your slab to lift a sunken section back into its original position. Polyjacking, in particular, is sometimes a suitable solution for stabilization issues under slab foundations, but underpinning is often accepted as the best and most permanent solution.

Most houses are expected to settle over time, but foundation sinking of more than a few inches or uneven sinking of more than an inch for every 20 feet is cause for concern. Any significant or uneven sinking should be assessed by a professional to determine the cause and perform any necessary repairs.

Yes, expanding foam (also known as polyurethane foam) can lift concrete. This approach, called polyjacking, involves injecting the foam rather than concrete slurry to fill voids and raise the concrete slab back into place. It’s often faster and requires smaller drill holes than traditional mudjacking, though it may come at a higher cost. Some contractors also prefer polyjacking over mudjacking for more damaged and delicate slabs.

The Kaiser, MO homeowners’ guide to concrete leveling services

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