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 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: What is the best underpinning method?

• <div><p>Generally speaking, push piers&mdash;or steel piers&mdash;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. </p></div>

Q: Which is better for lifting concrete: polyjacking or mudjacking?

• <div><p>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&mdash;as much as $25 per square foot compared to a maximum of about $6 per square foot for mudjacking.</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 Poynette, WI

*The Angi rating for Concrete Leveling companies in Poynette, WI 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 Poynette, WI 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 September 18, 2025

Reviewed in September 2025
Boulders Concrete replaced existing wood steps with concrete steps plus added a metal railing since our yard is divided into two separate levels. They started on time and finished on time. Ted and his workers were very professional and did excellent work plus he saved me money over other bids. I...
Boulders Concrete and Construction LLC
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Reviewed in March 2025
Joel hung a large and heavy picture above stairwell. Hard to get to location. He took time to make sure it was up and level, taking special care to not hurt walls. Good Communication.
JLNL LLC
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Reviewed in June 2024
I was having an issue with the light on my garage door opener. I contacted Diamond Concrete and talked to Mike. He talked me through a few things to try on my own. When that didnâ t work, Mike came out to my home to have a look at the problem. After contacting a rep in AZ, they had me change...
Diamond Concrete Construction
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Reviewed in October 2021
This was the third major project that we hired Adam and Pat for (2 bathrooms and basement remodel), if that’s any indication of how we feel about Adam’s Handyman & Remodeling Services and the high level of craftsmanship and value they bring to the table. They’ve transformed our home in so many...
Adam's Handyman & Remodeling Service
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Reviewed in September 2021
Abner and his team were a pleasure to work with. They added a concrete pad to our existing concrete patio and did a great job. Abner communicated well and frequently, was always on time, and was cordial and polite. This also applies to his team who were very friendly. They worked fast, were...
Alpha Remodeling
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Reviewed in October 2020
I hired him to do some stamped concrete for me and turned out really well! He does great work timely manner.
Elite Concrete and Contracting, LLC
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Reviewed in June 2020
I have been more than pleased with our interaction with TJR Improvements, LLC. From start to finish, I was impressed with TJR commitment to provide the highest level of quality and service. After substantial water damage in the basement living space, TJR came in and applied the necessary...
TJR Improvements
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Reviewed in November 2019
We had a good experience. Painted our entire main level and it transformed our home. The attention to detail was obvious and the crew was friendly. We would recommend this painter.
Kahlhamer Painting, LLC
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Reviewed in May 2019
Things went very well. The four-person crew was prompt, professional and and efficient. The foreman described what was going to happen and how. The concrete walkway, front step and driveway sections that had settled over time were gently lifted and leveled using a polymer foam. After the work,...
Badger Basement Systems
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Reviewed in October 2018
I couldn't be happier with how our patio project turned out and would highly recommend Ageless Concrete. We really had no creative idea what we wanted, just a rough general idea. Aaron did a fantastic job designing a project that we both loved from the initial draft. HIs crew was excellent,...
Ageless Concrete LLC
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Find Concrete leveling pros in Poynette

BERRIOCHOA CONSTRUCTION, INC.

New to Angi

Concrete - Injection Leveling - Mudjacking - For Business

Serving Poynette, WI and surrounding areas

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Free estimates

Emergency services offered

Small jobs welcome

General contractor. Jack of all trades. \nGreat craftsmanship .\n608.800.7867

7 neighbors recently requested a quote

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Not Just Lawncare LLC

4.9(

)

Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Poynette, WI and surrounding areas

In business since 2005

Free estimates

Credit card accepted

"He did ok on the lawn and he's punctual. After my initial meeting with them the contact is sporadic. I've sent him three emails and he's only responded to one. I will continue using his services in the future."

+50

Recommended by100%of homeowners

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Custom Masonry Specialists LLC

2.9(

)

Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Poynette, WI and surrounding areas

In business since 1998

Emergency services offered

Credit card accepted

"All work completed to satisfaction"

Recommended by44%of homeowners

Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Poynette, WI and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"I am extremely pleased with the timeliness, affordability, and quality of the masonry work. Pedro and his crew were professional, courteous, and very diligent. I would happily hire him again to perform additional work."

Recommended by100%of homeowners

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Dickman Enterprises, LLC

New to Angi

Concrete - Injection Leveling - Mudjacking - For Business

Serving Poynette, WI and surrounding areas

In business since 2015

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity, and quality work. We are locally owned and operated. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business! Please contact if you are looking for spray foam insulation work in your home, building, project or pole shed.

Response time2 days

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Concrete Leveling questions, answered by experts

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.

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.

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.

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.

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.

The Poynette, WI homeowners’ guide to concrete leveling services

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

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