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

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

Last update on February 09, 2026

Find Concrete mudjacking pros in Knox

Avatar for JM Concrete Leveling LLC
JM Concrete Leveling LLC
4.9(
18
)
Concrete - Injection Leveling - MudjackingConcrete - Injection Leveling - Mudjacking - For Business

Serving Knox, PA and surrounding areas

In business since 2019

Free estimates

Emergency services offered

"Fantastic! It looks great, and you cannot tell anything was done to the concrete; it seems like the original sidewalk."
Raised 3 1/2 inches
Concrete Leveling Project
Concrete Leveling Project
Concrete Leveling Project
Additional Photos

+13

Recommended by100%of homeowners
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Avatar for C&K Hauling and Excavating
C&K Hauling and Excavating
3.2(
3
)
Concrete - Injection Leveling - Mudjacking - For Business

Serving Knox, PA and surrounding areas

In business since 2020

Free estimates

Credit card accepted

"The hauling contractor was pleasant to work with & had all the proper equipment to handle hauling junk. Yes-would hire again."
Our work
Our work
Our work
Our work
Our work

+9

Response time2 days
Recommended by66%of homeowners
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Gia Construction and Masonry, LLC
New to Angi
Concrete - Injection Leveling - Mudjacking - For Business

Serving Knox, PA and surrounding areas

In business since 2020

Gia Construction and Masonry is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.\n

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Concrete Mudjacking questions, answered by experts

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.

Many contractors offer warranties for their work. Confirm terms before starting the project.

Mudjacking typically takes 24 to 72 hours (one to three days) to dry and cure completely before you can resume normal use. The total drying time can vary depending on the size of the project. Because the slurry mixture contains cement, it needs to harden fully to prevent the concrete slab from shifting under added weight. You should avoid walking on the concrete or placing heavy items like furniture or vehicles on the surface until it has fully set. Your concrete contractor can provide a precise timeline. As a point of comparison, if you opt for polyjacking, the polyurethane foam can dry in minutes, but it's recommended to wait about an hour before use.

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.

Polyjacking can be a permanent solution to sunken concrete if you also address the underlying issue—like poor drainage—at the same time. The polyurethane material itself can last as long as or even outlast the concrete you’re lifting it with. Your sunken concrete issue will likely return if you don’t couple polyjacking with proper drainage to prevent future soil movement and sinking.

The Knox, PA homeowners’ guide to concrete mudjacking services

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

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