concrete leveling
January 5, 2022

Whether it’s on your sidewalk or your driveway, a sunken section of concrete can look unsightly and create a major tripping hazard. There are a number of ways to perform a sinking concrete repair. Here are the best ones we’ve found.

Replacing or Repairing Concrete

If you don’t want to bother with one of the repairs below, or if the concrete is cracked or otherwise damaged, the best option might be to repair or replace it. Our experts, who all know how to fix sinking concrete, can make a patch that brings the concrete back to level.

On the positive side, patches take away the tripping hazard quickly and cheaply. However, they don’t look much better than simply leaving the concrete out of level. While our team will blend your patch as much as we can, there’s no way to make it identical to the concrete you already have.

If the concrete has suffered cracking or other damage, you may want to replace it. All of our experts know how to repair sunken concrete in this way. We will help you get the best concrete product for your needs and make sure all is level before we leave.

how to fix sunken concrete

Mudjacking

Another way of performing a sinking concrete repair is to use mudjacking. In this process, we will drill small holes into your concrete. We’ll inject a “mud” – usually a mixture of sand, water, and slurry – under your sunken concrete. This fills in empty spaces below the concrete, and we keep injecting it until it raises the sunken parts.

Our professionals who know how to fix sinking concrete recommend letting this mud dry and harden for at least 2 days before you drive or walk on it. The minimum cost for bringing out our rig may be more than you want to pay to fix a small patch of sunken concrete. You can always split the cost among neighbors with similar problems, though this takes some effort to organize.

Polyurethane Foam

Finally, we can also inject closed-cell polyurethane foam under your sunken concrete. This foam performs your sinking concrete repair in a way that is similar to mudjacking, but it hardens much faster.

The process for injecting the foam is much the same as with mudjacking. Our team will drill small holes in your concrete, then inject the foam. It will expand and harden, raising your concrete. The closed-cell nature of the foam means that it should not be susceptible to breakdown by water.

Call KC Waterproofing and Foundation Repair Today!

There’s no single way to perform a sinking concrete repair. When you need someone who knows how to repair sunken concrete to come to help you decide how to fix yours, contact us at KC Waterproofing and Foundation Repair. We’ll have an expert at your door ASAP.

Our expert will assess your needs, then recommend the best way to repair your sunken concrete. We’ll start working as soon as we can so you can get your home back to normal fast!

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Satisfied Customer Reviews

KC Waterproofing did a great job installing a new sump pump and other water mitigation items. Friendly crew, arrived each day as planned and finished in just 2.5 days!
A sump pump was installed very quickly.
Gerry and Davan were excellent. They protected the house and basement from extra dust and just going in and out to get the tools.
Digging up the yard to install the pipe...they replaced the sod and cleared the extra yard waste. Also they were very friendly with our dog.
Mario was great. Very upfront about any issues and possibilities to move forward. Would call again. Thanks!
Very happy with the work KC Waterproofing did for us. Jessie and Melvin were very efficient, courteous, and happy to answer any questions we had. The repair was very thorough and we feel relieved this will address the foundation issues we had.
Mario was my tech. Thorough and answered all questions without hesitation.
Mario was super friendly and professional. The job was done quickly. We are very happy with the work and have peace of mind with the warranty provided.
We recently had foundation repairs with multiple piers and poly-fill. Not only were they professional on-site, but one of the employees even noticed a package sitting outside starting to get rained on so they placed it in my mudroom. They kept me informed through the process and ensured I understood each repair prior to commencing.
Mario is the best guy they have. Thank you for hearing my concerns and addressing the issue. Appreciate your professionalism.
Great crew (Schylur and Marvin). Very customer focused.
KC Waterproofing and Foundation Repair did an excellent job on my sump pump installation and crack repairs. Gary and Davan were not only skilled but genuinely thoughtful throughout the process. We had a bit of miscommunication early on, and instead of brushing it off, they listened carefully, acknowledged what happened, and adjusted their plan so everything aligned with what I needed.

They brought me in at every step—showing me options for the pump location, explaining the exit pipe decisions, and making sure I felt confident about the work being done. Their friendliness and respect made a stressful home repair feel manageable.

I’m grateful for their care and would absolutely recommend them.