Central St. Louis County

Mudjacking & Concrete Leveling in University City, MO

Name: St. Louis Mudjacking
Address: St. Louis, MO, 63101, US
Telephone: (636) 220-5199
Price range: $$

University City was incorporated in 1906 as E.G. Lewis's planned model city, and it grew faster than any other Missouri city between 1910 and 1920. Its south end is full of streetcar-era homes, and its north end filled in after World War II. Concrete from both eras is settling, and we lift it back with mudjacking.

Call (636) 220-5199 Get a Free Estimate

Free, no-pressure estimates
A Nick Gress Foundations company
Open 7 days, 7am to 9pm

Reviewed by the St. Louis Mudjacking team · Updated October 29, 2026

How mudjacking lifts a sunken driveway, start to finish.

Concrete Problems We Fix Around University City

Between century-old houses, post-war neighborhoods, the River des Peres and two busy commercial strips, U City gives us a wide mix of work.

Front entry steps and stoop pulling away from a brick home

Porches and steps on streetcar-era homes

Homes near Delmar Boulevard date to the early 1900s. Their concrete steps and porch slabs have had a long time to settle, and many now tilt away from the house.

Concrete driveway slab sunken below the edge of a garage door

Driveways on post-war homes in the north end

The city's biggest building boom came after World War II. Many driveways from that period are well over 60 years old, and sunken panels at the joints are common.

Tape measure showing a washed-out void under a concrete slab

Slabs near the River des Peres

The river flooded homes here in July 2022. When water gets under a patio or walk, it can carry soil out and leave a hollow, and the slab drops into it.

Sunken concrete walk at a storefront door

Storefront walks on Delmar and Olive

The Delmar Loop and the Olive Boulevard business strip see heavy foot traffic. A sunken walk at a shop door is a trip risk you can fix without closing for days.

Before & After: What Mudjacking Fixes

These are the kinds of slabs we lift every week across St. Louis and St. Charles counties. The slab stays in place; we raise it and fill the empty space underneath.

Before and after mudjacking a sunken driveway slab that had dropped below the garage apron

Before and after leveling a sidewalk panel with a raised edge that was a trip hazard

Before and after lifting a sunken concrete walk at a storefront entrance

Empty void under a concrete slab before and after it was filled with mudjacking grout

Before and after leveling a settled joint in a commercial concrete walkway

See more project photos

Watch Mudjacking in Action

A quick look at how lifting works on real slabs. The grout goes in through small holes, fills the empty space underneath, and raises the concrete back toward level.

Leveling a sunken garage floor.

Leveling a settled walkway.

Why University City Property Owners Call Us

We're part of Nick Gress Foundations and lift concrete for homes and businesses across St. Louis and St. Charles counties. We'll look at your slab and tell you honestly whether lifting makes sense.

St. Louis Mudjacking technician pumping grout under a sunken driveway

Free, no-pressure estimates with a straight answer on whether lifting will work
Proven grout-based mudjacking that fills voids and lifts the slab you already have
Usually done in a few hours, without tearing out concrete
Small, patched holes and a cleaned-up work area when we leave
Residential and commercial work, from front steps to parking lots
Part of Nick Gress Foundations, a St. Charles-based family company

How Mudjacking Works

Small drilled holes in a settled concrete walkway before mudjacking

1. Drill small holes

We drill a few small holes through the settled slab to reach the empty or soft spots underneath.

Mudjacking nozzle pumping grout through a hole to lift a sunken concrete slab

2. Pump and lift

A cement-based grout is pumped under the slab. It fills the voids first, then slowly raises the concrete back toward level.

Patched mudjacking hole on a stamped concrete patio, shown next to a quarter for size

3. Patch and clean up

Once the slab is where it should be, we patch the holes and clean up. Most jobs are finished the same day.

Get a Free Mudjacking Estimate in University City

Tell us what is sinking and where. We will follow up to set up a free estimate. Prefer to talk? Call (636) 220-5199.

Why Concrete Sinks in University City

University City sits on the Clayton quadrangle mapped by the Missouri Geological Survey. The map shows two layers of wind-blown silt (loess) up to about 80 feet thick, with the lower Roxana layer holding more clay than the Peoria layer above it. Where the loess is thin over limestone, the rock can be karstic, and where it sits on shale, water can perch and weaken the soil above.

A University City Storm Water Commission report found that most of the damage from the July 26, 2022 flood came from the River des Peres, and called it the most flood-prone stream in Missouri. The report put the damage at about $30 million.

Soil that has been soaked, whether by a flood or by years of downspout water, loses strength and settles. Mudjacking fills the space left under the slab and raises it, and keeping water moving away from the slab helps it stay up.

Sources: Missouri Geological Survey, Surficial Material Geologic Map of the Clayton 7.5' Quadrangle; First Alert 4, University City issues report on July 2022 flood; City of University City Public Works; City of University City, Right of Way Permit Program

Mudjacking crew mixing grout in the pump hopper beside a garage — Mixing the grout that goes under the slab.

Mudjacking Services for University City Homes and Businesses

Every service uses the same lifting process, sized to the slab. Not sure which one you need? Describe the problem on the estimate form and we will help you sort it out.

Driveway leveling for sunken slabs and lips at the garage
Sidewalk and walkway lifting to remove trip hazards
Steps and entry lifting for leaning or separated front steps
Porch lifting for settled concrete porches
Patio lifting for slabs that hold water or tilt toward the house
Garage floor lifting for low or cracked sections
Pool deck lifting for uneven decks around pools
Concrete slab lifting for AC pads, shed slabs and more
Void filling to restore support under concrete
Commercial concrete lifting for walks, entries, lots and warehouse floors

What St. Louis-Area Customers Say

Google reviews from customers across the St. Louis metro.

    
 
 
       Posted on Google  
   
   Jack Naudi 
 
 
 
 Trustindex verifies that the original source of the review is Google. Nick and his family turned my highly uneven, and very large, concrete driveway and pad into an almost perfectly level sheet. It was amazing to see. Nick and his family were awesome to work with, the price was fair, and the results were amazing. I highly recommend them.
  
 
      Posted on Google  
   
   Meddie Garreau 
 
 
 
 Trustindex verifies that the original source of the review is Google. Nick and his team were extremely punctual, hard working and completed the task on time. We had almost fifty feet of foundation cracks repaired as well as the driveway mudjacked. Would highly recommend for future work.
  
 
      Posted on Google  
   
   Steve Plant 
 
 
 
 Trustindex verifies that the original source of the review is Google. I wrote a bad review earlier about bad communication. His family was very ill that is why he was slow to get back to me. I ended up hiring them for a large driveway leveling job and it turned out great. Great quality and great pricing. I have referred St. Louis Mud Jacking multiple times since my project and I will continue to use them on my properties. I wish there was a way to remove my old review but I wasn't able to. Great company!!!!

University City Mudjacking FAQ

Who fixes the sidewalk in front of my University City home?

University City's Public Works department looks after about 110 miles of sidewalk and takes reports on right-of-way problems with streets, sidewalks, curbs and tree lawns. For a public sidewalk, call Public Works at (314) 505-8548. The city also requires a Public Works permit before any construction in the right-of-way. Your driveway, walks, steps and patio are yours, and that's where we come in.

Can you lift a patio or walk after flood damage?

If the slab is still in one piece, often yes. Floodwater can wash soil out from under concrete, and we fill that void as we lift. If the slab broke apart, we'll tell you replacement is the better choice.

Can you level steps on an early 1900s house?

Usually, if they're solid concrete. We raise them back against the house so the gap at the top closes. Brick or crumbling steps need a different repair, and we'll say so.

Do you work on Loop and Olive Boulevard businesses?

Yes. We lift walks, entries and parking slabs for shops and restaurants, and we try to schedule around your open hours.

Do you serve the areas around University City?

Yes. We work in Clayton, Ladue, Creve Coeur, Brentwood, Ferguson and across St. Louis and St. Charles counties.

How do I get an estimate in University City?

Fill out the estimate form on this page or call (636) 220-5199. Estimates are free and there's no pressure.

Nearby Service Areas

We also lift and level concrete in these communities near University City:

See every area we serve

Ready to Fix Sunken Concrete in University City?

Uneven concrete does not fix itself. Call or send the form, and we will tell you plainly whether lifting is the right fix.

Call (636) 220-5199 Request an Estimate