St. Louis County

Mudjacking & Concrete Leveling in Frontenac, MO

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

Frontenac started as Frontenac Estates, a layout of 26 two-acre estates, and it is still mostly homes on one-acre lots. Big lots mean long driveways, wide patios and walks that run a good way from the street to the door. When the ground under that concrete gives way, we lift it back toward level 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 Frontenac

Frontenac's population peaked at 3,920 in 1970, so much of the concrete here has been in place for decades. These are the jobs we see most.

Concrete driveway slab sunken below the edge of a garage door

Long driveways that dip in the middle

On a big lot, a driveway can run many panels deep. One panel that loses support drops below its neighbors, and you feel the bump every trip in and out.

Patio slab settled away from a brick wall

Back patios that tip toward the house

Large rear patios often span ground that was graded when the house was built. As the soil settles, one edge sinks and rain starts running toward the foundation.

Front entry steps and stoop pulling away from a brick home

Entry steps that pull away

Front steps are usually poured separately from the foundation. When they settle, a gap opens against the house and the top step no longer lines up with the door.

Sunken concrete walk at a storefront door

Commercial walks at shops and restaurants

The city describes itself as a place for gracious living, shopping and dining. Sunken walks at those businesses make an uneven edge right where customers are looking up at the door, not down at their feet.

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 Frontenac Property Owners Call Us

Our team is part of Nick Gress Foundations and works throughout St. Louis and St. Charles counties. Some slabs can be lifted and some can't, and we'll tell you which one you have.

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 Frontenac

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 Frontenac

Frontenac appears on the Missouri Geological Survey's map of the Creve Coeur quadrangle. The map shows the uplands here covered by two layers of wind-blown silt (loess) that can reach 100 feet together. It warns that where those layers meet, on ground with a lot of relief, the contact can become a slide plane, and that water perches where the silt rests on shale.

The map notes that where the silt cover is thin, the limestone below may be karstic. It marks areas with high concentrations of sinkholes and caves, formed as the Mississippian-age limestone under this area slowly dissolves.

Dry, packed silt carries a slab well. Wet silt washes out and settles, and that's when concrete starts to drop. Mudjacking fills the hollow with grout and lifts the slab, and keeping gutters and downspouts draining away from the edges helps it stay put.

Sources: Missouri Geological Survey, Surficial Material Geologic Map of the Creve Coeur 7.5' Quadrangle; City of Frontenac staff directory; Frontenac, Missouri (Wikipedia)

Tape measure showing a washed-out void under a concrete slab — A washed-out void under a slab. This is the space mudjacking fills.

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

Mudjacking Services for Frontenac 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!!!!

Frontenac Mudjacking FAQ

Who fixes the sidewalk in front of my Frontenac home?

For a public sidewalk, check with Frontenac Public Works at 314-373-6550. Your driveway, walks, steps and patio are yours, and that's where we can help.

Can you lift a long driveway without tearing it out?

Yes, in most cases. We lift only the panels that dropped and bring them back in line with the rest. If a panel is shattered, we'll point that out so you can replace just that piece.

Will mudjacking tear up my yard or landscaping?

No. We drill small holes in the slab, pump grout through them to fill the space underneath, and patch the holes when the slab is back in place. There's no digging out of the concrete.

Why does concrete settle on Frontenac's ground?

Most of Frontenac sits on deep wind-blown silt over limestone. Silt holds up when it's dry, but water from roofs and slopes softens it and carries it away, and the slab settles into the space.

Do you serve the areas around Frontenac?

Yes. We work in Ladue, Creve Coeur, Des Peres, Kirkwood and across St. Louis and St. Charles counties.

How do I get an estimate in Frontenac?

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 Frontenac:

See every area we serve

Ready to Fix Sunken Concrete in Frontenac?

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