St. Charles County

Mudjacking & Concrete Leveling in St. Charles, MO

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

From the brick streets of Frenchtown to the newer subdivisions off Route 94, St. Charles has concrete that's been settling for decades. We lift sunken driveways, walks, steps and patios with mudjacking, and we're based right here in St. Charles County.

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 St. Charles

St. Charles has some of the oldest neighborhoods in the region and plenty of newer ones too. The problems look different in each.

Front entry steps and stoop pulling away from a brick home

Front steps and walks in the historic districts

Homes in Frenchtown, Midtown and the Lindenwood neighborhood date from the 1830s through the 1950s. Concrete stoops and walks added over the years settle away from the house and leave gaps that let water in.

Raised sidewalk edge creating a trip hazard

Sidewalk sections at the driveway

Under the city code, the sidewalk section that crosses your driveway is the owner's to maintain. A sunken or tipped panel there is a trip hazard and a common reason people call us.

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

Driveways that slope toward the river bottoms

Near the Missouri River, slabs sit on deep river deposits where the water table can be only 5 to 15 feet down. Wet seasons soften the soil and driveways settle and crack at the joints.

Patio slab settled away from a brick wall

Patios and AC pads on newer lots

In subdivisions in the Golden Triangle and New Town, backyard slabs often sit on graded fill. As it compacts, patios tilt toward the house and AC pads lean.

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 St. Charles Property Owners Call Us

St. Louis Mudjacking is part of Nick Gress Foundations, a St. Charles-based family company. We'll look at your slab and tell you plainly whether lifting is the right fix.

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 St. Charles

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 St. Charles

The Missouri Geological Survey's map of the St. Charles area shows wind-blown silt (loess) on the uplands that can reach 140 feet thick, and Missouri River deposits 80 to 100 feet thick in the bottoms, where the water table sits 5 to 15 feet below the surface. The survey also notes organic clays about 20 feet down under the low river terraces, and a shale-rich bedrock layer that becomes unstable during heavy rain.

Loess is strong when it's dry and compacted, but it washes out easily when water runs along a slab edge, and it settles when it gets wet. Spring is the wettest time of year in St. Charles, which is when many of our customers first notice a step or panel has dropped.

Mudjacking fills the empty space under the slab and lifts it back toward level. Keeping downspouts and runoff away from slab edges helps the repair last.

Sources: Missouri Geological Survey, Surficial Material Geologic Map of the St. Charles 7.5' Quadrangle; St. Charles City Code, Chapter 505 (sidewalks)

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

Mudjacking Services for St. Charles 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!!!!

St. Charles Mudjacking FAQ

Who pays to fix the sidewalk in front of my St. Charles home?

Under the St. Charles city code (Section 505.270), the sidewalk section through your driveway is maintained at the owner's cost. Section 505.320 sets up a cost-sharing program where the city may pay 50% of an approved sidewalk repair and the owner pays the other 50%, using the lowest of at least three bids. Check with the city before you start. If a panel is intact and just sunken, ask us whether lifting is an option before replacing it.

Can you lift steps on an older home in Frenchtown or Midtown?

Often, yes. If the stoop is solid concrete and still in one piece, we can usually raise it back toward the house and close the gap. Brick or badly cracked steps may need a different fix, and we'll tell you up front.

Why does concrete settle near the Missouri River?

In the river bottoms, slabs sit on deep, soft river deposits with a high water table. Wet seasons soften the soil and it compresses under weight, so driveways and walks settle and separate at the joints.

Is mudjacking cheaper than replacing concrete?

In most cases lifting costs less than tearing out and pouring new concrete, because the slab you have stays in place. We'll give you a free estimate so you can compare.

Do you serve the areas around St. Charles?

Yes. We work throughout St. Charles County, including St. Peters, O'Fallon and Cottleville, and across the river in Maryland Heights, Bridgeton and the rest of St. Louis County.

How do I get an estimate in St. Charles?

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 St. Charles:

See every area we serve

Ready to Fix Sunken Concrete in St. Charles?

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