Concrete Leveling & Mudjacking Clarksville TN – Fix Sunken Slabs
Raise and level sunken driveways, patios, sidewalks, and garage floors – fixing trip hazards and settlement for a fraction of replacement cost, across Clarksville, Sango, St. Bethlehem, Rossview, Fort Campbell and all of Montgomery County
Concrete Leveling & Mudjacking in Clarksville, TN
Concrete leveling in Clarksville, TN raises sunken, uneven slabs back to where they belong – without tearing them out. When a driveway section drops, a patio slopes toward the house, a sidewalk lifts into a trip hazard, or a garage floor settles, leveling lifts the slab by pumping material underneath to fill the void and push it back up. It costs a fraction of replacement, is usually done in a day, and you can use the surface almost immediately. Around here, the usual culprit is our soil: Middle Tennessee clay swells when wet and shrinks when dry, and that constant movement, plus washout and poor original compaction, leaves voids that slabs sink into. Elite Concrete Clarksville levels driveways, sidewalks, patios, garage floors, and pool decks across the city and county using both traditional mudjacking and polyurethane foam. If you have a sunken slab, call (931) 271-9471 for a free assessment.
This page explains what causes slabs to sink here, how leveling works, the difference between mudjacking and polyurethane foam, whether it is cheaper to raise or replace a slab, what we level, what it costs in 2026, and how long a lift lasts. Concrete leveling Clarksville TN homeowners rely on is not a patch – it is a real repair that addresses the void under the slab and restores it to grade. If part of your concrete has dropped, read on – you may not need to replace it.
Why Concrete Sinks in Clarksville
Slabs do not sink because the concrete failed – they sink because the ground under them moved or washed away, leaving a void the slab drops into. In our area a few causes dominate.
Clay soil movement
Middle Tennessee sits on clay-heavy soil that swells when it soaks up water and shrinks when it dries out. That seasonal expand-and-contract cycle lifts and drops whatever sits on top, and over years it opens voids beneath slabs that then settle unevenly. It is the number-one reason concrete goes uneven here.
Washout and drainage
Water running under a slab – from downspouts, poor grading, or plumbing leaks – washes soil out from beneath it, leaving a gap. Our heavy rains make this common, especially where drainage sends water toward the slab instead of away from it.
Poor original compaction
If the base under a slab was not compacted properly when it was poured, it keeps settling for years afterward. This is why cutting corners on base prep matters so much – and why we compact bases properly on every new pour we do.
Because the cause is under the slab, lifting the concrete is only half the job – we also fill the void so it does not just sink again. Call (931) 271-9471 and we will find out why yours dropped.
How Concrete Leveling Works
Concrete leveling – also called slab jacking or concrete lifting – raises a sunken slab by injecting material through small holes to fill the void beneath and push the slab back to level. The concept is the same whether we use mud slurry or foam; the material differs. Here is the process.
Drill small ports
We drill a series of small holes through the slab – much smaller for foam than for mudjacking. These are the injection ports, and they are patched afterward so they nearly disappear.
Inject and lift
We pump material through the ports to fill the void and raise the slab. We lift gradually and check level as we go, so the slab comes back up evenly without cracking.
Patch and use
We patch the ports and clean up. Because there is no new slab to cure, you can typically use the surface within hours – one of the biggest advantages over replacement.
The whole job is usually done in a day with minimal mess, and your slab is back in service the same day. Call (931) 271-9471 to see if yours is a candidate.
Mudjacking vs. Polyurethane Foam
The two ways to lift a slab are traditional mudjacking and polyurethane foam. Both work; they suit different jobs, and we will recommend the right one for yours. Here is an honest comparison.
Mudjacking is the proven, budget-friendly choice for many driveways and larger slabs. Polyurethane foam is lighter, uses smaller holes, cures in minutes, and resists washout, which makes it a strong choice over weaker soils and where fast return to use matters. Neither is universally "better" – it depends on your slab, soil, and budget, and we will tell you honestly which fits. Call (931) 271-9471 to talk it through.
Mudjacking
- MaterialCement/soil slurry ("mud")
- Hole sizeLarger (about 1-2 in)
- Weight addedHeavier
- Cure / use timeReady within about a day
- Best forDriveways, larger slabs, budget jobs
- CostLower up front
Polyurethane Foam
- MaterialExpanding structural foam
- Hole sizeSmall (about 5/8 in)
- Weight addedVery light
- Cure / use timeCures in minutes
- Best forSlabs over weak soil, tight/wet spots
- CostHigher up front
| Factor | Mudjacking | Polyurethane Foam |
|---|---|---|
| Material | Cement/soil slurry ("mud") | Expanding structural foam |
| Hole size | Larger (about 1-2 in) | Small (about 5/8 in) |
| Weight added | Heavier | Very light |
| Cure / use time | Ready within about a day | Cures in minutes |
| Best for | Driveways, larger slabs, budget jobs | Slabs over weak soil, tight/wet spots |
| Cost | Lower up front | Higher up front |
Is It Cheaper to Raise or Replace a Slab?
In most cases, raising a sunken slab is cheaper than replacing it – often roughly half the cost or less – and it is faster and less disruptive. But replacement is the right call in some situations, and we will tell you which applies to your slab. Here is the honest breakdown.
When raising is the better value
If the slab itself is in good shape – solid, without major structural cracks – and it has simply sunk, leveling is almost always the smart move. You keep the existing concrete, avoid demolition and disposal, pay a fraction of replacement cost, and use the surface the same day. A sound slab that dropped is the ideal leveling candidate.
When replacement makes more sense
If the slab is badly broken, crumbling, or cracked into many pieces, there is not enough sound concrete to lift as a unit, and replacement is the better investment. Severe, deep damage is beyond what lifting can fix. We will look at your slab and give you a straight answer rather than lifting concrete that should be replaced.
The rule of thumb: if the concrete is sound but sunken, raise it; if the concrete itself is destroyed, replace it. On the free assessment we tell you which, and we do not upsell a replacement you do not need. Call (931) 271-9471.
Signs You Need Concrete Leveling
How do you know a slab needs lifting rather than repair or replacement? These are the signs of a settlement problem that concrete leveling in Clarksville is built to fix.
Uneven slabs or trip hazards.
A sidewalk or driveway section sits higher or lower than the one next to it, creating a lip you can catch a toe or a mower on. This is the most common trigger for a call.
Water pooling or draining wrong.
A patio or driveway now slopes toward the house instead of away, so rain runs to your foundation. Re-leveling restores the drainage the slab was poured with.
Slabs that rock or sound hollow.
You can feel a slab move, rock, or clunk underfoot or under tires – a sign of a void beneath it that leveling fills.
Gaps at steps or foundations.
A gap has opened between a slab and the steps, porch, or foundation it used to meet, showing the slab has dropped.
Sticking doors or dipped floors.
A garage floor or interior slab has settled enough that doors bind or the floor visibly dips toward one corner.
These point to settlement, which leveling fixes by raising the slab and filling the void beneath it. If instead a slab is cracked and crumbling with no sound sections left, replacement is the honest answer, and we will say so. Call (931) 271-9471 for a straight assessment.
What We Level
If it is a sunken concrete slab, we can usually raise it. The most common leveling jobs around Clarksville:
Driveways.
Raise dropped driveway sections and aprons so they are level, drain properly, and are safe to drive and walk on.
Sidewalks & walkways.
Fix the lifted or dropped sidewalk sections that create trip hazards and liability – a common fix for homes and businesses.
Patios.
Re-level patios that have settled or now slope toward the house, so water drains away instead of pooling at the foundation.
Garage floors.
Raise settled garage floor slabs back to level so doors, storage, and vehicles sit right.
Pool decks.
Level sunken pool deck sections for safety and appearance around the water.
Commercial slabs.
Raise settled commercial walkways, warehouse floor sections, and ADA surfaces to keep properties safe and compliant.
If part of your concrete has dropped, the free assessment tells you whether leveling will fix it. Call (931) 271-9471.
Concrete Leveling Cost in Clarksville, TN
Concrete leveling costs far less than replacement – commonly around half or less – which is the main reason to choose it. The exact price depends on the size and number of slabs, how much lift is needed, and whether we use mudjacking or foam. Here is a planning guide for 2026.
| Leveling Work | What Affects Price | Notes |
|---|---|---|
| Sidewalk / small slab | Number of sections, lift height | Common trip-hazard fix |
| Driveway section | Area, lift height, method | Often a fraction of replacement |
| Patio / garage floor | Slab size, access, method | Foam or mudjacking |
| Mudjacking | Lower material cost | Budget-friendly for larger slabs |
| Polyurethane foam | Higher material cost | Light, fast, washout-resistant |
| Replacement (comparison) | Much higher | Tear-out, disposal, new pour, cure time |
Leveling is priced per job after we see the slab, since lift height and soil conditions vary. What does not vary is our approach: a firm written quote before we start, and honest advice on whether leveling or replacement is the better value. For full pricing across services, see our concrete cost hub. Call (931) 271-9471 for an exact figure.
Our Concrete Leveling Process
A good lift is controlled and even, and it addresses the void that caused the problem. Here is how we work.
1. Free on-site assessment
We inspect the slab, find why it sank, confirm the concrete is sound enough to lift, recommend mudjacking or foam, and give a written quote.
2. Drill injection ports
We drill small, strategically placed holes through the slab – tiny for foam, slightly larger for mudjacking.
3. Inject and lift gradually
We pump material to fill the void and raise the slab slowly, checking level continuously so it comes up evenly without cracking.
4. Patch and clean up
We patch the ports to blend with the surface and clean the area, leaving the slab ready to use.
5. Address drainage if needed
Because water often caused the problem, we point out drainage or grading fixes that keep the slab from sinking again.
Return-to-use time depends on the method – minutes for foam, about a day for mudjacking – and we tell you exactly with your quote. The whole process is far less disruptive than replacement: there is no demolition, no hauling away old concrete, and no new slab to cure, so most jobs are start-to-finish in a single visit.
How Long Does Concrete Leveling Last?
A properly done lift is a long-term repair, not a temporary patch – it lasts for years, and often for the life of the slab, as long as the underlying cause is addressed. The key word is "underlying cause." Here is the honest picture.
What makes a lift last
Filling the void completely and fixing what caused it – usually drainage – is what makes leveling permanent. Polyurethane foam resists washout and does not lose volume, which helps it hold. When the void is filled and water is directed away, a lifted slab stays put.
The honest caveat
If the cause is not addressed – water keeps washing out soil, or expansive clay keeps cycling – any slab can move again over time. That is why we look at drainage and grading, not just the lift. No one can promise clay soil will never move, but a proper lift plus good drainage is a durable fix, and we are upfront about that rather than overpromising.
Benefits of Leveling Over Replacement
When a slab is sound but sunken, leveling wins on almost every count. Here is what it delivers.
Big savings.
Leveling typically costs about half of replacement or less, because you keep the existing slab instead of tearing it out and pouring new.
Fast.
Most jobs are done in a day, and you can use the surface within hours – no demolition, no new slab to cure for days.
Low-mess.
Small injection ports instead of jackhammers and dumpsters means no torn-up yard, no hauling, and far less disruption.
Removes trip hazards.
Raising lifted or dropped slabs removes trip hazards on sidewalks and walkways, cutting a real safety and liability risk.
Fixes drainage.
Re-leveling a patio or driveway so it drains away from the house protects your foundation from the water a sloped slab sends toward it.
The one requirement is a sound slab. If yours qualifies, leveling is the clear value – you keep the concrete you already have, avoid the mess and expense of a tear-out, and get a level, safe surface back the same day. We will tell you honestly when it does not qualify. Call (931) 271-9471.
Why Clarksville Chooses Us for Leveling
Leveling rewards a contractor who understands local soil and gives honest advice, because the wrong call wastes your money. Here is what you get with us.
We know Clarksville soil
We work on our clay soils every day and know how they move, wash out, and settle. That tells us why your slab sank and what it will take to keep it level – not just how to lift it.
We give honest raise-vs-replace advice
If leveling will fix it, we lift it and save you money. If the slab is too far gone, we tell you replacement is the better investment instead of lifting concrete that should be replaced.
We fix the cause, not just the symptom
We fill the void and flag the drainage or grading issue behind it, so the slab stays level rather than sinking again in a year.
We answer the phone locally
Call (931) 271-9471 and you reach a local Clarksville crew, not an out-of-state call center. The person who assesses your slab is accountable for the result.
Keeping Slabs From Sinking Again
Since water and soil movement cause settlement, a few habits protect a leveled slab – and any slab – from dropping again.
Direct water away.
Extend downspouts and grade soil so rainwater runs away from slabs and the foundation, not under them. Water under concrete is the main enemy.
Fix low spots.
Watch for pooling next to driveways, patios, and walkways and fix low spots, so water does not sit and wash out the base.
Repair leaks.
Fix plumbing and irrigation leaks quickly, since a slow leak under a slab washes out soil and reopens a void.
Seal and skip salt.
Keep the slab sealed and avoid de-icing salt, so surface damage does not compound settlement problems.
Manage the water and you address the root cause of most settlement here. Call (931) 271-9471 if a slab starts to drop.
Concrete Leveling Project Gallery
4+ real photos of completed Clarksville leveling projects – before/after of raised driveways, leveled sidewalk trip-hazard fixes, and re-leveled patios. Use descriptive alt text such as "Sidewalk trip hazard raised by concrete leveling in Clarksville TN" and "Sunken driveway section lifted level in Clarksville". Do not publish stock photos as our own work.
Concrete Leveling Across Clarksville & Montgomery County
We level concrete throughout Clarksville and all of Montgomery County, TN – every ZIP code including 37040, 37042, 37043, and the 37044 Austin Peay State University area – plus Sango, St. Bethlehem, Rossview, Oak Grove, and Fort Campbell. Wherever the clay has done its work and a slab has dropped, we come out, assess it, and give you a firm quote. Call (931) 271-9471 to schedule a free on-site assessment.
Concrete Leveling in Clarksville, TN – Frequently Asked Questions
How much does concrete leveling cost in Clarksville, TN?
Concrete leveling usually costs far less than replacement – commonly around half or less. The exact price depends on the size and number of slabs, how much lift is needed, and whether we use mudjacking or polyurethane foam. We give a firm written quote after seeing the slab, and it does not change once we start.
Is it cheaper to raise or replace a concrete slab?
In most cases raising is cheaper – often about half the cost of replacement or less – and it is faster and less disruptive. If the slab is sound but sunken, leveling is the smart move. If the concrete is badly broken or crumbling, replacement is the better investment. We give you a straight answer on the free assessment.
What is the difference between mudjacking and polyurethane foam?
Mudjacking pumps a cement-and-soil slurry through larger holes to lift the slab – proven and budget-friendly for driveways and larger slabs. Polyurethane foam is a light expanding foam injected through small holes that cures in minutes and resists washout, making it ideal over weaker soils and where fast return to use matters. We recommend the right one for your job.
Why does concrete sink in Clarksville?
Mostly because of our clay soil, which swells when wet and shrinks when dry, opening voids that slabs settle into. Water washout from poor drainage or leaks and poor original base compaction are the other main causes. Since the cause is under the slab, we fill the void and address drainage so it does not just sink again.
How long does concrete leveling last?
A properly done lift lasts for years, often for the life of the slab, as long as the underlying cause – usually drainage – is addressed. Filling the void completely and directing water away is what makes it permanent. No one can promise clay soil never moves, but a proper lift plus good drainage is a durable fix.
Can you fix a sidewalk trip hazard by leveling?
Yes. Raising a lifted or dropped sidewalk section back to level is one of the most common leveling jobs, and it removes the trip hazard and the liability that comes with it – for a fraction of the cost of replacing the section, and usually done the same day.
Get Your Free Concrete Leveling Quote in Clarksville, TN
A sunken slab is not a reason to tear out concrete. If the slab is sound, leveling raises it back where it belongs for a fraction of replacement cost, in about a day, with almost no mess – and addresses the water and soil issue that caused it. That is exactly what we do.
Elite Concrete Clarksville levels driveways, sidewalks, patios, garage floors, and pool decks across Clarksville and all of Montgomery County, TN. Mudjacking and polyurethane foam. Honest raise-versus-replace advice. Written, firm quotes with no surprises.
Call (931) 271-9471 for a free concrete leveling quote – raise sunken slabs, skip the tear-out