Decision support
Concrete Leveling vs Replacement
Lifting a slab and replacing it solve different problems. Lifting corrects position; replacement gives you new concrete. If the slab itself is failing, no amount of lifting fixes that — and if the slab is sound, replacement is usually the more expensive way to reach the same result.
Start with the slab, not the price
The first question is not which option costs less. It is whether the concrete is worth keeping. A slab that has dropped as a unit and is otherwise sound is a lifting candidate. A slab that has broken into pieces, spalled widely or lost its surface is a replacement candidate regardless of what lifting would cost.
The second question is what caused the movement. If water is still carrying material away beneath the slab, both options are exposed to the same risk — new concrete over the same unaddressed condition can settle too.
Comparing the two paths
| Leveling / lifting | Replacement | |
|---|---|---|
| What it addresses | Position and support of existing concrete | The concrete itself, plus layout and slope |
| Requires | Slab in generally sound condition | Nothing — the old slab is removed |
| Relative cost | Typically a fraction of replacement for comparable area | Higher: demolition, disposal, forms, materials, finishing |
| Disruption | Usually hours; small patched holes | Days, including cure time before use |
| Return to use | Often same day, especially with polyurethane | After the new concrete has cured sufficiently |
| Appearance | Existing concrete, including its existing wear and cracks | New, uniform surface |
| Changes slope or layout | No — restores prior elevation where settlement caused the loss | Yes — a new design is possible |
| Risk if cause is unaddressed | Can settle again | Can settle again |
Lifting is usually the better spend when
- The concrete is intact and in decent condition for its age.
- The problem is elevation, a trip offset, or drainage that reversed.
- You are satisfied with the slab's size, shape and finish.
- Downtime matters — a shared walkway, a working driveway, a business entrance.
- Budget is a real constraint and the slab is serviceable.
Replacement deserves serious consideration when
- The slab is fragmented, crumbling, or the surface has widely deteriorated.
- You want a different layout, width, slope, or a drain that does not exist.
- The slab has already been lifted and has moved substantially again.
- Reinforcement or thickness appears inadequate for the loads it carries.
- The work is part of a larger project that involves removing the slab anyway.
Work through your own situation
Is this slab worth lifting?
Eight questions. The output is a direction to take, never a verdict on your concrete.
1. Is the slab mostly intact, without large broken sections?
2. Is the damage mainly a vertical drop rather than fragmentation?
3. Is the problem localized to one area or a few slabs?
4. Are there multiple large broken or crumbling sections?
5. Is water pooling or draining toward the house involved?
6. Do you suspect a void beneath the slab?
7. Is the slab simply sitting lower than the concrete next to it?
8. Are you already considering full replacement?
Questions worth asking any provider
- What condition is this slab actually in, and does it support lifting?
- What do you believe caused the settlement here?
- Will the void be filled, and is that included in the price?
- What happens to the drainage after the lift?
- What exactly is covered if the slab moves again, and for how long?
- Would you replace this slab if it were yours, and why?
For price context, see concrete leveling cost.
Homeowner questions
Is leveling always cheaper than replacement?
For comparable area it is generally a fraction of replacement cost, but it is only the better value when the slab is worth keeping. Lifting concrete that needs replacing is money spent twice.
Does lifting a slab weaken it?
The objective is to restore support beneath the slab. Small injection holes are patched. Whether a specific slab is a suitable candidate is an onsite judgement.
Can part of a driveway be replaced and the rest lifted?
Mixed scopes are common — replacing failed sections while lifting sound ones. Ask providers to price it that way if it fits your situation.
Keep going
Get both options on the table
Ask providers to address lifting and replacement for your slab. Describing the condition and sending photos makes that comparison possible.