Guide
Concrete Repair vs Replacement
One question decides it: is the problem in the surface, or in the base under the slab?
Almost every repair-or-replace decision comes down to whether the slab is still supported. Surface problems on a stable slab are repairable and often resurfaceable. Problems caused by base failure or structural cracking come back through any repair, no matter how well it is done.
Diagnostic checklist
| What you see | Likely cause | Best action |
|---|---|---|
| Hairline cracks, no displacement | Normal shrinkage | Seal and monitor — crack repair |
| Surface flaking or pitting only | De-icers and freeze-thaw | Repair or resurface |
| One side of a crack higher | Settlement or heave | Section removal or replacement |
| Slab rocks under a vehicle | Void under the slab | Base correction and replacement |
| Water pools mid-slab | Grade or settlement problem | Replace and reset grade |
| Cracking across most of the slab | End of service life | Full replacement |
| Steps pulling away from the house | Settled backfill, no footing | Rebuild on footings |
The economics
A practical rule: when repair costs approach roughly half of replacement and the cause is base failure, replacement is the better spend, because it resets the base, drainage and slab design at once. When damage is surface-level and localized, repair is clearly better value.
Numbers behind both paths: repair cost and replacement cost. For driveways specifically, see driveway replacement.
Questions we get asked
Concrete Repair vs Replacement: common questions
How can I tell if the base under my slab has failed?
Telltale signs are sections that rock under vehicle weight, water pumping out of a crack when driven over, and settlement that returns after being patched once already.
Is patching ever a waste of money?
Yes — patching over a failed base or a moving crack buys a season or two at most. Diagnosing the cause first is what makes a repair worth doing.
Can part of a driveway be replaced instead of the whole thing?
Often yes, cutting at joint lines. The new concrete will not match the old in color, which is why some homeowners prefer replacing the full field.
Where we do this work
Crews work throughout the Reno–Sparks area. Pick your community for local notes on soils, permitting and typical projects.
Free project estimates
Talk through your concrete project with someone who pours it
Describe the area, the condition of any existing concrete and how you want to use the space. You'll get straight answers on scope, sequencing and what drives the price.
Next step
Get a site-specific estimate
Concrete pricing depends on access, subgrade, thickness, reinforcement and finish, so real numbers come from looking at the site. Send the details or call (775) 324-5551.
- Walk-through of the area and existing concrete condition
- Scope, thickness, reinforcement and finish options in writing
- Clear explanation of what would change the price
- No pressure to decide on the spot