Settled exterior slab
A driveway, walkway, patio, or pool-deck panel has dropped but may still be sound enough to keep. Start with concrete leveling, or see poly leveling for a suitable slab.
603 Basement Solutions · Concrete repair
Concrete Repair in New Hampshire, Maine & Massachusetts
A low walkway, a cracked basement floor, and a settling foundation are three different jobs. We look at what moved before recommending a fix.
Start with the problem, not the product
Concrete repair can mean leveling a settled panel, repairing damaged material, replacing a slab, or supporting the structure above it. The right choice depends on the slab’s condition, its load, the ground beneath it, and where water goes.
A single raised edge is easy to see. Its cause is harder to know from a photo. We check the surrounding panels, drainage, cracks, and whether the slab carries part of the building. If the wall, footing, or framing is moving too, this is a foundation repair question first.
The American Concrete Institute’s slabjacking guide makes an important distinction: lifting a slab changes its elevation, but does not by itself correct poor underlying soil. That is why diagnosis comes before a material recommendation.
Which concrete job is this?
Slab beyond a focused repair
Extensive breakup, loss of section, or the wrong base may call for removal and a new slab.
Moving building slab
If the floor supports part of the home or moves with walls and framing, see slab foundation repair. Surface leveling is not a structural design.
Settlement under the house
A moving footing or foundation may need an engineered support plan. Learn when push piers or helical piers enter that discussion.
Level it, repair it, or replace it?
| What the work does | When we consider it | What it does not fix |
|---|---|---|
| Level or lift a panel | Concrete is reasonably intact, but its elevation or support has changed. | It does not rebuild broken concrete or guarantee the ground will stop moving. |
| Repair a local defect | Damage is limited and sound material remains. | A patch does not stabilize a moving footing or wall. |
| Replace the slab | Condition, intended load, or base makes a focused repair a poor choice. | A new slab alone will not solve an unaddressed drainage or soil problem. |
The Federal Highway Administration distinguishes void-filling, slab lifting, partial-depth repair, and full-depth repair in pavement work. Residential concrete needs its own site assessment, but those are useful distinctions when comparing bids.
What we look at before quoting
Movement and support
Which sections changed elevation? Are cracks widening or offset? Does the concrete carry the house or only foot traffic and vehicles?
Water and access
Where does runoff go? Is water eroding support? Are there buried utilities, radiant tubing, or other conditions that affect the work?
We should be able to tell you what the proposed work will and will not solve. If an engineer’s design is needed for a structural element, we will not treat an injection or surface patch as a substitute.
Concrete repair questions
Can every sunken slab be lifted?
No. The concrete has to be in suitable condition, and the cause of movement matters. A badly broken slab or unresolved soil and drainage issue may need a different plan.
Is a basement floor the same as a driveway?
No. A floor may be part of the building assembly, with moisture-control, utilities, and structural conditions that an exterior panel does not have. See slab foundation repair for that distinction.
How much will it cost?
Size alone is not enough. Access, condition, load, base, drainage, and the repair method affect the scope. An inspection lets us price the actual job instead of inventing a one-size-fits-all number.
Let’s find out what actually moved
Show us the concrete, the nearby drainage, and anything else that changed. We will explain the repair options in plain English.
