Repairs in Anchorage mostly trace back to winter. Frost lifts slabs, deicer and meltwater flake the surface, and fill beside foundations settles. A repair only lasts if it deals with the cause, so that is where we start.
The price ranges on this page are national figures published by HomeGuide for 2026. They are not our quotes. Alaska labor and material costs, a short building season, access and the ground under your slab all move the real number. Last checked October 2026.
How much does concrete repair cost?
The national concrete repair cost is $100 to $400 for fixing driveway cracks and $600 to $3,000 for major repairs or resurfacing. Patching runs $3 to $8 per square foot. Crack repair runs $0.50 to $3 per linear foot.
| Repair | National cost |
|---|---|
| Crack repair | $0.50 to $3 per linear foot |
| Patching | $3 to $8 per sq ft |
| Resurfacing | $3 to $7 per sq ft |
| Leveling | $3 to $12 per sq ft |
| Mudjacking | $4 to $9 per sq ft |
| Foam lifting | $8 to $25 per sq ft |
Can cracked concrete be repaired or does it need to be replaced?
It can usually be repaired when both sides of the crack are at the same height and the slab does not move. Those cracks are cleaned out and sealed so water cannot get in and freeze. It should be replaced when one side has lifted or dropped, when the slab is in several pieces, or when the same crack opens wider every spring. That pattern means the ground is moving.
Why is my concrete driveway cracking?
In Anchorage the first suspect is frost. Wet silty soil under the slab freezes, swells and bends the concrete until it breaks. Other causes are joints spaced too far apart, a slab that is too thin for the vehicles on it, fill that settled beside the garage, and shaking from the 2018 earthquake. A crack that follows a straight joint is doing its job.
Why is my concrete sinking, and can it be leveled?
It is sinking because something under it gave way. Common causes here are backfill along the foundation that was never compacted, a utility trench, meltwater washing fines out from under the edge, or peat slowly compressing. A sunken slab that is still in one piece can often be leveled by pumping material beneath it. A broken one cannot.
How much does concrete leveling cost?
The national concrete leveling cost is $3 to $12 per square foot, with a typical job at $700 to $5,000 and a minimum job fee of $300 to $700. Mudjacking is $4 to $9 per square foot and foam is $8 to $25.
Mudjacking or polyurethane foam: which is better?
Neither wins every time. Mudjacking pumps a cement and soil slurry through larger holes. It is cheaper and heavy. Foam goes in through small holes, weighs very little, cures in minutes and does not soak up water, which is a real advantage in ground that freezes. On soft or wet soil the light weight of foam is the reason to choose it. For a small, dry, stable spot, mudjacking can be good value.
Is foam lifting a permanent fix or will the slab drop again?
The foam lasts. Whether the lift is a permanent fix depends on the ground. If the slab sank once because loose fill finished settling, the lift should hold. If water still runs under the slab every breakup, or the soil heaves each winter, the slab will keep moving no matter what is under it. Fix the water first.
Can concrete be resurfaced instead of replaced?
Yes, concrete can be resurfaced instead of replaced when the slab is solid, level and only the top is worn. National resurfacing cost is $3 to $7 per square foot, $6 to $20 for a decorative overlay and $1,200 to $2,900 for a two-car driveway. An overlay will not bridge a moving crack or stop a slab from heaving. In this climate it has to be a product rated for freeze and thaw, put down in warm, dry weather.
Why is my concrete spalling or flaking?
Spalling or flaking happens when water soaks into the top of the slab and freezes. Anchorage gives it many chances, since the temperature crosses freezing again and again in fall and spring. Deicer makes it worse by keeping the surface wet and adding more freeze cycles. Concrete without air entrainment, a surface finished while wet, and a slab that froze before it gained strength are the usual root causes.
Can a flaking surface be repaired without replacing the slab?
A flaking surface can often be repaired if the damage is shallow. The loose layer is ground off down to sound concrete, a bonded resurfacer goes on, and the surface is sealed. If the flaking goes deep, or the slab was never air-entrained, the new layer may come off too, and replacement is the honest answer.
Why is my driveway lifting or heaving?
A driveway that is lifting or heaving in winter has frost-prone soil and water under it. Ice forms in layers in silty ground and jacks the slab up, often by an inch or more at the garage door or along one edge. It may settle back in May, but not always in the same place. The cure is to replace that soil with clean gravel and drain the area.
Can you pour new concrete over old concrete?
It is possible, but pouring over old concrete rarely makes sense here. Every crack and every bit of frost movement in the old slab comes up through the new layer. The extra height also causes trouble at the garage door and the steps. A thin bonded overlay on a sound slab is one thing. A new slab on top of a failing one is money spent twice.
Can I patch a wide crack, or will the patch pop out?
A rigid patch in a wide crack usually pops out within a winter or two, because the crack opens and closes with temperature. A flexible sealant made for concrete joints stays in better and keeps water out. If the crack is wide because the slab has shifted, sealing only slows the damage.
How do I fix a sunken walkway that is a trip hazard? Can the raised edge be ground down?
A trip hazard can be fixed three ways. The raised edge can be ground down, which is quick and suits a lip of about an inch or less. The low panel can be lifted if it is intact. Or the panel can be replaced on a gravel base. Grinding thins the slab and does nothing about frost, so on a walk that moves every winter the lip will come back.
The only real price is one written after we have seen the site. Call (907) 331-4363 or text us a photo of the area to set up a free on-site estimate.