Concrete Repair & Replacement in Dubuque, IA

Concrete Repair & Replacement begins with one question: can this slab be saved? In Dubuque, where much of the concrete around older homes has been through decades of freeze-thaw, sometimes it cannot. Other times a slab that looks terrible has only settled, and lifting it or sealing its cracks costs a fraction of tearing it out. We look at the concrete, figure out why it failed, and price both paths when both are reasonable.

What we usually find

• Settled panels. Walks, patios and driveway sections that dropped because soil underneath washed out or compacted.
• Cracks. Anything from hairline shrinkage lines to wide breaks with one side higher.
• Scaling and spalling. Flaking from freeze-thaw and salt, worst on drives, steps and walks near the street.
• Heaved sections. Pushed up by frost or roots, leaving trip edges.
• Slabs tilted at the house. Patios and walks now draining toward the foundation.

Ways to repair

Sealing cracks. Narrow cracks in a stable slab are cleaned out and filled with a flexible sealant to keep water out. HomeGuide prices crack filling at $0.50 to $3 per linear foot. It is maintenance, not a structural fix.

Lifting. A settled but intact slab can be raised by injecting material underneath. Mudjacking pumps a cement slurry, at $4 to $9 per square foot in HomeGuide's guide; polyjacking uses expanding foam, at $8 to $25, and often lasts the longest. HomeGuide expects leveled concrete to last 5 to 10 years or more.

Resurfacing. A thin cement-based layer over a sound but worn surface, about $3 to $7 per square foot. It improves the look, not the strength, and it will not hold on a slab that is cracking through.

When new concrete is the better buy

HomeGuide's leveling guide points to replacement when cracks are wider than 1/4 inch, when spalling or surface damage is significant, or when the slab is badly deteriorated. That matches what we see. Often only some panels need to go: we saw at a joint, remove the bad sections, fix the base and pour new panels to the grade of the old ones. When most of the slab is gone, one full replacement costs less over the years than patching every spring.

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Stopping it from happening again

Repairs fail when the cause stays. A downspout emptying beside a slab, a yard that drains onto a walk, roots under a sidewalk, salt on a young slab: all can be fixed. We look for the water source before quoting any repair. Extending a downspout or regrading next to a slab can matter as much as the concrete work itself.

Public sidewalks

If the City of Dubuque has painted your sidewalk, its rules define the fix. Since a 1996 council decision, defective sections are reconstructed or replaced rather than patched, to city specifications, under a permit, within the notice deadline. Our sidewalks and steps page walks through that process.