Job 04 — Sidewalk & walkway repair
Sidewalk repair, done the right way
Section 01 — Repair vs. replace
Cracked or heaved sidewalk panels are usually a liability problem before they're a cosmetic one — a raised lip is a trip hazard, and in a lot of cities, the property owner is on the hook for it. Here's how the repair options compare.
What it costs
| Repair type | Best for | Typical cost |
|---|---|---|
| Mudjacking / slab lifting | Sunken panel, structurally sound | $300–$600 per panel |
| Panel replacement (single section) | Cracked, spalled, or badly heaved panel | $500–$900 per panel |
| Multi-panel or full-run replacement | Widespread cracking, tree-root damage | $8–$14 / sq ft |
Section 02 — What determines the fix
Reading the damage
- Sunken but intact panel: a candidate for mudjacking or polyurethane foam lifting — cheaper and faster than replacement, and it re-uses the existing concrete.
- Cracked, spalled, or crumbling panel: replacement is the honest answer. Patching a structurally failed panel just moves the trip hazard a few years down the road.
- Tree roots underneath: the root usually needs addressing (root pruning by an arborist, or a root barrier) or the new panel heaves again in a few seasons. Ask what the plan is for the root, not just the concrete.
- Multiple adjoining panels affected: often cheaper per square foot to replace a full run than to patch panel by panel — fewer mobilizations, more consistent grade and match.
Worth knowing
Many cities require a permit for sidewalk work in the public right-of-way, and some inspect the grade and joint spacing before signing off. If your sidewalk touches city property, ask your contractor whether they're pulling the permit — it's normal, and it protects you if the city ever questions the work.
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