Sidewalk Repair & Replacement in Spokane

Sidewalks are where Spokane’s two great concrete enemies meet: the freeze-thaw cycle from above and tree roots from below. In the older neighborhoods they’ve been fighting each other for a century, and the sidewalk usually loses.

Root heave — the South Hill problem

The streets of the South Hill, Browne’s Addition, and the Perry District were planted with elms and maples when they were laid out. Those trees are now enormous, and Spokane’s shallow soils over basalt force their roots to run wide and close to the surface — straight under the sidewalk. The concrete lifts, cracks, and tilts, and what was a flat walk becomes a trip hazard and a liability question.

Fixing it properly means dealing with the root, not just the slab. That’s root pruning where the tree can survive it, a root barrier to redirect future growth, and then the new pour. Expect $200–$800 per root system on top of the concrete work — and be skeptical of any bid that replaces the slab without touching what lifted it, because the new concrete will do exactly what the old concrete did.

Worth saying plainly: sometimes the honest answer involves the tree, not just the walk. A good crew tells you when the tree and the sidewalk can coexist and when they can’t.

Freeze-thaw damage

Sidewalks are thin, exposed on all sides, and get salted. That combination produces the flaking, pitted surfaces you see across the city by March. Spalled surface on a structurally sound slab can sometimes be resurfaced; slabs that have cracked through or settled need replacement.

What sidewalks cost

Concrete walkway installation runs roughly $6–$12 per square foot installed, which works out to about $25–$55 per linear foot for a standard four-foot-wide, four-inch-thick broom-finish walk. Root work adds the $200–800 per system noted above. Removal and disposal of the old walk is usually a line item worth asking about specifically.

Who’s responsible for the sidewalk out front? You are.

This surprises most Spokane homeowners, so it’s worth stating plainly: under Spokane Municipal Code 12.01.010, every owner and occupant is required to keep the adjacent sidewalk area — including corners and tree grates — in good and safe condition and repair at all times. It’s a public asset, but it’s your maintenance obligation.

Two things follow from that. First, if the city’s Director of Engineering Services determines a sidewalk isn’t being maintained, they can send written notice — and if it isn’t corrected, the city can do the repair itself and bill the owner, at the owner’s sole expense and liability. Second, a lifted or broken walk in front of your house is a liability exposure sitting on your property line.

There is a homeowner-friendly wrinkle in the current code (amended February 2026): the city is authorized to waive license, bonding, and insurance requirements for minor repairs on existing sidewalks, with the City Engineer, Development Services, and Code Enforcement publishing a rule defining what counts as “minor.” Building and construction permit and inspection requirements still apply regardless.

Practical translation: small repairs are often simpler and cheaper to handle than people assume, and larger replacements still go through permitting. Ask when you call and we’ll tell you which side of the line your job falls on.

Free written estimate: (509) 352-4494