Concrete Sidewalks & Walkways in Chicago, IL

Sidewalk work splits into two very different jobs. Public walk in the parkway is city work: it follows municipal specification, it usually needs a permit, and the dimensions are not yours to choose. Private walkway from the drive to the front steps is yours to design.

We do both across Chicago and the suburbs, and we are clear at the estimate about which side of the property line the work falls on, because that determines the cost, the permit and sometimes who is responsible for paying.

Public sidewalk and the city specification

Public walk has set width, thickness, jointing and cross-slope requirements, and the City of Chicago has its own program and specification for it. Pour it to the wrong spec and it can be ordered out.

Trip hazards, the lifted joints that catch a toe, are the most common reason a public walk gets replaced. Tree roots cause most of them in the older neighborhoods. Sometimes a single flag gets cut out and replaced; sometimes the root has to be addressed first or the new flag lifts the same way.

Private walkways

From the drive to the front steps, from the back door to the garage, from the gangway to the yard: these are the paths that get used every day and are almost always the last thing anyone budgets for.

Private walks can take any of the finishes: broom, exposed aggregate, or stamped to match a patio or driveway. Width and shape are up to the property rather than a municipal standard.

ADA slopes and accessibility

Where a walk serves a commercial entrance or a multi-unit building, cross-slope and running slope limits apply. Exceed them and it fails inspection regardless of how good the finish looks.

We shoot grades before forming on any walk where accessibility requirements are in play rather than finding out afterward.

Why sidewalks fail in Chicago

Three causes, in order: tree roots lifting flags, base that was never compacted, and salt. The first two are structural and get fixed during replacement. The third is why new public walk should not be salted through its first winter.

Jointing matters more on a narrow walk than almost anywhere, because a walk is long and thin and it will crack on the short dimension if you let it.

How we run a sidewalks & walkways job

1. Determine public or privateWe establish where the property line is and whether the work needs a municipal permit before quoting.
2. Permit where requiredPublic way work is permitted and inspected. We handle the application.
3. Saw cut and removeExisting flags are saw cut clean at the joints and removed rather than broken ragged.
4. Address the causeRoots, failed base and drainage get dealt with, or the new walk fails the same way.
5. Form, pour, finishFormed to spec, poured, broom finished, jointed on the correct spacing.
6. Restore the parkwayGrass and parkway restored, debris hauled.

What affects the price

• Linear feet and number of flags
• Public way versus private property, and whether a permit is needed
• Tree root work and whether the tree is city-owned
• Access and how material gets to the pour
• Finish and whether it needs to match existing
• Parkway restoration

What we check before quoting

An estimate that arrives without anyone looking at the site is a guess. These are the things that move the number, and the reason we come out.

• Access. Whether a truck can back up to the work or everything moves by buggy, pump and wheelbarrow. On a Chicago city lot this can double the labor on its own.
• What is underneath. If the existing base was never compacted, it has to come out. Pouring over failed base buys a couple of seasons at most.
• Drainage. Where water goes now and where it needs to go. Downspouts, grade and yard drainage all feed into this.
• Public way. Aprons and sidewalk sections sit on city property, need a permit, and have to meet municipal specification.
• Load. What the finished work actually carries, which sets thickness and reinforcement.
• Disposal. Concrete is priced out by weight. An honest quote includes the haul and the tipping fees instead of adding them later.

Caring for new concrete

The first year decides the next twenty. Keep vehicles off new slabs for about a week and foot traffic off until the following day. Do not use de-icing salt on new concrete through its first winter, and seal it before the second. Keep downspouts discharging onto grass or a splash block rather than onto the slab, and put something underneath anything heavy that sits in one spot so it does not trap moisture there. Hairline shrinkage cracks are normal and not a defect; cracks with vertical displacement between the two sides are telling you something moved underneath, and those are worth a call.

Why concrete fails in Chicago

Chicago is one of the hardest climates in the country on concrete. The freeze-thaw cycle runs from November into March, de-icing salt goes down on every driveway and public walk, and the clay soil underneath holds water instead of draining it. Concrete that survives here is air-entrained, poured on a compacted stone base, pitched so water leaves, jointed on a proper grid, and kept away from salt through its first winter.

• Freeze-thaw scaling. Water gets into the surface, freezes, and lifts the top layer off in flakes. It comes from too much water in the mix, finishing while bleed water is still on the slab, or skipping the air entrainment Illinois exterior concrete needs.
• Road salt damage. De-icing salt accelerates surface scaling badly. New concrete should not see salt through its first winter and should be sealed before the second.
• Slabs poured on bad base. Most cracked driveways in the older neighborhoods were poured straight on disturbed clay with no compacted stone under them.
• Control joints cut late or shallow. Concrete is going to crack. Joints decide where. Cut at the wrong depth or a day late and the slab picks its own line across the middle.

Sidewalks & walkways across Chicagoland

We handle sidewalks & walkways throughout the city and the suburbs. A lot of this work happens in Evanston, Chicago and Oak Park, and we cover Naperville and Avondale regularly too. Every area we serve has its own page with the local detail.

Related work: Concrete driveways, Concrete patios and Concrete foundations. See all services or the full service area.

Sidewalks & walkways FAQ