How much does one sidewalk flag cost to replace in NYC?

A standard 5x5 residential sidewalk flag runs $400–$900 installed in NYC, including demo, haul-away, 4-inch concrete pour, and finishing. Driveway aprons (6-inch) run $700–$1,400 per flag.

Does the calculator include the DOT permit fee?

Yes — the NYC DOT sidewalk permit (~$135 for the first 100 linear feet) is added automatically for any job with 1 or more flags.

Is this a binding quote?

No — this is a 2026 market range based on typical NYC pricing. For a binding written estimate, call (516) 348-5145 or request a site visit.

NYC Sidewalk Repair Cost Calculator (2026)

Real per-flag pricing. Includes DOT permit. No email required.

Your job

Number of flags to replace

One flag = one 5x5 concrete section. Most single-family homes have 4–8 flags on the sidewalk.

Flag thickness

Borough

Tree root damage (adds root cutting + barrier per flag)Clearing an active DOT sidewalk violation

Estimated 2026 price

$1,335 – $2,835

Fully installed, includes demo, haul-away, 3,000 PSI mix, finishing, and NYC DOT permit ($135).

Licensed & insured NYC sidewalk contractor
We pull the DOT permit for you
DOT re-inspection & dismissal included
Written line-item estimate — no lump sum

Call (516) 348-5145 Get a written quote

Range is a 2026 NYC market estimate, not a binding quote. Site visit gives you the exact number.

Guide

How much does sidewalk repair cost in NYC?

DOT

The 75-day sidewalk violation deadline

DOT

Look up a sidewalk violation by address

Get a Free Estimate

Tell us what needs attention and where the property is located. We will review your request and follow up about the next available visit.

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