Sidewalk Repair & Replacement
In New York City, the property owner — not the City — is responsible for repairing the sidewalk in front of their building, and failing to do so creates real liability exposure. Altius CM repairs and replaces cracked, uneven, and defective sidewalk flags for commercial, multifamily, and industrial property owners.
Why this is the owner’s responsibility, by law
Under NYC Administrative Code §19-152, property owners must install, repair, and maintain the sidewalk adjoining their property at their own expense. Under §7-210, an owner who fails to keep that sidewalk in a reasonably safe condition can be held liable for injuries caused by the defect — this liability shift, not the City, is why a sidewalk violation notice isn’t something to sit on. Owner-occupied one-, two-, and three-family homes are exempt from the §7-210 liability provision, but that exemption doesn’t apply to commercial, multifamily, or investment property. Sources: NYC DOT, Sidewalks and NYC Admin Code §7-210.
If DOT issues a violation for a defective sidewalk, the owner generally has a defined window (DOT’s published guidance cites roughly 75 days) to complete the repair before the City can perform the work itself and bill the owner. Source: NYC DOT, A Property Owner’s Guide to Address Sidewalk Defects.
What we handle
- Cracked, uneven, and heaved sidewalk flag replacement
- Sidewalk vault repair (the space beneath the sidewalk, common on older commercial buildings), which requires a separate NYC DOT vault permit
- Compliance-driven repair after a DOT violation notice
- Full block-front sidewalk reconstruction
Our guide to NYC sidewalk violations and the 75-day DOT repair clock walks through the notice, the deadline and what happens if the City does the work. Concrete at grade is also part of our garage work: at 14 53rd Street the scope included driveway entrance concrete and a partial garage ramp replacement. If a sidewalk shed is going up over the same sidewalk, see scaffolding and sheds.
Frequently Asked Questions
I got a DOT sidewalk violation. How long do I have to fix it? DOT’s own guidance points to roughly 75 days from the violation notice before the City can step in, perform the repair, and bill you for it — at a materially higher cost than hiring a contractor directly, on top of the underlying violation. Don’t let it run out the clock.
Am I liable if someone trips on the sidewalk in front of my building? Under NYC Admin Code §7-210, yes, if the property isn’t an owner-occupied one-, two-, or three-family home. That liability shift from the City to the property owner is exactly why proactive sidewalk repair matters, independent of any DOT violation.
What’s a sidewalk vault, and does it need a different permit? A vault is a below-sidewalk space, common under older commercial and mixed-use buildings in Manhattan, often used for storage or utility access. Repairing or altering a vault requires a separate NYC DOT vault permit in addition to any DOB approval — we handle both.
Can sidewalk repair happen without closing the whole sidewalk? Usually the work is phased in sections with pedestrian protection so a path stays open, though full-width replacement of a badly failed flag may require a brief full closure of that section.