Defect Code 7
Tree Root Damage / Heaved Flag
Street tree roots heave and crack sidewalks. NYC DOT cites the property owner, but Parks owns the tree. We coordinate Parks-approved root pruning, replace the heaved flags, and install root barriers to protect the new pour.
Signs You Have This Violation
- Visible roots growing under or through the flag
- Flag tipped up at the tree-pit side
- Cracks radiating from a tree pit
- Heaving worse year over year
Repair Steps
- 1Parks coordinationWe work with NYC Parks on root pruning approvals when required.
- 2Prune roots safelyRoots cut at the right distance to protect the tree.
- 3Install root barrierVertical HDPE barrier prevents re-heaving.
- 4Pour new flag4" 4,000 psi concrete to NYC spec.
Typical Price Range
Range
700 – 1,800 per flag
Final price depends on access, number of flags, and whether a DOT permit is already on file. Every job includes a free written estimate.
Frequently Asked Questions
Can I cut the roots myself?+
No — roots over 2" require NYC Parks approval. We handle that paperwork.
Will the tree die?+
Pruned correctly, no. We follow Parks guidelines for distance and root size.
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