Tree Roots Under Your Driveway or Sidewalk: What Florida Homeowners Can Do

How Do I Stop Tree Roots From Damaging My Driveway?

The reliable fix is a physical barrier that redirects new root growth down and away from the slab, combined with repairing the section that's already lifted rather than just grinding the bump down and hoping the root stops growing. Cutting the offending root outright is the option homeowners reach for first and the one most likely to cause a problem of its own, since a large root close to the trunk is often doing real structural work for the tree. Our concrete repair service handles the slab side of this; a certified arborist should weigh in before any root gets cut near the trunk.

Why Do Florida Tree Roots Grow Toward the Driveway in the First Place?

A tree's root system spreads wide and shallow by nature, closer in shape to a flat saucer than to a mirror image of the branches overhead, and that shape is exactly why roots so often end up under a driveway instead of staying confined to a planting bed (UF/IFAS Gardening Solutions). Most of a tree's roots stay within the top couple of feet of soil, spreading out over an area several times wider than the canopy above, since that's where the oxygen a root needs to function actually is (Colorado State University Extension). On Florida's flatwoods soils, where a seasonal water table can sit within about 18 inches of the surface for part of most years, that shallow habit gets reinforced further: a root has even less reason to grow deep when the ground a foot or two down holds more water and less air for part of the year (NRCS, Myakka series). A compacted, well-watered base under a driveway, cooler and often moister than the bare ground beside it, turns out to be an inviting place for a shallow root to keep spreading once it reaches the edge of the slab.

Which Florida Trees Cause the Most Driveway Damage?

Live oaks are the repeat offender across both service areas, prized for shade and canopy but known for roots that lift a slab edge well before the tree itself shows any sign of stress. It's common enough, and the trees common enough as street and yard trees, that several cities in Greater Orlando specifically protect larger live oaks by ordinance, which matters for anyone considering root pruning or removal near one. Other broad, fast-spreading species, including sweetgum and some pines, cause similar lifting on a smaller scale. A young tree planted close to an existing driveway is worth watching for years before it becomes a problem; a mature specimen already shading the slab is the case that usually prompts the call.

Do I Need a Permit to Remove or Prune a Tree That's Damaging My Driveway?

Often, yes, and the trigger size is smaller than most homeowners expect. The City of Orlando treats any tree 6 inches in diameter at breast height or larger as protected, requiring a removal permit, and separately bars encroaching into a tree's minimum undisturbed area without an encroachment permit (City of Orlando Ordinance 2020-13). Winter Park sets the same 6-inch threshold and specifically calls out live oaks and bald cypress 30 inches or larger as landmark trees with added protection, and a site plan tied to a driveway or paver permit there has to show where protected trees sit (City of Winter Park Ordinance 3320-24). The City of Sarasota requires a permit to remove or relocate any tree over 4.5 inches in diameter, with a higher bar for a "Grand Tree," a live oak or sand live oak 24 inches or larger (City of Sarasota, Tree Protection). Unincorporated Orange County sets its regulated-tree threshold at 8 inches, though it grants a built-in exception: a lot with an approved building permit can remove trees within 15 feet of the building pad, the driveway and the septic system as part of that same permit, without a separate tree removal application (Orange County, Tree Removal Permit).

Check with the local building or urban forestry department before cutting or removing a tree, since thresholds and exceptions vary by address.

What Actually Fixes a Driveway Section a Root Has Lifted?

The slab work and the tree work are two separate problems that happen to share one cause. On the slab side, a lifted section usually gets cut out and replaced rather than ground flush, since grinding only buys time if the root keeps growing and pushing from underneath; cut-out-and-replace work is covered on our repair page in more depth than fits here. On the tree side, a root barrier set into the ground along the slab's edge is the standard way to redirect new growth downward and away from the repaired section instead of straight back into it, without cutting a structural root near the trunk. Removing the tree outright solves the root problem permanently but isn't always the right trade-off against the shade and value a mature tree adds to a property, which is a call worth making with an arborist rather than a concrete crew.

Say a Live Oak Planted Close to the Garage Has Lifted One Driveway Panel

A fairly typical case in an older Winter Garden or Sarasota neighborhood looks like this: the tree went in decades before the current driveway, the canopy has since spread well past the garage, and one panel near the tree now sits noticeably higher than its neighbors. The slab fix is a cut-out-and-replace of that one panel rather than the whole driveway, tied into the adjoining sections so the new piece moves with the rest instead of settling or lifting on its own. The root fix, a barrier installed along the repaired edge, happens at the same time so the new panel doesn't end up right back where the old one started within a few growing seasons.

Roots Under a Sidewalk or Paver Surface Behave a Little Differently

A root under a narrow concrete walkway tends to show up faster than under a wide driveway, since a sidewalk has less slab mass to resist the lift; our sidewalk and walkway page covers that scope specifically. Under a paver surface, the same root doesn't crack a single rigid panel the way it would in poured concrete; instead it pushes individual units up out of level one at a time, which often reads as a low or uneven patch rather than a crack. That's a releveling job over the affected pavers once the root issue is addressed, not a patch-and-fill repair; our paver sealing and restoration service covers how a sunken or lifted section gets pulled, reset and brought back level with its neighbors.