Tree Roots Lifting Your Driveway in Vaughan

You notice it first under your feet: a hump in the asphalt, or interlock pavers that rock when you step on them. In most of Vaughan, that hump points straight at the nearest big tree.

Why Roots End Up Under Your Driveway

Three things push roots under a driveway on a Vaughan lot.

Clay Soil Keeps Roots Shallow

Most of Vaughan sits on heavy clay. Clay holds water and packs tight, so it has little air deep down. Tree roots need air as much as water, so they spread out in the top 30 to 60 cm of soil. A driveway sits right in that layer.

The Slab Collects Water

Water runs off asphalt and pools along the edges, and condensation collects under the slab. A root that finds that damp strip keeps growing along it. Each year the root thickens, and the thickening is what lifts the slab.

Fast, Big Trees on Small Lots

Silver maples, Norway maples and willows are the usual culprits. You see big silver maples on older Woodbridge and Thornhill streets, planted when the lots went in. Newer Maple and Vellore Village lots often have a tree squeezed into a narrow strip between two driveways, with nowhere for the roots to go but sideways.

How to Tell How Serious It Is

Walk around the tree and look at three things:

• Root size. Dig gently at the edge of the slab. A root the size of a broom handle is a different problem from one as thick as your leg.
• Distance from the trunk. The closer a thick root runs to the trunk, the more of the tree’s weight it carries.
• The far side of the tree. Cracked soil, a raised mound or roots pulling up through the lawn on the side opposite the driveway means the root plate is moving. That tree is a removal job, and it moves up the list.

Check the foundation too. If the same tree sits within a few metres of the house, look for cracks in the basement wall or a door that has started to stick. Our guide to a tree close to your house covers what to check.

What You Can Do Now

• Mark the lifted edge with paint or tape so nobody trips, especially in winter when snow hides it.
• Take photos of the ridge and the root from a few angles. They help with a quote and with any insurance or neighbour talk later.
• Find out whose tree it is. A tree on the City boulevard between the sidewalk and the road belongs to the City of Vaughan.

What not to do: don’t hack at a thick root with an axe or a saw to get the driveway flat. A big root cut close to the trunk can leave the tree standing on half its anchor. That is how a tree ends up across the house in the next windstorm.

Your Options

You have three ways to deal with a lifted driveway, from smallest to biggest.

Cut a Small Root and Relay the Section

If the root is small and far from the trunk, your paving contractor can lift the section, the root comes out, and the slab goes back down. Adding a root barrier along the edge slows the next one.

Bridge Over It

Some homeowners rebuild the section with a thicker base and leave the root alone. It buys years, not forever.

Take the Tree and Roots Out

When the root is the tree’s main anchor, or the tree is also crowding the house, removal is the honest answer. We take the tree down in sections, then dig out the stump and the main roots so the driveway can be rebuilt on solid ground. Grinding alone leaves the big lateral roots in place, so for a driveway job we usually pull them. That is what our stump and root removal covers: stump out, main roots out, hole backfilled.

Before any digging, we have the underground lines located through Ontario One Call. That matters here: gas and cable lines often run right beside driveways.

Vaughan Rules That Apply

Under the City’s Tree Protection By-law 177-2025, a private tree with a trunk 20 cm or wider at 1.37 m above the ground needs a permit to take down, and cutting major roots can count as injuring it. If the tree is healthy, the permit needs an arborist report and a fee set by the City. Boulevard trees are the City’s: call Vaughan Public Works at 905-832-8585 and let them deal with their own roots.

If the tree is on a neighbour’s lot and the roots cross under your driveway, talk to them first. Cutting roots that kill or seriously harm their tree can land you in a dispute, and a boundary tree belongs to both owners.

When to Call Us

Call or text (289) 444-0864 with a photo of the driveway and the tree. We come out the same day, look at the root and the trunk, and tell you whether the root can go or the tree has to. You get a firm quote on the spot, and most jobs finish in one visit, with the roots out and the yard cleaned up before we leave.