Tree Roots Are Lifting My Driveway or Path — What Can I Do?

June 23, 2026

In the older residential streets of Grange-over-Sands, Kendal, Ulverston and the villages of the Cartmel Peninsula, this is a situation we come across regularly. A tree, often one that has been in the garden or the pavement for many decades, has developed surface roots that are lifting block paving, cracking a concrete path, or disrupting a tarmac driveway. The trip hazard and the visual disruption are both real concerns, particularly for older homeowners for whom a lifted paving slab or uneven path surface is a genuine safety issue.

Here is an honest assessment of the options.

Why Tree Roots Come to the Surface

Roots grow toward the conditions they need: water, oxygen and nutrients. In many gardens and street environments in Cumbria, the compacted or paved surface soil layer is poor in oxygen and water movement, and the roots of established trees migrate toward the surface where conditions are better. The roots most likely to cause pavement lifting are typically large lateral roots of relatively shallow-rooted species, which in our area most commonly means lime, sycamore, ash, horse chestnut and poplar in street and pavement settings.

Root lifting of residential driveways and paths in garden settings most commonly involves sycamore, ash and older ornamental trees whose root systems have extended beyond the original planting position as the tree has grown.

Option One: Root Pruning

Root pruning, cutting the offending root at a sufficient distance from the tree to prevent immediate regrowth toward the structure, is the most commonly requested solution. It can work, and in some situations it is the right answer. However, it needs to be approached carefully and with realistic expectations.

Root pruning too close to the tree can destabilise the tree, removing roots that are important to its structural anchorage. The general guidance is that root pruning should not be carried out within a radius less than five times the trunk diameter from the base of the tree. This means that for large trees, the distance at which root pruning is safe may be further from the tree than where the problem root is causing damage.

Root pruning also does not necessarily prevent regrowth in the same direction over subsequent years. Depending on the species and the site conditions, roots may grow around or past a pruning cut over time.

Where root pruning is appropriate, we carry it out with a clean cut using appropriate equipment. The root should be cut cleanly with a saw or reciprocating saw rather than chopped with a spade, which creates a ragged wound more prone to decay.

Option Two: Root Barriers

Installing a physical root barrier in the ground between the tree and the structure can prevent future root encroachment. Root barriers are typically high-density polyethylene panels installed vertically in a trench, deep enough to deflect root growth downward rather than allowing it to continue laterally. They are a recognised solution for new paving schemes where trees are being retained, but retrofitting them around an existing structure is more disruptive and expensive.

Option Three: Redesigning the Surface

Where the root lifting is in a path or driveway, one practical solution is to redesign the surface around the root system rather than fighting it. Permeable or flexible surfacing, gravel, loose stone, bark chip or resin-bound aggregate on a permeable base, can accommodate minor surface root movement without cracking or lifting in the way that rigid surfaces do. For garden paths in particular, this can be a very practical and attractive solution that works with the tree rather than against it.

Raising the level of the path slightly with a flexible surface material is also worth considering for paths where the root is creating a very localised lift, rather than attempting root pruning that may affect the stability of the tree.

Option Four: Removing the Tree

We will always discuss this option honestly if it is relevant. If the tree is fundamentally incompatible with the space it is in, if the root system is causing progressive and increasing damage that cannot be practically managed, and if the value of the tree in its current position does not justify the ongoing costs and disruption, removal may be the right answer. We will never push you toward removing a tree unnecessarily, but we will tell you honestly if we think it is the most sensible course of action in your specific situation.

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Phone/WhatsApp: 07376804724
Email: enquiries@maxreynoldstreeservices.com

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