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Non-destructive root investigations (NDRI) are essential when construction, excavation, or development could impact valuable trees. We use specialised, tree-safe methods to expose and assess roots without harm, providing the accurate data needed for informed decisions.

NDRI is typically required for:

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• Assessing tree tolerance to excavation, site cuts, footing placement, or new builds near roots.

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• Meeting planning prerequisites where worthwhile/significant trees are close to proposed developments.

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• Determining safe placement of vehicle crossovers to protect existing street trees.

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• Planning and selecting excavation methods for underground services (e.g., pipes, cables) in tree-sensitive areas.

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• Siting and installing bored piers, screw piles, or other foundations within critical root zones on development sites.

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• Forensic analysis of suspected root-related damage to underground assets, building footings, or structures.

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• Evaluating root size, extent, and contribution to issues like drying settlement, footing distress, or other structural problems.

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We employ hydro excavation (vacuum extraction combined with low-pressure water jetting) to gently expose roots while preserving root bark integrity and minimising soil disturbance. This non-invasive approach ensures roots remain healthy and functional.

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Understanding tree root growth patterns, spread, and function within the soil sphere (rhizosphere) is critical for effective town planning, development compliance, and long-term protection of worthwhile trees and the urban forest.