Tree Risk Assessment (QTRA / VALID)

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Tree Risk Assessment (QTRA / VALID)

Our Area of Expertise

Our Tree Risk Assessments use recognised, industry-approved methodologies such as QTRA (Quantified Tree Risk Assessment) and VALID to provide an objective, evidence-based evaluation of tree safety. These structured systems assess both the likelihood of structural failure and the potential consequences, taking into account how the surrounding space is used by people, vehicles and nearby buildings.

By analysing occupancy levels, target areas, defect severity, species characteristics and environmental factors, we create clear risk zones that help prioritise where management resources should be focused. This ensures that attention is directed to the areas of greatest need rather than applying unnecessary or blanket interventions.

The outcome is a transparent, defensible risk rating supported by clear data and professional judgement. Alongside this, we provide practical, proportionate recommendations to manage any identified risks. These may include remedial pruning, weight reduction, bracing, removal of high-risk trees, cyclical inspections, habitat retention strategies, or continued monitoring where appropriate.

Our assessments give landowners, estate managers and duty holders the confidence that risk management decisions are reasonable, accountable and aligned with modern best practice—helping meet legal responsibilities while retaining trees safely and sustainably. Contact our experts today!

If trees are present on or near your development site, most planning authorities will require a BS5837 tree survey.

It shows which trees may constrain development and helps shape the site layout around existing valuable trees.

Yes, we frequently collaborate with project teams to deliver compliant and practical tree solutions.

Absolutely. We can submit reports, attend meetings, and handle all tree-related aspects of your planning process.

All work is carried out to

Nationally Recognised Standards

Our works are carried out to modern arboriculture standards and the care of trees is our main priority.

All work is carried out to nationally recognised standards including BS3998:2010 and The European Tree Pruning Guide.

We consider our climbers to be among the best in the South-West and all works are carried out swiftly but safely. We operate in accordance with all current Health & Safety legislation and we are fully insured.

What we've been up to

Some of our work

At Devon Tree Services, we are a dedicated team of tree specialists providing tree surgery in Torbay, Plymouth, Exeter and the surrounding areas.

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Race to Zero Pledge

Our company recognises the importance of making a full and lasting commitment to reducing the greenhouse gas emissions from our activities, in support of the wider commitment of the world to limit global temperature increases and the impact on the planet.

How We Work

Our Process

At Devon Tree Services, we believe in clear communication, expert advice, and safe, efficient workmanship. Whether you’re a homeowner or managing a large estate, our process is designed to make your experience smooth from first contact to final clean-up. Here’s how we work:

Initial Consultation

We visit your site, assess the job, and offer expert advice.

Free Quotation

You’ll receive a clear, no-obligation quote with full details.

Expert Service

Our team carries out the work safely and efficiently.

Clean Finish

We leave the site tidy and dispose of all waste responsibly.

Devon Tree Services

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