Tree expertise rooted in solid skills

A scheme’s success often hinges on how well trees have been considered

We work with you as 'partner and guide' to bring practical tree-related recommendations. We ask the right questions so we arrive at the right solution for each site. And because trees are our expertise we don't just stop at the first hurdle.

So whether advising on the design of new woodlands or the management of ancient woodlands, or carrying out tree surveys in sensitive and constrained sites, our expert advice will maximise your project's success.

Based in historic City of York we advise on trees across Yorkshire & beyond.

Asset 1@2x

Our story

Our founders became independent consultants in 2008. They each have more than 30 years’ experience of advising on trees and woodland and are both recognised through Chartered accreditation.

We are tree specialists with backgrounds in local government, multi-disciplinary consultancy and recreational and conservation organisations. So, we understand diverse sectors, and can bring our tree insights to positively impact projects.

Enviroscope is a business made and based in Yorkshire.  We are located in the historic city of York, delivering trusted advice to to projects large and small throughout England, Scotland, Wales and Northern Ireland.

We have been providing Trusted Tree Advice since 2008.


Our people


Guy Morrison

Principal Arboriculturist and Director

Experienced & Accredited

Guy has more than three decades of experience advising on trees, woodland and forestry.

Guy is also a highly qualified tree specialist.  He is a Registered Consultant and Chartered Forester with the Institute of Chartered Foresters and a Professional member of the Arboricultural Association.

In addition to degree level training in Environmental Forestry and Ecology, Guy has been awarded the the Royal Forestry Society's highly regarded Professional Diploma in Arboriculture.

Trees Planning & Construction

Guy provides reliable advice and practical and sustainable solutions to manage trees at sensitive or constrained sites.

He has advised on major UK infrastructure projects and planning-related developments.

As a former planning authority tree officer for the Forest of Dean and Worcester, he offers a valuable insight into tree and planning issues, street tree management and Tree Preservation Orders.

Guy has acted as arboricultural expert witness for schemes taken to review.

Tree Risk Assessment

Guy is highly competent and qualified in tree risk assessment and tree health diagnosis. He offers expertise in tree pest and diseases and has devised and undertaken strategic and focused ash dieback surveys.


Trees of Parks, Gardens & Estates

Historic parks and gardens and arboretums are a particular interest of Guy's. He advises on tree management within designed landscapes, preparing tree inventories, restoration and management plans for sites such as the Yorkshire Sculpture Park and The Royal Horticultural Society Harlow Carr.

He also advises on trees and development in historic locations such as The Royal Parks and Castle Howard.

Parkland & Veteran Trees

Guy brings both his arboricultural and ecological skills to Veteran Tree assessment and advice.  He is also skilled in the use of PiCUS tomography equipment to carry out tree decay investigations.

Guy has extensive experience in parkland management and restoration, and provides arboricultural input to Conservation Management Plans for bodies including The National Trust.

International Arboriculturist

Guy’s global projects include forestry projects in China, and tree surveys in Brazil, Ethiopia, Sierra Leone and South Africa.

Beyond Trees

Outside of work Guy is interested in gardens and gardening and has an impressive collection of houseplants. Guy also enjoys running and sailing.



Qualifications and accreditations

  • MSc Environmental Forestry, Bangor University
  • BSc (Hons) Ecology, The University of Sheffield
  • Professional Diploma in Arboriculture, Royal Forestry Society
  • Professional member of The Arboricultural Association
  • Registered Consultant and Chartered Forester with the Institute of Chartered Foresters
  • Certified Quantified Tree Risk Assessment user (QTRA)

Claire Leather

Tree & Woodland Ecologist and Director

Experienced & Chartered

Claire is an experienced and qualified Ecologist of more than 30 years. She is a full professional member of CIEEM and a Chartered Environmentalist.

Combining Trees & Ecology

When arboricultural and ecological issues overlap in our projects, her judgement is invaluable. As well as being a practised tree surveyor, Claire's focus is tree and woodland ecology advice.  Claire also has experience in lichen survey of orchards and churchyards.

Land Management Advisor

Claire's career includes roles for multi-disciplinary consultancies and government agencies.

She was Countryside Stewardship advisor in Wales advising farmers on environmental land management.

She has also worked for charitable trusts such as Groundwork & The Wildlife Trusts.

In her role at the Canal and River Trust she produced tree and woodland management plans for the Crinan and Caledonian Canals.

She has contributed to multiple Conservation Management Plans for rural estates, including several National Trust properties.

Trees & Ecology Advice for Planning

Various UK infrastructure, residential and commercial developments have been informed by Claire’s habitat surveys and ecological impact assessments and protected species advice.

Claire also prepares tree and woodland management plans, advises on hedgerow management and assessment, new woodland creation and orchard management.

International Environmental Advisor

A period working in south-west China gave Claire valuable knowledge of the role of forestry  in relation to flood management linked to land-use change.

After Hours

Claire's passion is for foreign languages, especially Chinese, German and French. She also enjoys mountain climbing and sailing.

Qualifications and accreditations

  • BSc (Hons) in Pure and Applied Ecology, The University of Sheffield
  • Chartered Environmentalist with the Society for the Environment


  • Full member of the Chartered Institute of Ecology and Environmental Management

Trusted connections

Beyond arboriculture, we link with professional associates for specialist input from archaeologists, topographical surveyors and landscape architecture. From bat surveys to landscape design, we can help you secure additional trusted services.

What we do

As independent arboricultural consultants, we work with you as 'partner and guide' to understand your objectives and bring you practical tree-related recommendations.

We offer professional, unbiased advice about trees for everything from planning submissions to tree safety and risk assessment.

Having the right tree survey scope upfront is critical to avoiding costly resurvey and design in the future. So, we advise you honestly and openly on what is required to move your project on.

Our aim is to help you get your project from base camp to summit by provide the right tree advice to unlock each stage. We present you with solutions, not problems.

To keep projects on track, we anticipate issues so they are solved early.  And we always aim to turn reports around within client timescales.

All our work is underwritten by our professional indemnity insurance. And our clients also benefit by how we keep abreast with current and industry best practice.

Take a look at the breadth of tree services we offer.


Thank you for the constructive meeting. I am so pleased you will be marking the trees to be felled in advance of Contractors starting work as I feel in safe hands with you and the woods will benefit.

Rural Estate Manager

Rural Estate, North Yorkshire

Our values

Enviroscope’s values are at the core of our business practice.

They are evident in our approach and throughout our projects.

Our values mean we deliver better results all round.


  • Professional excellence – from the tree expertise we provide to collaborative approach and strong customer relations
  • Responsive and innovative – from our client-focussed approach to applying new skills and technology
  • Authentic and Honest – we are always open, upfront and trusted.
  • Responsible – for client satisfaction and delivering on social value and sustainability goals.

I have been working with Enviroscope on arboricultural projects for the past 15 years and have always found Guy’s approach clear and systematic, supported by his excellent knowledge on arboricultural matters.


Director / Landscape Architect
Tetra Tech

How can we help you?

Please check out our Services and FAQs.

Or simply call us on 01904 479094 or email office@enviroscope.co.uk.

Asset 1@2x