A professional tree root investigation helps you design safely around trees when development within a Root Protection Area (RPA) cannot be avoided.
Ideally, new development should sit outside root protection areas. However, when constraints make this impossible, we help you understand root locations and design solutions that minimise impact.
As a result, you can demonstrate compliance with best practice and improve your chances of securing planning approval.
When Do You Need a Tree Root Investigation?
You may need a tree root investigation when:
- Development falls within a Root Protection Area (RPA)
- Planning conditions require further tree assessment
- You need to design around existing trees
- There is a risk of damaging significant roots
In these situations, accurate root mapping allows you to adapt your design and avoid unnecessary damage.
Air Spade Root Investigation
An air spade uses compressed air to remove soil without damaging tree roots.
This method:
- Exposes large roots safely
- Works well in suitable soil conditions
- Typically reveals roots to depths of around 300mm
- Avoids damage to underground services
Therefore, it provides a practical and cost-effective way to investigate shallow root systems.
Root Radar Surveys (Ground Penetrating Radar)
For a non-invasive approach, we use ground penetrating radar to detect and map tree roots below the surface.
This method:
- Identifies root locations without excavation
- Works through hard surfaces such as paving
- Reaches greater depths than air spade methods
- Delivers reliable results regardless of weather conditions
Although this option is more expensive, it is often ideal for complex or time-sensitive projects.
Installing Hard Surfaces Near Trees
When you need to install driveways, paths, or other hard surfaces near trees, careful design is essential.
We advise on suitable solutions that:
- Minimise impact within Root Protection Areas
- Use appropriate materials and construction methods
- Meet planning and best practice requirements
As a result, you can proceed with development whilst protecting retained trees.
Soil Decompaction and Root Environment Improvement
Compacted soil can significantly affect tree health. Therefore, improving the rooting environment is often essential.
We can arrange:
- Long-term improvements to root growth conditions
- Terravent decompaction works
- Vertical mulching to improve soil structure
Because healthier soil supports stronger root systems, these measures help improve tree stability and longevity.
Areas We Cover
We provide tree root investigation and site solutions across:
- Oxfordshire
- Berkshire
- Buckinghamshire
- Wiltshire
- Hampshire
- Northamptonshire
- London
Get Expert Advice for Building Near Trees
If your development involves building near trees or within a Root Protection Area, we can help.
Contact us to arrange a tree root investigation and get clear, practical advice for your site.