Japanese Knotweed Excavation – Residential Property in East Dunbartonshire
Location: Nr Lennoxtown, East Dunbartonshire
Sector: Residential
Invasive Weed Treated: Japanese Knotweed
Season: Spring
Solution: Mechanical Excavation
Duration: 1 day – with 2-year aftercare and monitoring
Client Problem
In a rural village, behind an old stone wall, our client faced a severe Japanese Knotweed infestation covering approximately 1,500m². Three separate stands had taken hold in an unmanaged garden, with a nearby stream creating a high risk of spread to neighbouring properties. The client wanted to eliminate the risk quickly to protect surrounding homes and regain control of their land. They were also planning to build a new garage in the area, making excavation and removal of Knotweed and rhizome material the most practical long-term solution.
Our Expert Solution
- A comprehensive CSJK-certified site survey was conducted to assess the full extent of the Japanese Knotweed infestation, including visible growth within both the client’s and neighbour’s gardens.
- Soil samples were taken for analysis and landfill acceptance.
- JBB Knotweed Solutions provided tailored options: a 2-year herbicidal treatment plan for certain areas and a mechanical excavation for the affected ground earmarked for development. Both included aftercare monitoring.
- All vehicles, machinery and waste licences were arranged in advance to ensure safe, compliant, and efficient completion of the excavation.
Site Challenges and Solutions Delivered
- Soil sampling undertaken to confirm correct disposal routes at licensed landfill facilities.
- Utility checks carried out prior to excavation for safe digging.
- Structural considerations ensured the stability of an adjacent old stone wall throughout the works.
- Restricted access meant a 5-tonne excavator was used to operate effectively within tight working conditions.
- Specialist removal required a grab truck to lift contaminated waste over a hedge line without impacting neighbours.
- Rural setting demanded careful planning so vehicles could access the site without causing unnecessary disruption.
Client Feedback
The client was delighted with the swift and professional removal of the Japanese Knotweed. The works provided peace of mind that neighbouring properties would not be affected and left the site level and ready for future landscaping. The cleared ground also created a safe foundation for the planned garage construction.
Key Project Outcomes
- Complete excavation and removal of Japanese Knotweed and rhizomes to a licensed waste facility.
- 18 tonnes of Knotweed-contaminated soil removed.
- Two additional areas treated with targeted herbicidal applications.
- Site left clean, level, and ready for the client’s landscaping and development plans.
Case Studies
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