Japanese Knotweed Removal in Wiltshire

Get in touch

At Invasive Weed, we specialise in Japanese Knotweed removal, offering safe, effective, and fully compliant solutions for residential, commercial, and industrial properties in Wiltshire. 

Japanese Knotweed is an aggressive invasive plant that can damage buildings, reduce property value, and create legal issues for landowners.

Our expert team provides chemical treatment, excavation, soil containment, and long-term monitoring to ensure complete eradication and prevent regrowth.

For certified Japanese Knotweed removal in Wiltshire, contact us today for a free consultation.

Enquire Today

Why Is Japanese Knotweed a Problem?

Japanese Knotweed removal is necessary as it poses significant risks due to its aggressive growth. This growth allows it to spread rapidly, with roots extending up to 3 metres deep and 7 metres horizontally. 

This can cause structural damage to buildings, driveways, and drainage systems, making it a significant concern for homeowners and businesses.

Landowners are legally required to control and prevent its spread, and failure to do so can result in fines, legal action, and restrictions on property sales. 

Mortgage lenders may also refuse loans on properties with untreated Japanese Knotweed, making professional removal essential for property value and compliance.

What Methods Are Used for Japanese Knotweed Removal in Wiltshire?

Japanese Knotweed removal methods include chemical treatment, excavation, soil management, biological control, and ongoing maintenance.

These methods help with the following aspects:

  • Chemical treatment (Herbicides) – Professional application of glyphosate-based herbicides, ensuring long-term suppression and eventual plant death.

  • Excavation & removal – Complete physical removal of Knotweed plants, roots, and contaminated soil, ideal for construction sites and high-risk areas.

  • Soil screening & containment – Excavated soil is screened and treated to prevent regrowth, ensuring safe disposal or on-site management.

  • Biological control – Introducing natural predators (such as psyllid insects) to slow Knotweed spread, used as a long-term eco-friendly approach.

  • Ongoing monitoring & maintenance – Regular site inspections and preventative maintenance to ensure no regrowth occurs after treatment.

How Much Does Japanese Knotweed Removal Cost in Wiltshire?

Japanese Knotweed removal costs in Wiltshire range from £1,000 to £20,000, depending on infestation size, treatment method, and site accessibility.

Small residential infestations, where chemical treatments are sufficient, may cost between £1,000 and £3,000. 

More significant commercial and industrial sites require excavation and disposal of contaminated soil, costing between £10,000 and £20,000+.

Additional expenses may include soil screening, legal documentation for property transactions, and disposal fees for contaminated materials.

Contact Invasive Weed in Wiltshire to get customised pricing for Japanese knotweed removal.

[button cta=‘Get a Price’]

Is a Permit Required for Japanese Knotweed Removal?

Japanese Knotweed removal is regulated by the Wildlife and Countryside Act 1981, as it is an offence to allow it to spread into the wild.

The Environmental Protection Act 1990 also classifies excavated knotweed-contaminated soil as controlled waste, requiring licensed disposal at an approved facility.

Restrictions on herbicide use also apply, particularly near watercourses and protected land, meaning professional treatment is essential to ensure legal compliance.

How Long Does Japanese Knotweed Removal Take?

Japanese Knotweed removal can take days with excavation or 2 to 5 years with chemical treatments for complete eradication.

Excavation and removal provide an immediate solution, with most sites cleared within a few days to weeks, depending on the area size.

Long-term management plans are essential to ensure complete eradication, as knotweed can regrow from even the smallest remaining root fragments.

What Are the Environmental Considerations In Japanese Knotweed Removal?

Proper Japanese knotweed management involves safe herbicide use, which is crucial, as improper application can contaminate water sources and harm wildlife.

Excavation must be carefully managed to prevent soil contamination, and all waste must be disposed of legally. 

Our services prioritise eco-friendly removal methods, ensuring compliance with UK environmental protection laws and sustainable land restoration.

Contact Invasive Weed in Wiltshire to get detailed information on Japanese knotweed management.

[button cta=‘Get In Touch’]

We cover Wiltshire

Get in touch

We aim to get back to you in 1 working day.


Skip to

Gallery