Professional, nationwide Japanese knotweed surveys, treatment, removal, guarantees and insurance

Japanese Knotweed Ltd provide various treatment solutions backed by guarantee to fit most given situations. Excavations provide instant eradication and herbicide is an effective control strategy for land/facilities management.

Japanese Knotweed Ltd is the UK’s trusted invasive weed removal company with a proven track record in working successfully for construction companies, developers, housing associations, local authorities, facilities management companies and private landowners. Last year we completed 186 excavations, serviced over 5,000 herbicide contracts, and turned over £3.6m.

We provide invasive weed surveys and management plans, which include immediate excavation and/or long-term chemical treatment options with Insurance Backed Guarantees.


Excavating Japanese knotweed (or any invasive weed) provides an instant eradication solution backed by guarantee. As every site is different, our recommended excavation methods are bespoke, taking into consideration the site and any known change of land use and/or development plans.

Herbicide Treatment

Often the most cost-effective Japanese knotweed treatment and control method is a Herbicide Treatment Programme. Herbicide treatment involves methodical and carefully managed visits where the correct use of chemical over a sustained period of time will exhaust the plant, reducing the risk to the site and preventing further spread. Successful control is backed by guarantee.

Our Clients

We currently work with companies such as The Guinness Partnership, Lambeth Council, Partners for Improvement in Islington, Great Places in Manchester, Balfour Beatty, Taylor Wimpey and Kier.

We are rated 4.9 out of 5 on Trustpilot

Our Services

Services we provide include:

  • Free surveys
  • Free invasive weed identification (ident(Replace this parenthesis with the @ sign)
  • Knotweed Management Plans/Invasive Weed Management Plans
  • Herbicide Treatment Programmes
  • Excavation Services
  • Site Management Services
  • Insurance Backed Guarantees

Our Accreditations

We are Gold Constructionline members, Property Care Association Invasive Weed Control Group members, SSIP, Builder’s Profile registered and bronze members of the Supply Chain School of Sustainability. View our online brochure here.

Failing to control Japanese knotweed can result in private nuisance claims from neighbours.

Get in touch

If you suspect a property you manage is affected by an invasive weed, marketing(Replace this parenthesis with the @ sign)" target="_blank" rel="noopener noreferrer">contact us today. The sooner the weed is identified and treated, the easier it is to manage.