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The Knotweed Company

The Knotweed Company Contact Details

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Jim Glaister
4 Woodgreen Road
SO22 6LH

About The Knotweed Company

Reliable, cost-effective treatment and removal of Japanese knotweed throughout England and Wales – our skilled professional team have a combined experience of over 25 years in invasive weeds treatment, particularly with the treatment of Japanese knotweed. We provide proven solutions as well as plain speaking, no nonsense, practical advice.
We pride ourselves on our honest approach to all our clients, who range from government bodies and national developers to individual private homeowners.
Our Property Risk Survey Reports can provide expert advice to assist in cases where the presence of knotweed is hampering the sale of property.
All of our programmes and advice reference best practice and the codes of practice issued by the Environment Agency (EA), the Property Care Association (PCA) and the Royal Institute of Chartered Surveyors (RICS). In addition, our Director is a BASIS-qualified advisor on the use of herbicides. All services are backed by a range of warranties to suit requirements. We are a PCA-approved contractor.

Our services include:
  • Herbicide Treatment
  • Excavation and Disposal
  • Root barrier supply and installation
  • Knotweed relocation or burial
  • Property Risk Survey Reports
  • Knotweed Management Plans
  • Verification Surveys/Reports
  • Knotweed Presentations
  • Expert Witness
  • Extended Warranties
  • Insurance-Backed Guarantees

We also treat other invasive weeds besides Japanese knotweed, including Giant hogweed, Himalayan balsam, Common ragwort, etc.

If you are a building developer we strongly recommend you have your development site checked for the presence of knotweed BEFORE the site is cleared or the ground is disturbed by demolition, soil sampling, etc. Identifying and isolating the knotweed early will provide more options for treatment, keep costs down, prevent unnecessary delays or stoppages to construction works and ensure you remain within the law.


The Knotweed Company Branches
The Knotweed Company
Unit 3 Royal Oak Court, Royal Oak Way North, Daventry, NN11 8PQ
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