Japanese knotweed on or near your property?

Not sure and need to know?

JustCheck™ is a new search and survey tool developed by Environet, leading specialists in Japanese knotweed, to assess the risk of knotweed on property in the UK. Providing specialist information for use in:

JustCheck™ evaluates relevant risk factors and categorises the property into one of 5 risk bands. Japanese knotweed risk can then be mitigated with;

  • Treatment/removal programmes, where knotweed is identified
  • Monitoring with 10 year insurance backed guarantees to cover any future treatment
  • Specialist indemnity insurance                                                                                                                                                                                                                                                                                                                                                                                       
  Site Inspection Intrusive Investigation
Database Search
Site History
Visual Site Inspection
Site Characterisation
Ground Investigation  
Risk Categorisation
  from £240+VAT from £850+VAT


About Japanese knotweed

Japanese knotweed is a highly invasive and destructive plant found throughout the UK, Europe and North America, growing on residential property, in gardens, on commercial property, brown and greenfield sites, railways, rivers and canals, roads and even in graveyards.

"It's estimated that 5% of UK homes are affected by Japanese knotweed."

It has a large underground rhizome system which is difficult to kill, expensive to remove and causes property damage. Not only can securing a mortgage on affected property be difficult but the courts also recognise that the mere presence of knotweed, even if only on adjoining property, devalues property.

"Japanese knotweed can have a major impact on people's largest and most important asset, their home." 

Knotweed is increasingly the cause of disputes and litigation in;

  • Encroachment cases between neighbours, where knotweed has been allowed to spread from one property to another
  • Misrepresentation cases between buyers and sellers, where knotweed presence is not properly disclosed during the sales process
  • Professional negligence cases between owners of affected land and their professional advisors e.g. valuation surveyors and conveyancing solicitors, where alleged negligent professional advice is given  

Be aware that Japanese knotweed may be present on site but might not be visible. This can occur where knotweed has been;

  • Treated but not killed, with rhizome induced into temporary dormancy
  • Cut down and concealed whether intentionally or not
  • Where recently encroached from adjoining property

A JustCheck™ assessment will help determine the level of risk and provide information on how that risk can be mitigated further.

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