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Japanese Knotweed

What is Japanese Knotweed

Japanese Knotweed is an invasive plant which is very difficult to control and manage.

It impacts on biodiversity by forming thick, dense colonies that can crowd out other plant species.

It is frequently found alongside:

  • roads
  • railways
  • watercourses

Information on how to identify, stop the spread and dispose of Japanese Knotweed is available on the Government website.

Prices and treatments

We offer the following treatment services for landowners to help control the spread of Japanese Knotweed:

Domestic sites: 5 year spray treatment plan
Total 5 year cost - £1,313.44 (incl. VAT)
Year Service Price (includes VAT)
1 Management plan and first treatment £397.08
2 Subsequent visit/re-treatment £274.91
3 Subsequent visit/re-treatment £274.91
4 Monitoring visit and progress report £183.27
5 Monitoring visit and confirmation report £183.27
Micro sites (up to 4m2): Spray treatment plan
Total 5 year cost - £824.71 (incl. VAT)
Year Service Price (includes VAT)
1 Management plan and first treatment £274.91
2 Subsequent visit/re-treatment £152.73
3 Subsequent visit/re-treatment £152.73
4 Monitoring visit and progress report £122.17
5 Monitoring visit and confirmation report £122.17
Larger sites: Bespoke treatments

Larger sites will need a bespoke management plan.

The quotation will match the domestic site charges, plus £17.81 per hour (incl. VAT).

This includes the added time spent on dealing with areas over and above 50m2.

Land owners consent is required and payment is to be made in advance.

Services we do not offer

Before making a request please see the following list of services we do not offer:

We do not:
  • investigate disputes with neighbouring land owners about the spread of Japanese Knotweed
  • assist in finding out who owns land that Japanese Knotweed is causing a concern
  • take legal action in relation to Japanese Knotweed
  • offer Insurance Backed Guarantees (IBG)

Request a service

You can complete our online form to request a:

  • survey
  • quote
  • treatment