Who are

Japanese Knotweed Removal

At Japanese Knotweed Expert Limited we have been eradicating Japanese knotweed for over 25 years. As such, our team have the knowledge and experience to deal with any outbreak of this invasive weed. We are so confident in the services that we provide, that we offer 10-year company guarantees on all of the work that we carry out. If required, we can also provide 10-year insurance backed guarantees with any Management Plans implemented.

We cover the entirety of England and Wales, identifying and treating Japanese knotweed and other invasive weeds. At our head office we have a dedicated team who are on hand to assist our clients with any advice they need.


We are also happy to offer advice to property developers, builders, estate agents and surveyors.

Why Choose Us?

We pride ourselves on the high quality service that we provide and offer our clients three key promises.

Japanese Knotweed Expert - Removal through Burying

A professional service delivered with expert knowledge – Our team have over 20 years of experience working with Japanese knotweed and have the qualifications needed to provide our clients with a professional service. Our surveyors are Certified Surveyors of Japanese knotweed (CSJK) and can provide our clients with the answers to any questions they may have.

Fantastic customer service – We provide our customers with the best experience possible when working with us. By answering your phone calls within 2 rings and your emails on a 24/7 basis, we provide you with the peace of mind you need when dealing with this invasive weed.

Japanese Knotweed
Japanese Knotweed Expert

Individually tailored solutions – Every case of Japanese knotweed will be different. This can be due to the location of the site, the size or surrounding areas. We will work closely with you to put together an individually tailored management plan that will be most suited to your situation.

Honesty is an integral part of our company ethos…

Approximately 20% of our clients worry that they have Japanese knotweed and it turns out to be something quite different.

To put your mind at rest, we provide free identification by email. Just send us a photograph of the suspected weed and we will get back to you within 24 working hours.

If it is identified that there is Japanese knotweed on your site, we can carry out a site survey for you and put together a tailored management plan. The costs for these will be clearly outlined prior to commencing any work, with no hidden fees.

What can we do for you?

Free Identification – Send us a picture of the suspected plant and we will get back to you by email within 24 working hours. If you have any questions regarding the identification, we are available via phone to answer any of your questions.

Japanese Knotweed Site Survey – Our surveyors will visit your property to complete a site survey within 48 hours of your initial enquiry. We will then provide you with a detailed survey report that can be presented to a mortgage company.

Japanese Knotweed Management Plan – Identifies the most appropriate treatment or removal method for your case of Japanese knotweed. This also includes a treatment schedule, with a breakdown of all treatment or removal costs involved.

Treatment or Removal – We provide a variety of different treatment methods to suit each individual site and client. If you own a residential property, we would usually recommend a herbicide treatment. Alternatively, if you are a commercial entity, we suggest a full excavation of the site to allow you to continue with your developments plans without delay.

10-year Company Guarantee – We offer a 10-year company guarantee. This guarantees that, if Japanese knotweed returns to the site within 10 years of the removal, we will return to treat it free of charge.

10-year Insurance Backed Guarantee – If you are selling or purchasing a property, mortgage companies will require a 10-year insurance backed guarantee to be in place. As a member of the Property Care Association, we can provide insurance backed guarantees when required.


Japanese Knotweed Expert is one of only a handful of companies in the UK that is an accredited member of the Property Care Association. Our surveyors are also PCA certified surveyors of Japanese knotweed (CSJK) which allows us to provide management plans that are accepted by mortgage companies. The Property Care Association requires all of its members to adhere to strict requirements, which ensures that our customer receive a professional, reliable service.

Our team also have the necessary NPTC qualifications that allow us to treat invasive weeds.

These include:

  • PA1 –                    Pesticides Application Foundation Unit
  • PA6 –                   Hand Held Applicator
  • PA6AW –             Water Applicator

Japanese Knotweed Expert have a number of ISO accreditations. These ensure not only the correct processes are in place but also that we engage in the latest best practice methods. The ISO accreditations we have are:

  • ISO 9001 : 2015 certified –                               Quality Management System
  • ISO 14001 : 2015 certified –                             Environmental Management System
  • BS OHSAS 18001 : 2007 certified –                Occupational Health and Safety Systems

Japanese Knotweed Expert meets all the requirements of RICS (Royal Institution of Chartered Surveyors,) local authorities and mortgage lenders. Japanese Knotweed Expert Ltd is proudly represented by our parent company Planterra Ltd. The Planterra group provides a range of services within the land maintenance and development industry including landscape schemes and strategies, the removal of Japanese Knotweed and other invasive weeds and Part 35 Compliant Expert Witness reports. 

Report provided within 48 hours

Book your site survey today