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specialist control services

residential japanese knotweed services

Japanese knotweed is a veracious and resilient weed that will grow relentlessly if left alone and cause stress and damage to residential property. Knotweed can also lower property value, causing issues with buying or selling. We help thousands of homeowners across the country to control and get rid of knotweed.


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If you have Japanese knotweed on your property, then it is your responsibility to do what you can to control it. If you ignore the infestation, it can cause damage to your property – or worse – result in legal issues or fines. Learn the risks and what you can do to control Japanese knotweed as a Homeowner.

homebuyers & sellers

If you are buying or selling a property that is affected by Japanese knotweed, it’s advisable to instruct a Japanese knotweed survey.


Lenders are often concerned about the damage that Japanese knotweed can do to a property – this raises questions about its ‘saleability’ in the future. This means that lenders want to understand the potential risk of losing money on a property that could reduce in value. This can make it more difficult to secure a mortgage.

Japanese Knotweed Ltd is a fully accredited business and we use the risk table laid out by the Royal Institution of Charted Surveyors (RICS) to help understand and categorise the level of risk that the knotweed presents on the property. The level of risk is defined by the proximity of the knotweed to the habitable area or the property boundary, and if any structural damage has been caused.

House 'For Sale' sign on suburban street of houses

A risk management example for Japanese knotweed

If you suspect that there is knotweed on the property you wish to buy or sell, we can conduct a professional Japanese knotweed survey for you that will include a detailed account of our findings, photographs, location plans and confirmation of the knotweed RICS property at risk category along with a knotweed management plan (KMP) proposal.

Armed with the results of the survey and the management plan, you will be able to ensure a much smoother buying or selling process. Click the button below to learn more or book a survey.

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Japanese knotweed damage

In its drive to expand, Japanese knotweed will exploit existing weaknesses, gaps or cracks in property, underground services, walls, concrete, foundations, fences, out-buildings and conservatories. As it grows and expands, it will increase the expansion of the gap or crack and cause damage to walls, ruin garden fences and break through into buildings.

In its search for moisture, the rhizomes will forge their way through structures without regard for their purpose – including underground pipes and electrical cables.

In addition to the damage root systems can cause, it can also cause problems above ground. Japanese Knotweed grows large ‘bamboo-like’ stalks. These stalks grow together in tight clumps. They grow large green ‘shovel-shaped’ leaves which can cover a wide area. This growth will block areas, recuse usable areas of the garden and also prevent natural flora and fauna from growing.

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Japanese knotweed growing through decking

Help for homeowners

Japanese knotweed help thousands of people from all over the country to control and remove Japanese knotweed from their property.

By using Japanese Knotweed Ltd, you will get:

  • Expert free Japanese knotweed survey, including RICS knotweed risk category
  • Bespoke treatment programme to suit your particular situation
  • Japanese knotweed guarantee and Insurance Backed Guarantee (IBG)
  • Expert legal knowledge, in particular knotweed encroachment and TA6 misrepresentation
  • PCA Qualified Surveyors and Technicians
  • A dedicated Customer Care team

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Japanese knotweed leaves - Latin name - Fallopia japonica




Japanese Knotweed Ltd was named as contractor of the year by the national trade body, the Property Care Association (PCA). We were announced the winner of the Invasive Weed category for larger businesses in October 2021.

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Why Choose Us?

  • We are the UK’s trusted Japanese knotweed removal company, treating and removing knotweed across the UK.
  • We have over 1000 five-star reviews on Trustpilot and thousands of existing client contracts.
  • We complete nearly 200 knotweed excavations per year and manage nearly 5000 herbicide contracts!
  • We are members of the Property Care Association and have a proven track record working successfully for local councils, developers, construction companies and private landowners.
A stem of Japanese knotweed leaves


Treating Japanese knotweed all starts with a survey. Our professional surveys come complete with a full situation report and obligation free recommendations.