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Identifying Japanese Knotweed in London

Japanese knotweed in London is prevalent, as we’ve discussed above. And, with the number of new build developments cropping up, it’s important that knotweed is identified sooner rather than later, as the cost to either property developers or homeowners is monumental.

Here at Japanese Knotweed Specialists, we’re able to identify Japanese knotweed year-round. We’re fully accredited by the PCA Invasive Weed Group, RICS and more, all to ensure that we provide the best service to any customer, as well as being up to date with all and any relevant laws and legislation.

Japanese Knotweed Removal Services We Offer in London

Across London, we offer a range of services to treat, manage and remove Japanese knotweed from your London property. We tailor each removal solution to the individual property or project, and it may include one or multiple of the services below:

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How Do We Eradicate Japanese Knotweed in London?

We use a whole range of treatments depending on the severity of the knotweed infestation, the urgency of the need for removal, and the ecological sensitivity of the site.

Foliage spraying and stem injection are our herbicidal methods. We can prevent the spread of Japanese Knotweed using barriers, and finally, we can excavate and remove the plant when speed is of the essence.

Why Choose Japanese Knotweed Specialists?

As a market-leading company, our work is accredited by the Property Care Association and the Royal Institute of Chartered Surveyors, as well as recognised by mortgage lenders. We work across the country and work with everyone from government agencies to private homeowners.

We offer:

  • a free assessment if you send us an image of a plant you suspect is Japanese knotweed
  • a 35-year guarantee if you use our eradication services. We were the first company in the UK to do this, and it stays with the property, enabling future homeowners to remain protected.

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Where Do We Operate?

Within London, we have worked in various boroughs including:

  • Croydon
  • Enfield
  • Bromley
  • Southwark
  • Bexley
  • Richmond Upon Thames
  • Harrow
  • Waltham Forest
  • Ealing
  • Newham

We operate not only in and around London, but also nationally around the rest of the UK, including South East England, South West England, The Midlands, Northern England, Wales and Scotland.

Working with Japanese Knotweed Specialists

We work across multiple sectors, both private and public, to offer our expert services, from consultancy to removal.

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Our teams will work considerately in your home and garden to ensure our removal service is not only thorough, but protects the habitats you may have also. You can also rest in the knowledge that we have trained our removal staff to work around pipes, such as gas or plumbing, ensuring your day-to-day life isn’t affected.

Residential Services


When preparing to develop a site, carrying out a survey and removal is best done before any construction starts. With our ability to carry out dog surveys, we can find knotweed all year round, and begin removal reactively to ensure your project isn’t delayed and can continue, backed by our guarantees.

Commercial Services

Get in Touch Today for Japanese Knotweed Removal in London

Speak to us today by calling on 0800 122 3326.

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Japanese Knotweed Removal in London FAQs

How important is Japanese knotweed removal for London homeowners?

Japanese knotweed, if left untreated, can cause significant damage to property. With the ability to grow up to 2cm a day in some cases and even break through walls, it is vital to treat this invasive plant once it has been identified to avoid further damage to your London home.

Am I legally required to remove Japanese knotweed from my London property?

The Wildlife and Countryside Act 1981 states that is an offence to plant or allow Japanese knotweed to grow in the wild. While it is not illegal to let it grow on your London property, if you, as the property owner, allows this invasive plant to spread from your property into the wild, you could land a fine of up to £5,000 or in some cases, a prison sentence.

How much does Japanese knotweed removal cost for my London property?

The cost of Japanese knotweed removal will vary depending on multiple factors. This may include the size of the area that requires treatment, the survey results, the method required and even the ecological state of the local area.  

Here at Japanese Knotweed Specialists, we conduct a full site survey which allows us to assess the infestation and the best way to remove it from your property, all for the best price possible.  

Do you offer guarantees?

Japanese Knotweed Specialists are the first company to offer a 35-year guarantee for Japanese knotweed. This means that if you’re selling a property, your purchaser will be able to secure a mortgage, or if you’re buying a property, you’re able to manage Japanese knotweed for the duration of your mortgage.

Want to know more about our guarantee offerings? Find out more