Southampton’S TRUSTED Knotweed EXPERTS

We have been helping Southampton’s homeowners, landowners and businesses with knotweed treatment and removal services since 2010. We’re available near you.

Request a Survey


Japanese Knotweed Ltd has been operating in Southampton and the surrounding areas since 2010 and we have established some really strong ties to local business and communities. We have highly trained and accredited surveyors and technicians carrying out treatment plans and excavations for hundreds of satisfied customers all throughout the Southampton area, and we would be thrilled to have your business.

Fill in the contact form to enquire about our services, and one of the team will get in touch.

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. If you are selling or buying a property that is affected by Japanese knotweed, request your free* Japanese knotweed Survey.

* There are circumstances where fees for surveys will apply. Details HERE.

Request a Survey

Contact us or get a quote


Excavation is the best option if you need Japanese knotweed removed for good.

Japanese knotweed is a highly resilient invasive species of weed that is capable of growing new shoots from its root network. These special roots are known as rhizomes, and even a tiny piece as small as 0.5g is capable of allowing the infestation to regrow. With root systems that bury deep into the ground, excavation of the contaminated soil is the best way to completely remove the infestation.

Request a Survey

Excavator working on clearing a site of Japanese knotweed ground contamination

Southampton’s Knotweed successfully CONTROLLED with TREATMENTs

Chemical Treatment using a special herbicide will control knotweed growth, and stop the spread. It does this by exhausting the plant’s ability to grow, forcing it into a dormant state and can be applied by spraying, stem injection or leaf wiping.

Over the course of the plan, the treatment programme will prevent the plant producing aerial growth and additionally, prevent the rhizomes from growing further. If the knotweed area is likely to be disturbed physical removal of the knotweed may be required instead.

Our herbicide programmes are packaged within a  Knotweed Management Plan (KMP), which comes with an Insurance Backed Guarantee.

Request a Survey

Japanese knotweed stems being injected with herbicide


The average cost to remove Japanese knotweed in Southampton varies, depending on the methods involved and the size of the affected areas. If it is identified and dealt with promptly, the costs of removing Japanese knotweed can be kept to a minimum. Long-term herbicide treatment is usually the most cost-effective control method. Our professionally delivered herbicide treatment programme will provide successful chemical control of Japanese knotweed within a period of 3-7 years.

Excavation of Japanese knotweed costs more than herbicide treatment due to labour, materials, waste removal and reinstatement costs. However, it ensures complete Japanese knotweed removal allowing free use or development of the property. We provide cost-efficient excavation due to our extensive experience whilst minimising waste volumes.

Following our professional surveys we will provide you with a no-nonsense, comprehensive report with no-obligation recommendations and quotes.

Request a Survey

New houses being built on a construction site

Southampton Knotweed Removal Services

Removing Japanese knotweed in Southampton starts with a survey

Why choose us

  • With hundreds of satisfied customers in Southampton and over 1,000 five-star reviews on Trustpilot, we’re the UK’s trusted Japanese knotweed experts
  • We work closely with you to tailor a site-specific package, often utilising several treatment techniques on a single site
  • We work to the PCA Code of Practice means we can provide you with an Insurance backed Guarantee

Our top clients

knotweed Eradication and removal of asbestos on southampton project

In this case study, we look at why cell burial was the best option for eradication of Japanese knotweed. In May 2018 Japanese Knotweed Ltd (JKL) were contacted to discuss plans to develop a large plot affected by Japanese knotweed in Southampton, Hampshire. The site possessed large areas of Japanese knotweed, which we had been chemically treating since 2015 under a knotweed management plan for the previous landowner.



Our friendly team can help with any suspected knotweed issues.