Since its introduction to London as an ornamental plant, Japanese knotweed is now indisputably the UK’s most aggressive, destructive and invasive plant according to the Environment Agency.
Japanese Knotweed London
Japanese knotweed can cause damage to property if left untreated and is very difficult to control once established. It is listed under schedule 9 of the Wildlife and Countryside Act 1981. Prior to the London 2012 Olympics, approximately 10 acres of Japanese knotweed was removed from the Olympic Park development site and its surrounding areas. These works took approximately four years, incurring Japanese knotweed removal costs of around £70 million.
The presence of underground Japanese knotweed rhizome on or within 3m of a property will be deemed as affecting the property (Law Society’s TA6 property information form). Additionally, allowing knotweed to spread from a property is deemed as an actionable private nuisance and can lead to legal issues.
Japanese Knotweed Survey London
If you are selling or buying a property in London and think the property could be affected by knotweed, we recommend you commission a knotweed survey. We offer free* Japanese knotweed surveys, that include a RICS (Royal Institution of Chartered Surveyors) knotweed risk category assessment.
After surveying your property or site, we provide you with a knotweed management plan (KMP), which includes our survey findings, recommendations and costs for treatment. This could involve herbicide treatment, or complete knotweed removal via excavation, both backed by guarantees.
Japanese Knotweed Control London
Methodical and carefully managed Japanese knotweed treatment using the correct chemicals and dosages over a sustained period will successfully control and prevent the spread of knotweed. Our Herbicide Treatment Programmes come with a guarantee of preventing further above-ground growth but will not remove the underground rhizome contamination.
Japanese Knotweed Eradication London
Excavation can provide complete Japanese knotweed removal and it involves removing all the plant’s underground rhizome. Works should be carried out by experts such as Japanese Knotweed Ltd to ensure complete removal, as a piece of rhizome as small as your fingernail can regrow.
Japanese Knotweed Map London
Japanese Knotweed Removal Costs, London
Long-term herbicide treatment can be a cost-effective control method. The cost of the treatment programme depends on the size of the knotweed infestation to be treated. Our professionally delivered herbicide treatment programme will provide successful control of Japanese knotweed within a period of 3-7 years.
Where long-term control is undesirable or where the plans involve disturbing the rhizome contaminated ground, the alternative solution is excavation. Excavation of Japanese knotweed costs more than herbicide treatment due to labour, machine, waste removal and reinstatement costs. However, it can completely remove the problem allowing free use or development of the property. We provide cost-efficient excavation due to our extensive experience whilst minimising waste volumes.
Do not ignore Japanese knotweed. If it is identified and dealt with promptly, the cost of removing Japanese knotweed can be kept to a minimum.
Trust the Japanese Knotweed Specialists in London
Japanese Knotweed Ltd treat and remove Japanese knotweed for private landowners, local authorities and major building developers in London. We pride ourselves on being London’s trusted Japanese knotweed and invasive weed control experts and have offices in London, Southampton and Manchester.
Our work is covered by an insurance backed guarantee which satisfies mortgage lenders, allowing you to sell or purchase knotweed affected property in London
If you own or manage a property in London and think you have a knotweed problem, request a free survey today.
(*The Japanese knotweed survey is FREE. If we find the property is not affected by Japanese knotweed, there is currently a charge of £165 +VAT.)