How much does it cost to remove japanese knotweed is one of the most invasive plants in the UK and can have devastating effects on your garden, driveways and even your home. If left untreated it can damage properties and lead to structural damage requiring expensive remedial work. The best way to prevent these costs is to have a comprehensive plan in place which includes regular site surveys and treatment/eradication works.

Depending on the size of your garden and the extent of the knotweed problem the cost to remove it will differ. Herbicide treatment is the cheapest option but this should be considered as a form of control rather than removal, since the rhizome system will remain in the ground and can grow back within a few years. Often, herbicide treatment will also require follow up treatments over the years to stop regrowth.

Breaking Down the Costs: How Much Does It Cost to Remove Japanese Knotweed

It is important to be aware that using chemicals to treat Japanese knotweed can have an impact on the surrounding wildlife and may damage other nearby plants as well as hurting pollinating insects. It is important to hire an experienced contractor who understands the risks associated with chemical treatments.

Full excavation and disposal (also known as dig and dump) is the most costly method but it provides instant eradication. This option involves mechanically excavating the Japanese knotweed and the soil it is growing in which is then taken to a licensed landfill site for disposal. This type of treatment requires specialist machinery such as a digger and can be difficult to plan and carry out. There are also additional costs to consider such as the hire of mechanical machinery, fuel and a licenced landfill site cost. It is important to choose a contractor who will ensure they follow the environment agency’s duty of care guidelines.