Our Solution

On small sites the cheapest and most effective way to control Knotweed is to use a herbicide. We use a specialist Stem Injection System to inject a controlled quantity of herbicide directly into the plant stem. This is regarded as the most effective way of controlling or eradicating Knotweed. This direct targeting of the herbicide means there is no impact on any surrounding vegetation, wildlife, livestock or pets. Stem injection is accepted and authorised by the Soil Association for use on organic approved farms, without the loss of their organic status. Stem injecting is more labour intensive than conventional spraying but it is quicker and more effective. Spraying usually takes at least three years to eliminate the problem. The right Stem Injection treatment should control Knotweed in one growing season. However, a follow up treatment may be necessary in the second year.

Why chose Sheffield Knotweed Control?

You can find many large, national companies who will remove and eradicate Japanese Knotweed. A lot of their work is in the construction sector clearing development sites. Consequently, they have high overheads which are reflected in their prices.

We are a small, local company aiming to provide a quality affordable service for homeowners, gardeners and amenity site managers. We will provide a tailor made treatment plan for your problem at a price you can afford. Our aim is to eradicate your Japanese Knotweed with minimal disturbance to your garden and to the highest environmental standards.

Sheffield Knotweed Control will provide you with a free, no obligation quote and treatment plan. We carry out an Environmental Risk Assessment on every site. Three weeks after treatment we visit the site to ensure that all the knotweed present is dead and, if not, treat it again. We will return in the following growing season and, in the unlikely event of any re-growth, we will treat again as necessary.

A comprehensive treatment record will be completed for every job.

We will always work within The Environment Agency’s Code of Practice and have full Public Liability Insurance.

Land Remediation Relief – Tax Relief

Land owners and developers may now be able offset some of the cost of treating Japanese Knotweed under the Finance Bill 2009, which came into effect on April 1st 2009. The act allows tax deductions for the cost of treating land contaminated by Japanese Knotweed. As of 1st April 2009, bodies liable for corporation tax can claim a 150% deduction on expenditure for removing Knotweed. Costs will still need to be paid upfront but then claim it back at their year end.