Commercial Invasive Weed Control and Remediation

Specialist invasive weed survey, treatment and remediation services for commercial sites, infrastructure projects, developers, contractors and public sector organisations.

Oliver Brown Ltd supports larger invasive weed projects, including Japanese knotweed, giant hogweed, contaminated soils and rhizome removal. We provide practical treatment plans, compliant disposal options and site-specific remediation support for projects where invasive weeds could delay works, increase risk or create long-term management issues.

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Japanese Knotweed, Giant Hogweed and Invasive Weed Treatment

Invasive weeds can create serious issues on construction, infrastructure, development and land management projects. Left unmanaged, species such as Japanese knotweed and giant hogweed can affect site safety, programme timescales, soil movement, legal responsibilities and long-term land value.

Our role is to help clients understand the extent of the issue, choose the right treatment or removal method, and complete works in a way that is practical, compliant and suited to the wider project.

We work with commercial contractors, local authorities, developers, landowners and organisations managing larger sites where invasive weed control needs to be planned properly from the outset.

Japanese knotweed

Survey, management, treatment and removal options for commercial sites affected by Japanese knotweed.

Giant Hogweed

Specialist control and management support for sites where giant hogweed presents a safety or access risk.

Soil Screening

Screening of affected soils to help identify and separate viable plant material where appropriate.

Soil and Rhizome Removal

Excavation, handling and removal of affected soil and rhizome material, including compliant disposal to licensed landfill where required.

Treatment Plans

Clear, site-specific treatment plans to support remediation, construction sequencing, planning conditions, land sale requirements or ongoing site management.

Invasive Weed Expertise Led by a PCA Qualified Japanese Knotweed Surveyor

Simon York leads invasive plant projects for Oliver Brown Ltd, bringing 26 years of experience in invasive weed management. As a PCA qualified Surveyor of Japanese Knotweed, he supports clients with site surveys, detailed reporting, treatment planning and the operational management of works on site.

His approach is focused on the whole project, not just the weed issue in isolation. That means looking at programme, site constraints, safety, compliance and the most practical combination of treatment or eradication methods to help keep works moving.

Simon also holds relevant herbicide application qualifications, including PA6 A W for herbicide use on or near water, along with Site Supervisors Safety Plus, CSCS, first aid, CAT and Genny, asbestos awareness, and needles and sharps awareness training.

Why work with Oliver Brown Ltd?

Oliver Brown Ltd brings together practical site experience, specialist machinery and commercial project understanding. We are used to working on larger sites where safety, access, compliance, programme timing and clear communication matter.

Our team can support projects from initial assessment through to treatment, excavation, disposal and long-term management planning.

Our Recent Projects

Need support with a Commercial Invasive Weed Project?

If Japanese knotweed, giant hogweed or contaminated soil is affecting your site, speak to Oliver Brown Ltd. We can assess the issue, recommend the right treatment or removal route, and support the work with practical, compliant solutions for larger commercial projects.

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"Professional, great at what they do and very easy to work with. We have worked with OBL on various projects and would not hesitate to recommend them."

Steve J, Johnson Quarry Group

"Completed hydroseeding obligations for a large property development and was extremely professional and efficient. Highly recommended."

Tony b

"Oliver Brown work with a great range of hydroseeding machinery. Their industry knowledge is fantastic and they are very much up together with the latest technology."

Mark G

Invasive Weed Control FAQs

These FAQs cover some of the common questions we’re asked by contractors, developers, landowners and public sector organisations planning larger invasive weed projects.

Do you work on domestic Japanese knotweed projects?

Our invasive weed service is mainly focused on larger commercial projects, typically over £10,000. For smaller domestic enquiries, we may not be the right fit.

Can you remove Japanese knotweed from site?

Yes, where removal is the right option. This may include excavation, soil screening, rhizome removal and disposal to licensed landfill, depending on the site and project requirements.

Can you provide a treatment plan?

Yes. We can prepare practical treatment plans for commercial sites, including options for control, removal, disposal and longer-term management.

Do you cover the whole UK?

For suitable commercial invasive weed projects, we can work UK-wide. For most other services, our typical operating area is around a 2-hour radius of our base.