PCA‑accredited specialists delivering fast, compliant Knotweed solutions for residential, commercial and development sites across London and the wider Greater London region.
IVM provides PCA‑accredited, fully guaranteed Japanese Knotweed treatment and excavation services across London, delivering tailored FAST System herbicide programmes and rapid site‑clearance options for residential, commercial and development projects throughout the capital. Every solution is designed around your site, timescales and budget to ensure effective long‑term control or immediate clearance.
As specialists in invasive weed control, Invasive Vegetation Management & Treatment Ltd (IVM) uses the advanced IVM ‘FAST’ System — a scientifically developed approach that combines the latest research with modern application techniques. This ensures fast, reliable and long‑lasting control of Japanese Knotweed and related species across Greater London.
Our directors bring over 95 years of combined experience in invasive vegetation management. Our operational team includes highly experienced specialists who have delivered large‑scale weed‑control programmes across London and the UK, ensuring every project benefits from exceptional technical knowledge, rigorous standards and professional oversight.
IVM has extensive experience working to construction schedules, development programmes and mortgage deadlines throughout London. All operatives are trained to high standards, are NRoSO members, and follow strict Health & Safety and environmental protocols.
As a registered and approved PCA (Property Care Association) contractor, IVM delivers bespoke Japanese Knotweed solutions for every London client. No two sites are the same — and neither are our treatment plans.
We provide lender‑approved Knotweed Management Plans (KMPs) for residential and commercial properties across London. These documents are recognised by all major banks, building societies and mortgage lenders, enabling lending on affected properties.
All quotations, reports and recommendations are clear, transparent and easy to understand. With decades of experience supporting homeowners, surveyors, estate agents and construction companies across London, we understand boundary issues, deadlines, budgets and the pressures that come with them — and we tailor our programmes accordingly.
Japanese Knotweed treatment is a specialist service that requires a qualified, accredited contractor. For effective, guaranteed control on residential or commercial sites in London, speak to the experts — Contact IVM.
With offices in Birmingham, the Midlands, Cambridgeshire and Oxfordshire, IVM provides nationwide coverage with strong regional expertise. As proud members of the Property Care Association (PCA), all surveyors carry the CSJK qualification, meeting the industry’s recognised standard for Japanese Knotweed assessment.
IVM also offers affordable, guaranteed Japanese Knotweed treatment programmes for residential properties in London, with flexible payment options and no minimum charge. Learn more at What to Do If You Have Knotweed.
See how our PCA‑accredited specialists resolve real Knotweed issues across Greater London:
West London – FAST System eradication enabling a new apartment development to proceed without soil removal or the need for root barrier installation.
Chiswick, London – Professional herbicide treatment and monitoring programme achieving complete eradication at a residential property and restoring full lender confidence.
South London – Multi‑season herbicide treatment programme delivering full control and providing lender‑compliant documentation for affected homeowners.
Japanese Knotweed excavation is the fastest way to regain access to contaminated areas on London sites. Our PCA‑accredited team carries out full excavation, soil removal and site clearance for residential properties, commercial developments and construction projects across Greater London. For a comparison of treatment methods, see our guide on Excavation vs Herbicide.
Excavation is ideal when deadlines are tight, construction is underway, or when a site requires immediate clearance. We remove all Knotweed‑affected soils, transport them to licensed disposal facilities, and provide full documentation for compliance, lending and development requirements. Developers and contractors can also read our article on Managing Knotweed on Construction Projects for guidance on keeping sites compliant and avoiding delays.
If you’ve just discovered Japanese Knotweed on your property or development site, our guide What To Do If You Have Knotweed explains the immediate steps to take before excavation or treatment begins.
Our PCA‑accredited specialists provide fast, compliant Japanese Knotweed herbicide treatment, professional surveys and full excavation services across London and Greater London.
“IVM have always provided a reliable and professional service. Their reports are clear, detailed and easy to follow. We continue to use them across our portfolio.”
“IVM provided an excellent service from start to finish. Their knowledge and guidance throughout the process was invaluable.”
“We were extremely pleased with the service provided by IVM. The team were efficient, knowledgeable and completed the work to a very high standard.”
As members of the Property Care Association (PCA), we can provide clients with 10‑year insurance‑backed guarantees.
PCA - Read MoreWe operate throughout the UK, offering responsive support and dependable nationwide service wherever you are.
More DetailsWe design all of our treatment programs around your needs, offering stage payments for easier budgeting.
Why IVM?Thousands of satisfied clients, ranging from residential homeowners to large commercial clients.
Read ReviewsIVM offer tailor-made eradication packages for all invasive weeds. The choice ultimately falls with the client. Our services include:
• IVM ‘FAST’ System Eradication
• Standard Herbicide Treatments
• Dig and Dump Solutions
• On-Site Burial Solutions
• Membrane / Root Barrier Systems
• Supervised Excavation Technology
• Stem Injection Systems
All of IVM’s Japanese Knotweed treatment programs come with a
10‑Year Guarantee.
If a property purchase or sale is involved, we recommend the
10‑Year Insurance Backed Guarantee (IBG).
To read more about The Property Care Association (PCA),
see our PCA Japanese Knotweed guidance.
Our aim is to combine great customer service and satisfaction with professional members of our team carrying out quality work to an extremely high standard.
“We are extremely pleased with the efficient and comprehensive service which IVM provide.”
- David Wilson Homes -
“We have had the pleasure of working alongside the team from IVM on a number of occasions and are proud to thank Invasive Vegetation Management Ltd for their support. Their professionalism, attention to detail and understanding of invasive weed eradication within the building and construction industry has been invaluable.”
- Red Materials -
“IVM provide a great service.”
- Phoenix Housing -
“The majority of our sites have been treated by IVM using the ‘FAST’ System. We have found this system to have a 100% success rate in eradicating Japanese Knotweed within the desired timescale.”
- Lewisham Homes -
“IVM made a worrying situation far less stressful than expected. They gave clear, straightforward advice and did exactly what they promised — well done!”
- ARUP -
Herbicide Treatment in Situ
2 Year + 2 Year Monitoring — Lower CostsExcavate, Relocate & Treat
3 Year+ — Allows Quick Access to AreaExcavate, Remove from Site
Very Short Timescale — Higher Cost
IVM provides professional Japanese Knotweed removal and treatment across all areas of London. Our PCA‑accredited specialists support homeowners, surveyors, developers and commercial clients throughout the capital, delivering guaranteed solutions wherever Knotweed is found.
If your property or development site is located anywhere in London, our team can provide a fast, compliant and fully guaranteed Japanese Knotweed solution. Contact IVM to arrange a survey or request a quotation.
Please use the details shown below to contact IVM:
MIDLANDS OFFICE
IVM, Hill Top, 11 Ley Rise, Sedgley, West Midlands, DY3 3EU
Click to Email 07843 017974
CAMBRIDGE OFFICE
IVM, 118 Greenhaze Lane, Great Cambourne, Cambridge, CB23 5BH
Click to Email 07977 134723
SALES OFFICE
IVM, 2 Stone Cross, Water Orton, Birmingham, B46 1NA
Click to Email 07836 321219 / 0121 366 8916
SOUTH WEST OFFICE
IVM, Orchard Way, Witney, Oxford, OX28 4EP
Click to Email 07889 634237
