Guaranteed Knotweed surveys, treatment and excavation for homes, businesses and development sites across Norfolk and the wider East of England.
IVM provides PCA‑accredited, fully guaranteed treatment and excavation programmes for Japanese Knotweed, Giant Knotweed, Hybrid Knotweed and Giant Hogweed across Norfolk. Our FAST System herbicide solutions and rapid excavation options are tailored to your site, timescales and budget, ensuring effective long‑term control or immediate site clearance for residential, commercial and development projects throughout the county. If you're unsure whether the plant on your land is Knotweed, our guide to Knotweed Lookalikes can help you confirm before taking action.
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 Norfolk, including Norwich, King’s Lynn, Great Yarmouth, Thetford, Dereham, Cromer and surrounding areas. For sites requiring immediate access, we also provide full excavation and soil‑removal services to keep construction and development programmes on track. You can learn more about how excavation compares to herbicide treatment in our guide to Excavation vs Herbicide.
Our Norfolk team has extensive experience supporting homeowners, surveyors, estate agents and construction companies across the region. We understand the challenges that come with boundary issues, development pressures, access restrictions and tight project deadlines — and we tailor our treatment and excavation programmes accordingly. If you’ve just discovered Knotweed and aren’t sure what to do next, our guide on What To Do If You Have Knotweed provides a clear step‑by‑step overview.
As a registered and approved PCA (Property Care Association) contractor, IVM delivers bespoke Japanese Knotweed solutions for every Norfolk client. No two sites are the same, which is why each treatment or excavation plan is built around the specific requirements of the property, the level of infestation and the timescales involved. For legal responsibilities relating to Knotweed, including property boundaries and development sites, see our article on Knotweed & the Law.
We provide lender‑approved Knotweed Management Plans (KMPs) for residential and commercial properties across Norfolk. These documents are recognised by all major banks, building societies and mortgage lenders, supporting both treatment‑based and excavation‑based strategies. If you’re buying or selling a property, our guide to Knotweed & Mortgages explains how lenders assess risk and what documentation they require.
Japanese Knotweed treatment and excavation are specialist services that require a qualified, accredited contractor. For effective, guaranteed control or rapid site clearance on residential or commercial sites in Norfolk, speak to the experts — Contact IVM. You can also explore real‑world outcomes in our Case Studies.
See how our PCA‑accredited specialists resolve real Knotweed issues across the region:
Station Road Car Park, Hoveton – Two‑year FAST System herbicide programme treating boundary‑line Knotweed while maintaining safe access and minimising disruption to car park operations.
Japanese Knotweed excavation is the fastest way to regain access to contaminated areas on Norfolk sites. Our PCA‑accredited team carries out full excavation, soil removal and site clearance for residential properties, commercial developments and construction projects across the county. For a deeper look at how excavation works, visit our dedicated guide to Japanese Knotweed Excavation.
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 can also review our guidance on Managing Knotweed on Construction Sites for project‑specific considerations.
Our PCA‑accredited specialists provide fast, compliant Japanese Knotweed herbicide treatment, professional surveys and full excavation services across Norfolk and the surrounding areas.
“Patrick was helpful and professional in his approach, taking due care to protect surrounding plants. The treatment was carried out efficiently and with great care.”
“We were very happy with the service provided by IVM, especially the thorough examination of the whole area. Everything was explained clearly and the work was completed to a very high standard.”
“IVM provided a very professional service. Everything was explained clearly and the work was carried out with great care and attention.”
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 Norfolk. Our PCA‑accredited specialists support homeowners, surveyors, developers and commercial clients throughout the county, delivering guaranteed solutions wherever Knotweed is found.
If your property or development site is located anywhere in Norfolk or the surrounding areas, 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
