Ongoing monitoring and management of Japanese knotweed over time. Includes scheduled inspections, treatment progress reports, and compliance documentation for property owners and developers.
44 specialists
Independent nationwide knotweed specialist led by a PCA Certificated Surveyor and Chair of the PCA Invasive Weeds Group. Provides Japanese knotweed control, bamboo treatment, and ten-year insurance-backed guarantees.
PCA-accredited Japanese knotweed specialists founded in 2007, with nearly two decades treating thousands of sites. Developed the proprietary IVM 'FAST' System herbicide treatment approach with nationwide coverage from offices in Birmingham, Cambridgeshire, and Oxfordshire.
Established in 1995, PBA Solutions was the first invasive weed control company to achieve PCA accreditation. PCA Contractor of the Year 2019, offering Japanese knotweed surveys, treatment, mortgage-compliant solutions, and 10-year insurance-backed guarantees.
The UK's longest established Japanese knotweed removal company, founded in 2002 by Mike Clough. Provides tailored strategies using proprietary JK Connect monitoring technology and MeshTech removal, with 10-year insurance-backed warranties nationwide.
PCA-registered Japanese knotweed specialists providing bespoke treatment and removal management plans for residential and commercial sectors nationwide. CSJK-certified surveyors deliver solutions recognised by all major banks and mortgage lenders.
Nationally recognised specialist in Japanese knotweed assessment, management, and legal reporting. Provides surveys, management plans, Part 35 expert witness reports, CPD training, and treatment across the UK.
UK leading ecological specialist contractor with over 25 years' experience. Services include forestry, fencing, ecology, invasive weed solutions, newt fencing, and landscaping for Rail, Utilities, Construction, and Civil Infrastructure sectors. PCA members offering insurance-backed guarantees.
Trusted family-run Japanese knotweed specialist offering nationwide coverage for surveys, removal, treatment, management plans, disposal, and insurance-backed guarantees.
Independent nationwide knotweed specialist led by a PCA Certificated Surveyor and Chair of the PCA Invasive Weeds Group. Provides Japanese knotweed control, bamboo treatment, and ten-year insurance-backed guarantees.
Specialist Japanese knotweed removal and site preparation company offering commercial and residential knotweed services across the UK, with offices in Swindon and Swansea.
Family-run specialist amenity contractor providing contract weed control, invasive weed treatment, amenity products, and City & Guilds training courses to businesses and local authorities nationally. Over 25 years of experience.
PCA-qualified Japanese knotweed specialist serving the North West including Chester, Wrexham, Crewe, Warrington, and the Wirral. Offers free identification, certified surveys, treatment, and 10-year insurance-backed guarantees.
PCA member and TrustMark registered specialist providing Japanese knotweed surveys, management plans, herbicide treatment, and insurance-backed guarantees. Based at Wood Lane Countryside Centre in Sheffield.
Independent nationwide knotweed specialist led by a PCA Certificated Surveyor and Chair of the PCA Invasive Weeds Group. Provides Japanese knotweed control, bamboo treatment, and ten-year insurance-backed guarantees.
The UK's longest established Japanese knotweed removal company, founded in 2002 by Mike Clough. Provides tailored strategies using proprietary JK Connect monitoring technology and MeshTech removal, with 10-year insurance-backed warranties nationwide.
PCA-qualified specialist in the identification, treatment, and remediation of Japanese knotweed throughout Wales. Over 10 years' experience offering surveys, management plans, herbicide treatment, stem injection, and insurance-backed guarantees.
Family-run PCA-accredited specialist providing certified Japanese knotweed removal across South Wales since 2014. Offers 5 and 10-year insurance-backed guarantees underwritten by QANW, with flexible 0% APR payment options.
The UK's leading independent Japanese knotweed advisor and the PCA's first approved independent surveyor. Provides specialist expertise and project management for the cost-effective identification and removal of invasive species.
Multi-disciplinary environmental and ecological consultancy headquartered in Brighton. PCA Contractor of the Year 2025, offering Japanese knotweed identification, surveys, and removal alongside environmental consulting services.
PCA-accredited Japanese knotweed specialists founded in 2007, with nearly two decades treating thousands of sites. Developed the proprietary IVM 'FAST' System herbicide treatment approach with nationwide coverage from offices in Birmingham, Cambridgeshire, and Oxfordshire.
The UK's longest established Japanese knotweed removal company, founded in 2002 by Mike Clough. Provides tailored strategies using proprietary JK Connect monitoring technology and MeshTech removal, with 10-year insurance-backed warranties nationwide.
PCA-accredited specialist in Japanese knotweed and invasive plant identification, control, and removal. CSJK-qualified Managing Director leads the team, offering free site surveys within 48 hours and 10-year insurance-backed guarantees nationwide from offices in Leeds and Rickmansworth.
Family-run PCA-accredited specialist providing certified Japanese knotweed removal across South Wales since 2014. Offers 5 and 10-year insurance-backed guarantees underwritten by QANW, with flexible 0% APR payment options.
Established in 1995, PBA Solutions was the first invasive weed control company to achieve PCA accreditation. PCA Contractor of the Year 2019, offering Japanese knotweed surveys, treatment, mortgage-compliant solutions, and 10-year insurance-backed guarantees.
The UK's leading specialist in invasive plant removal, established in 1996 and 100% employee-owned. Over 7,500 projects completed across England and Wales using eco-innovative, zero waste-to-landfill solutions. Work underwritten by an AA-rated insurer.
Award-winning, family-run Japanese knotweed specialist established in 2011. Provides PCA-accredited surveys, RICS-compliant mortgage reports, and professional treatment across the South West.
Japanese Knotweed Management Company providing professional invasive plant control and removal services across Northern Ireland and the Republic of Ireland. Specialist team delivers expert surveys, treatment programmes, and long-term management plans.
Japanese knotweed removal company and consultancy regulated by RICS (Royal Institution of Chartered Surveyors), with full PCA accreditation. Based in London with satellite offices in Bristol and Cardiff.
Established in 1995, PBA Solutions was the first invasive weed control company to achieve PCA accreditation. PCA Contractor of the Year 2019, offering Japanese knotweed surveys, treatment, mortgage-compliant solutions, and 10-year insurance-backed guarantees.
The UK's leading independent Japanese knotweed advisor and the PCA's first approved independent surveyor. Provides specialist expertise and project management for the cost-effective identification and removal of invasive species.
Japanese knotweed specialists providing fast, reliable surveys and management plans with insurance-backed guarantees, serving London, Surrey, Kent, Essex, and West Sussex.
Established in 1995, PBA Solutions was the first invasive weed control company to achieve PCA accreditation. PCA Contractor of the Year 2019, offering Japanese knotweed surveys, treatment, mortgage-compliant solutions, and 10-year insurance-backed guarantees.
Japanese knotweed specialists with over 20 years' experience in identifying, controlling, and removing knotweed from residential and commercial properties across the South of England.
The UK's longest established Japanese knotweed removal company, founded in 2002 by Mike Clough. Provides tailored strategies using proprietary JK Connect monitoring technology and MeshTech removal, with 10-year insurance-backed warranties nationwide.
Award-winning, family-run Japanese knotweed specialist established in 2011. Provides PCA-accredited surveys, RICS-compliant mortgage reports, and professional treatment across the South West.
Multi-disciplinary environmental and ecological consultancy headquartered in Brighton. PCA Contractor of the Year 2025, offering Japanese knotweed identification, surveys, and removal alongside environmental consulting services.
Award-winning, family-run Japanese knotweed specialist established in 2011. Provides PCA-accredited surveys, RICS-compliant mortgage reports, and professional treatment across the South West.
Award-winning, family-run Japanese knotweed specialist established in 2011. Provides PCA-accredited surveys, RICS-compliant mortgage reports, and professional treatment across the South West.
Employee-owned specialist contaminated land and remediation contractor based in Glasgow. In-house invasive weeds team treats Japanese knotweed, Giant Hogweed, and Himalayan Balsam across Scotland, offering 10-year insurance-backed guarantees.
Family-run Japanese knotweed specialist founded in 2006, operating nationwide throughout the UK. Provides surveys, management plans, herbicide treatment, stem injection, and excavation with 10-year insurance-backed guarantees.
The UK's leading specialist in invasive plant removal, established in 1996 and 100% employee-owned. Over 7,500 projects completed across England and Wales using eco-innovative, zero waste-to-landfill solutions. Work underwritten by an AA-rated insurer.
Employee-owned specialist contaminated land and remediation contractor based in Glasgow. In-house invasive weeds team treats Japanese knotweed, Giant Hogweed, and Himalayan Balsam across Scotland, offering 10-year insurance-backed guarantees.
Professional Japanese knotweed identification, treatment, and removal specialists serving homeowners, commercial property managers, developers, and public sector organisations across Scotland.
Japanese Knotweed Management Company providing professional invasive plant control and removal services across Northern Ireland and the Republic of Ireland. Specialist team delivers expert surveys, treatment programmes, and long-term management plans.
27 March 2026
A month-by-month guide to what happens after Japanese knotweed herbicide treatment begins — from the first spray to the final insurance-backed guarantee.
14 March 2026
A practical breakdown of Japanese knotweed survey, treatment, and removal costs in the UK for 2026. Covers herbicide plans, excavation, insurance-backed guarantees, and what affects your quote.
27 March 2026
How a PCA-certified specialist helped a homebuyer complete a stalled property purchase after Japanese knotweed was discovered during the survey, from first call to insurance-backed guarantee.
Knotweed Directory