CSJK-Qualified Surveys, Mortgage Ready Reports & Practical Management Plans
We provide professional Japanese Knotweed surveys, reports, and herbicide treatment plans suitable for use in conveyancing, mortgage lending and land management. All surveys are undertaken by a Certified Surveyor in Japanese Knotweed (CSJK)-Qualified Surveyor and are structured to clearly identify risk, outline impacts on property and boundaries, and provide practical management recommendations.
Japanese Knotweed can have a significant impact on property sales, mortgage lending, and legal processes. Our role is to provide accurate identification, clear reporting, and practical management solutions that help all parties move forward with confidence.
Qualified & Competent Knotweed Assessment
We are Certified Surveyors of Japanese Knotweed (CSJK) with a level 4 qualification from the Property Care Association (PCA) , ensuring surveys and advice are carried out in line with current industry standards and best practice.
In addition, we are qualified to use professional grade pesticides, allowing us to design safe and effective herbicide treatment programmes where required.
Who is this service for?
Homeowners & Buyers
- Identifying knotweed risk before purchase or sale
- Supporting mortgage and survey requirements
- Avoiding unnecessary treatment costs
Estate Agents & Solicitors
- Clear lender appropriate reporting
- Defined risk categories and recommendations
- Fast turnaround times
Land Owners & Developers
- Site Constraints identification
- Management planning prior to development
- Ongoing monitoring and treatment oversight
Property owners have a duty to prevent spread, and failure to accurately disclose its presence during a sale may lead to disputes or delays. Many lenders require professional assessment and clear management recommendations before proceeding. A formal survey and report helps demonstrate due diligence and provides clarity for all parties involved.
Our Japanese Knotweed Services
| Service Type: | Prices (starting from): | Best for: |
| CSJK Survey & Report | £300+ | Homeowners and early-stage property transactions. |
| Knotweed Management Plan (KMP) | £450+ | Mortgage approval and property sales. |
| Treatment & Monitoring Plan | £1500+ | Long term control |
- CSJK Survey & Report (£300+): A physical site visit by a CSJK-qualified surveyor. This includes identification of Japanese Knotweed at the time of survey, written confirmation of findings and pictures where necessary. Where no Japanese Knotweed is identified, this will be clearly stated in the report.
- Knotweed Management Plan (KMP) (£450+): Our most popular choice for property transactions. This is a comprehensive document including a detailed site inspection, extent and risk assessment, mapping, photographs, formal written report suitable for mortgage and conveyancing purposes, and clear management recommendations. Required by banks and lenders to secure a mortgage on an affected property.
- Guaranteed Treatment & Monitoring Plans (£1500+): Our herbicide programmes typically span 3–5 years and include a 5 year Guarantee upon completion
Why Choose a CSJK-Qualified Surveyor?
A Certificated Surveyor in Japanese Knotweed (CSJK) is recognised by major UK mortgage lenders. Our reports are legally robust and specifically designed to satisfy the requirements of banks, solicitors, and insurers
Legislation
Whilst it is not illegal to have Japanese Knotweed on your property, it is a controlled plant listed under the Wildlife and Countryside Act 1981. This places a responsibility on landowners to ensure that Japanese Knotweed is not planted or allowed to spread into the wild.
In situations where Japanese Knotweed is present and there is a risk of it spreading beyond the property boundary, enforcement action may be taken under the Anti-social Behaviour, Crime and Policing Act 2014. This can result in notices being served and, where reasonable steps are not taken to control the plant, potential fines or further legal action.
Engaging professional assessment and appropriate control measures helps demonstrate due diligence and reduces the risk of enforcement or civil disputes
GFH Garden Services 