Hand holding a Japanese knotweed stem


Whether you suspect or know you have knotweed a professional survey will confirm this for you. If you do have knotweed the report will cover everything we find including pictures and locations of knotweed stands.

Request a Survey


Having Japanese knotweed on your property can be anxiety inducing. We know. Whether it’s a small knotweed stand or a large infestation near commercial services, it’s a problem we can resolve for you. Having a survey will give you the information you need to know and provide us with information we need in order to provide a quote. The survey findings are detailed within a report that will go on to form a documented Knotweed Management Plan.

All our Japanese knotweed surveys are conducted by one of our CSJK qualified surveyors. Our expert surveys will find and record any visible signs of Japanese knotweed on, or affecting the property. Find out why we’re the first choice knotweed contractor.

Japanese knotweed Survey costs

If no knotweed is found on the property, or within 7 meters of the boundary, a call-out charge of £225 will apply. Read the full T&C’s of our free knotweed survey here.


Knotweed clump looking up to the sky with overhead services


If you are selling or buying a property that you suspect is affected by Japanese knotweed, it’s advisable to get a pre-purchase or pre-sale survey of the property. Getting a survey will enable you to fully understand the level of infestation that is on the property. If you’re buying, it will enable you to make an informed decision, and if you are selling – you can have a Knotweed Management Plan (KMP) in place.

A Knotweed Management Plan (KMP) is a prerequisite for house buying and selling where the property in question is affected by Japanese knotweed, as most mortgage lenders will insist on proof that there is a KMP in place. The Environment Agency also states that once you find Japanese knotweed on a development site, it is essential that you set up some form of KMP.

Discover how we helped this homeowner get rid of knotweed on their property to enable a sale.


commercial survey

Japanese knotweed can cause construction to grind to a halt and cause multiple headaches for developers and landowners. We work with construction, commercial companies and developers to ensure that Japanese knotweed infestations are dealt with quickly and efficiently, but will full regard to compliant practices.

Our fully accredited team will carry out full site surveys to establish problem and risk, assess the problem against any proposed development plans and will issue a remediation proposal in addition to our in-depth excavation, or treatment proposals outlined in the KMP.

Discover how we helped this private developer to get rid of knotweed on their site to enable construction.



Diverse Team of Specialists Inspect Commercial, Industrial Building Construction Site. Real Estate Project with Civil Engineer, Investor and Worker. In the Background Crane, Skyscraper Formwork Frames

referred survey

Our surveys are ideal for Solicitors, Estate Agents and Property Management companies with clients and customers requiring that service. By providing the survey on your behalf, we have the perfect partnership of skills to compliment your business offerings, and gives the customer an all-round solution. Better for you, and better for your customers.

We also provide a range of CPD style training services, from online presentations to face to face sessions which are ideal for surveying firms to assist their teams with identification of invasive species – keeping surveyors up to date with vital information including health and safety around noxious weeds.


A man in a hard hat, holding a clipboard, standing on the steps of an old rundown house.


Our friendly team can help with any suspected knotweed issues.

Why choose us

  • Trusted by 1000’s of long-term satisfied customers with a 5-Star rating from over 1000 reviews on Trustpilot
  • Free identification service to help you if you suspect that you have Japanese knotweed on your property
  • Fully CSJK accredited expert surveyors will visit your property to carry out the survey
  • We work to the PCA Code of Practice means we can provide you with an Insurance backed Guarantee
  • Detailed Management Plan that includes site plan map, RICS property risk category and photographs

Japanese knotweed LEGALITIES

There is a reported lack of awareness of the legal responsibility of homeowners to prevent knotweed from spreading, with only 36% knowing they could be sued and just 18% aware they could face prosecution. Japanese knotweed is NOT to be ignored. The information on this page is intended to give you some guidance on the laws relating to Japanese knotweed.

Japanese knotweed and the law

why a survey is important

In some cases, the presence of Japanese knotweed may be subject to a legal dispute such as encroachment (private nuisance), misrepresentation or professional negligence. Upon surveying our expert surveyors can provide an assessment that can be used in evidence for such claims.

We also conduct surveys on the completion of works to record the completed situation. This happens typically on construction sites where knotweed waste has been buried or relocated. The survey will show the position of the waste on-site. Such records are important for future management and use of the property and on development sites are included in the Operational and Maintenance Manuals.

To help understand and categorise the level of risk that the knotweed presents to the property, the Royal Institution of Chartered Surveyors (RICS) have created a “risk” table. The level of risk is defined by the proximity of the knotweed to the habitable area or the property boundary and if any structural damage has been caused.


Our friendly team can help with any suspected knotweed issues.