Consultancy services

We provide consultancy services on Japanese knotweed and other invasive plants. If you are a Property Professional needing any advice on Japanese Knotweed we are the people to help you

How we can help your business


We keep abreast of recent innovations and technology in the fight against Japanese knotweed and other invasive plants like bamboo.


 We provide unbiased professional advice for the management and removal of invasive plants.


Our Japanese knotweed Guarantees are underwritten by an “AA-” rated insurer, providing the highest level of financial security.

We provide Japanese knotweed CPD seminars at client premises and host regular webinars. Get in touch to find out more.

We publish regular insights and guidance bulletins through Beacon, our invasive plant intelligence hub. Sign up to receive them directly to your email for free.

Other things we do for our clients

Identification Advice

The devil is in the detail, so it’s imperative to know what species of plant you are dealing with, the maturity, extent and condition of the underground rhizome or root system, and the ground conditions in which it is growing. Armed with this information a management or remediation plan can be devised that has the highest chance of success.

Identification of invasives including knotweed varieties and hybrids
Visual site surveys to assess extent of infestations and site conditions
Intrusive investigation to assess lateral and vertical spread of rhizome
Remediation strategy for development sites
Soil testing (waste acceptance)
Japanese Knotweed Management Plans (JKMPs) for residential properties
Bio-security plans
Tender specifications
Cost estimation & tender analysis

Remediation Consultancy

There is a range of options for tackling knotweed, with vastly differing costs and timescales. The key is understanding each customer’s specific project requirements and offering the most cost-effective solution. We can provide specifications for you to obtain competitive tenders and we can review and advise on tender returns.

“Excellent service from Environet, they covered every aspect of the works with diligence and professionalism and went the extra mile when needed.”

Tim Lewis, Design Coordinator - Kier Living South West

Legal expert witness

Whether it’s a claim for misrepresentation, encroachment in private nuisance, or professional negligence we can provide expert opinion, either as a single or joint expert, for the claimant or defendant.

Case review and pre-litigation reports
CPR 35 compliant reports for knotweed litigation
Expert Witness court hearings
Solicitors and Counsel
Property Valuation Specialists
Tax Consultants (Land Remediation Tax Relief)


We can also put you in touch with other specialists with expertise in knotweed including;

We regularly present to Surveyors, Estate Agents, Ecologists, Conveyancing Solicitors, Project Managers, Property Consultants, Architects, and Local Authorities.

Our face-to-face seminars are tailored specifically to the audience and their desired learning outcomes to ensure maximum benefit every time.  Delegates are encouraged to ask questions throughout the session and share their experiences.

Our Seminars can be held at any office/auditorium location with suitable facilities or as part of a wider event.

We work for

To find out how we can help you and your business

We provide consultancy services on Japanese knotweed. If you are a property professional needing any advice on Japanese knotweed, or any other invasive plant species we are the people to help you.

Reviews from other commercial clients

Emily from Environet delivered a very interesting CPD session for my team where we all learnt more than we expected to. As ecologists we are used to identifying Japanese Knotweed on sites but we weren’t familiar with the methods a client needs to undertake to rid themselves of the problem or the potential knock on effects to other species. The session was very well delivered in an informal manner by a fun yet knowledgeable presenter. I’d recommend this CPD session to other ecologists and other relevant disciplines.”

Jon Garner, Green Ecology

Many thanks for attending our AGM the other week, all of our surveyors found your talk very informative. The presentation was very comprehensive and really helped us learn more about Japanese knotweed, particularly identification techniques. We have had several speakers on this topic over the years but yours really was one of the better ones as you focused more on the identification throughout the year, problems associated with the plant and remediation. Once again thank you for your time. “

Sue Shears MRICS, Bradleys Surveyors

“Everyone found your presentation to be a helpful and informative. Your enthusiasm for the subject also encouraged everyone to get involved and ask questions, benefiting everyone in the room. If we have any questions in the future regarding the identification or management of Japanese Knotweed we will be sure to contact you and the Environet Team.”

Coral - Bidwells - CPD Training Seminar with Luke Walton

Guides and resources


We have robust systems in place for Environmental and Health & Safety management. Risk assessments are carried out for every aspect of our business to identify situations where harm could be caused. We have an ethos of continuous improvement to eliminate or reduce the risks with detailed working procedures, on-going training and monitoring.

All our staff have health and safety and emergency first aid training. We are also accredited by CHAS and Constructionline and are members of the Property Care Association (PCA).


Our team of experts is available between 9am and 5:30pm, Monday to Friday to answer your enquiries and advise you on the next steps

Want a survey?

Request a survey online in less than two minutes by simply uploading a photograph and providing a few brief details. A member of the team will swiftly come back to you with further information and our availability.

Need quick plant identification?

There’s no need to wait for a survey. Simply upload an image to our identification form and one of our invasive plant experts will take a look and let you know, free of charge.

Contact our team of experts today