Mat Day, Director at Environet

Mat Day,
Finance and Technical Director

Having graduated with a BSc (Hons) from the University of Chester in Geography and Natural Hazard Management, I was recruited by Environet UK in 2013 to remove Japanese knotweed and other invasive plants from residential properties and commercial sites. From day one I’ve loved the challenge of the job and I’m now responsible for the Sales and Finance departments at Environet. I also spend a great deal of time working as an Expert Witness in Japanese knotweed, often handling complex misrepresentation, negligence and encroachment cases.

My weekends usually revolve around taking the family away in our campervan for long walks or bike rides in many of our National Parks or AONB.

Professional Qualifications: BSc (Hons)


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

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If you already know you have an invasive plant problem, you can request a survey online in less than two minutes by 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?

Simply upload a few images of your problem plant to our identification form and one of our invasive plant experts will take a look and let you know, free of charge what you are dealing with. We’ll also be there to help with next steps where necessary. 

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