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Japanese knotweed Autumn leaves
  • Jan142019

    Would you be able to identify Japanese knotweed in early Spring?

    Before the new growth pushes up through the soil the canes in early Spring really do look like a rather…

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    TCM Knotweed Ltd
  • Dec132018
    Japanese knotweed

    Landlord fined £18,000 for allowing Japanese knotweed to grow unchecked

    The headline in the Bristol Post on the 7th December 2018 must surely have put the fear of huge fines…

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    TCM Knotweed Ltd
  • Nov122018
    Japanese knotweed warning

    New Address

    We have moved! Still in Suffolk, and working across the UK, our new address is: Unit 3 Gable End Courtyard…

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    TCM Knotweed Ltd
  • Nov062018

    TCM proud to have been certified as a Constructionline Gold Member

    TCM continues to supply unrivalled service levels: “Constructionline provides a rigorous checking process, which ensures that our suppliers are qualified,…

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    TCM Knotweed Ltd
  • Jul262018
    Strimming Japanese kotweed

    Japanese knotweed – mowing or strimming – sensible? No!

    Strimming Japanese knotweed – sensible? No! As much as I understand the worry and frustration at finding Japanese knotweed on…

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    TCM Knotweed Ltd
  • Jun282018
    Japanese knotweed London

    Commercial Japanese Knotweed Removal

    TCM Ltd provides solutions for both Residential and Commerical Japanese knotweed removal. Commercial Japanese Knotweed removal –  A Brownfield site…

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    TCM Knotweed Ltd
  • Apr202018

    What to do if neighbour has Japanese knotweed


    What to do if neighbour has Japanese knotweed Towards the end of 2017, a homeowner took his neighbour in Cornwall…

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    TCM Knotweed Ltd
Howard Downer, MD of TCM Ltd


Howard Downer, AKA Dr. Knotweed, has over 20 years of experience as an Environmental Consultant and is regarded by his peers as one of the most knowledgeable people in the Japanese knotweed industry.

Follow Dr. Knotweed to hear of about the latest developments regarding Japanese knotweed and the implications of infestation.

Latest Residential Case Studies

  • Japanese knotweed growing in front garden of a London home

    Japanese knotweed – London

    Japanese knotweed was growing in the front garden of a North London property. The homeowner wanted to sell in 2017…

  • Image of a Japanese knotweed survey being undertaken

    Homeowner Wishing To Sell

    Has your mortgage been refused? TCM helped a homeowner who was wishing to sell his property but had Japanese knotweed…

Latest Commercial Case Studies

  • Japanese knotweed Soil Screening Project in Dorset

    Soil Screening Project, Dorset

    TCM soil screening project – eradicating Japanese knotweed at the site of commercial home building project Devon, UK.

  • Japanese knotweed soil screening on commercial site in Wales

    Brownfield Site, Glasgow

    Commercial soil screening project. TCM were commissioned by a Commercial company wishing to develop a brownfield site in Glasgow, Scotland.…

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