Contact us on 0330 6781077 or

Contact TCM Knotweed Hertfordshire

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Contact TCM Knotweed Hertfordshire

Contact our TCM knotweed experts in Hertfordshire by completing this contact form, or you can call or email us directly using the information on this page.

Are you concerned that you may have Japanese knotweed on your land or property?  Would you like an expert opinion? Simply upload an image via this contact form and one of the TCM team will be in touch as soon as possible to discuss your concerns.

Start your journey to being Japanese knotweed free with TCM Ltd.

TCM Limited

7 Peerglow Centre,
Marsh Lane,

0330 6781077

Connect with Us

Opening Times

  • Monday: 8:30am – 5pm
  • Tuesday: 8:30am – 5pm
  • Wednesday: 8:30am – 5pm
  • Thursday: 8:30am – 5pm
  • Friday: 8:30am – 5pm
  • Saturday: Closed
  • Sunday: Closed
Howard Downer


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 about the latest developments regarding Japanese knotweed and the implications of infestation.

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