Japanese Knotweed Agency Ltd – Setting a New Standard in Invasive Plant Management in 2026
Updated: Jan 23
Alan Hoey is the Managing Director of two UK National Companies, including the Japanese Knotweed Agency, award-winning specialists in chemical-free invasive weed removal. He pioneers thermo-electric treatment for sustainable, permanent root-kill of Japanese Knotweed and other invasive plants while protecting biodiversity.
Japanese Knotweed remains one of the most disruptive and misunderstood invasive plant species affecting property, infrastructure, and land across the UK. For homeowners, developers, local authorities, and commercial landowners alike, the presence of knotweed can stall transactions, delay projects, and introduce long-term financial risk if not managed correctly.
At Japanese Knotweed Agency Ltd (JKWA), our mission has always been simple, deliver clear, defensible, and cost-effective solutions to invasive plant problems, without unnecessary chemicals, inflated costs, or vague assurances.
As we enter 2026, JKWA has significantly expanded its service offering, giving clients greater choice, faster resolution, and some of the most competitive remediation pricing in the UK.
Independent surveys you can rely on
Every successful knotweed strategy starts with accurate identification and risk assessment.
JKWA provides independent Japanese Knotweed surveys for:
Residential property, homeowners, and tenants, including sales and purchases
Development and land acquisition
Infrastructure and access routes
Planning and legal support
Our surveys are evidence-based, clearly written, and designed to stand up to scrutiny from:
Solicitors
Surveyors
Lenders
Local authorities
We do not overstate risk, and we do not underplay it either. Clients receive clear recommendations tailored to their objectives, whether that is treatment, containment, or removal.
Thermo-electric treatment: A chemical-free alternative
JKWA is the UK’s leading specialist in thermo-electric knotweed treatment, a non-chemical method that uses controlled electrical energy to destroy rhizome systems at depth.
This method is particularly valuable where:
Herbicide use is restricted or undesirable
Sites are environmentally sensitive
Long-term guarantees are required
Immediate excavation is impractical
Thermo-electric treatment forms a key part of our integrated approach and is increasingly requested by clients seeking sustainable, future-proof solutions.
Root barrier installation and containment
In situations where full removal is not required or appropriate, JKWA designs and installs root barrier systems to prevent rhizome spread and protect neighbouring land, structures, and future development.
Our barrier installations are:
Depth-specific and site-engineered
Compatible with development works
Supported by clear documentation
This approach is particularly effective for boundary protection, phased developments, and constrained urban sites.
Expanded excavation services, faster, cheaper, controlled
In 2026, JKWA formally expanded its excavation, digging, and removal services, allowing us to deliver direct off-site disposal of knotweed-contaminated soils at a lower cost than many traditional providers.
By controlling:
Labour
Plant
Supervision
Waste logistics
We remove unnecessary layers of cost, while maintaining full compliance with controlled waste regulations.
This means:
Fewer delays
No re-handling or on-site stockpiling
Transparent pricing
Extremely competitive fixed price solutions
For many clients, excavation is now quicker and more affordable than long-term treatment, particularly where development timelines matter.
One agency, multiple solutions, clear advice
What sets Japanese Knotweed Agency Ltd apart is not a single method, but the ability to choose the right method for each site. We are not tied to one solution. We are not incentivised to oversell. We are focused on outcomes, compliance, and value.
Whether you need:
A survey to support a sale as a buyer or seller
A non-chemical treatment strategy
Physical containment
Or full excavation and removal
JKWA provides clear advice and delivers what we say we will.
Expanding access through multilingual communication
As part of our continued commitment to clarity and accessibility, Japanese Knotweed Agency Ltd has expanded its media and news platform to include Chinese language content.
This development reflects the increasingly international nature of UK property ownership, investment, and development. By making key guidance, updates, and educational content available in Chinese, we aim to support overseas investors, landlords, and stakeholders who require accurate information on invasive plant risk, compliance, and remediation options within the UK market.
Clear communication is essential when dealing with regulated environmental issues such as Japanese knotweed. By broadening language access across our news and blogs section, JKWA is helping ensure that advice is understood correctly, risks are properly assessed, and decisions are made on the basis of fact rather than fear or misinformation.
This initiative forms part of our wider goal to raise industry standards, improve transparency, and ensure responsible land management is accessible to all.
Establishing a National Register for accountability and clarity
In parallel with expanding our practical services, Japanese Knotweed Agency Ltd has introduced a National Register designed to bring greater structure, transparency, and accountability to how Japanese Knotweed cases are recorded and managed. Now in its fourth year of growth, it includes 76,515 records.
The National Register provides a centralised reference point for documented knotweed activity, treatment, containment, and remediation works. Its purpose is not to stigmatise land, but to promote accurate record keeping, continuity of information, and informed decision making across property transactions, land management, and development planning.
Too often, knotweed risk is misunderstood or exaggerated due to a lack of reliable, accessible information. By establishing a formal register, JKWA is helping shift the conversation from fear-based assumptions to evidence-led assessment, supporting surveyors, solicitors, developers, and property owners alike.
This initiative reflects JKWA’s broader commitment to raising industry standards, encouraging responsible long-term land stewardship, and improving confidence in how invasive plant issues are disclosed and managed.
While the register aims only to give an indication of the number of reported sightings, we still have a long way to go and rely on surveyors, volunteers, and members of the public to report sightings to us.
Looking ahead
As awareness of invasive species grows, and as clients become more informed, the industry is moving away from fear-based pricing and towards measured, evidence-led remediation.
Japanese Knotweed Agency Ltd is proud to be part of that shift. 2026 is about clarity, control, and cost-effective action.
Did you know, in 2025
Alan Hoey & Japanese Knotweed Agency were recognised as one of the BRAINZ 500 Global Award Leaders.
Read more from Alan Hoey
Alan Hoey, Chemical-Free Invasive Weed Eradicators
Ex-military intelligence, Alan leads from the front as Managing Director of the Japanese Knotweed Agency, the UK’s Leading Authority on its number one invasive weed. An innovative industry disruptor, he was the first in the UK to adopt thermo-electric technology for chemical-free invasive weed removal and has positioned JKWA at the forefront of sustainable Japanese Knotweed eradication. But there's a lot more to Alan that the eyes can see.
