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Japanese Knotweed Removal in Ireland & UK

PWS provides expert Japanese knotweed removal across the Island of Ireland & Uk using safe, compliant treatment methods to eliminate infestations and prevent regrowth.
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Why Japanese Knotweed Is a Problem
Japanese Knotweed and the Law in Northern Ireland
Japanese knotweed is hard to control once it takes hold. Here is why it needs expert treatment:
It spreads through underground roots (rhizomes), and a new plant can grow from a tiny piece of stem, crown, or root.
It can damage buildings, walls, drains, and hard surfaces where a weak point already exists.
It can cause problems with mortgages and property sales.
Cutting or strimming it makes it worse, because fragments can grow into new plants.
The rules in Northern Ireland are different from the rest of the UK, so it is important to deal with knotweed the right way.

Japanese knotweed is listed under Schedule 9 of the Wildlife (Northern Ireland) Order 1985 (as amended by the Wildlife and Natural Environment Act (Northern Ireland) 2011). Under Article 15, it is an offence to plant or allow it to grow in the wild.

Once it is dug up or removed, knotweed becomes controlled waste under the Waste and Contaminated Land (Northern Ireland) Order 1997. It must be carried by a licensed waste carrier and taken to a licensed site.
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How We Can Help

Site Survey and Identification

We survey your site, confirm whether it is Japanese knotweed, and map how far it has spread so you know exactly what you are dealing with.

Treatment and Removal Plans

Depending on the site, we use herbicide treatment programmes, excavation and removal, or a mix of both. We pick the method that fits your timeline and budget.

Safe, Licensed Disposal

We handle knotweed as controlled waste from start to finish, using licensed carriers and sites, so you stay on the right side of the rules.

Monitoring and Follow-Up

After treatment, we monitor the site and check for regrowth so the problem does not come back.

Scope of Our Work Include:

Identifying and mapping Japanese Knotweed on your land.
Protecting buildings, walls, and drains from root damage.
Managing knotweed safely to support property sales and mortgages.
Clearing knotweed before groundworks begin.
Handling excavated material as controlled waste.
Keeping projects on schedule and compliant with regulations.

What Makes Us Different

Practical Approach

We match the treatment to the site, using herbicide programmes, excavation, or both, and we handle the waste correctly so the plant does not come back.

Industry Knowledge

Over 35 years of experience in waste and environmental work, including the rules that apply to knotweed in Northern Ireland.

Cost-effective Solutions

We pick the removal method that fits your timeline and budget, so you only pay for what your site needs.

FAQs About Japanese Knotweed Removal

Having it on your land is not an offence. But it is an offence to plant it or let it grow into the wild, and once removed it must be handled as controlled waste.

It is not recommended. The wrong method can spread it further, and there are legal rules for how it must be disposed of. Professional treatment is safer and keeps you compliant.

It depends on the method. Herbicide programmes can run across more than one growing season, while excavation is faster but needs licensed disposal. We give you a clear plan after the survey.

It can. Lenders often ask about knotweed, so a clear treatment and management plan helps protect the value of the property.

Remove Japanese Knotweed for Good

Get a clear, fully compliant treatment plan that removes Japanese knotweed from your site across Belfast, Lisburn and Northern Ireland, and stops it coming back.
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