Japanese Knotweed Removal Specialists in South Wales, covering Swansea and Cardiff.

We are experienced Japanese Knotweed removal experts based in the heart of the Swansea Valley, covering Swansea, Cardiff and most of South Wales. Get in touch today for your fast, free, no obligation Japanese Knotweed survey and quote.
Enquire Today.

WE ACT FAST!

We measure ourselves using KPIs for each stage of the process and we believe we are the best!

      EXCELLENT  
   Based on 61 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Colin Fox 
 August 13, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Responded to my email query within 24 hours. James called to my property and explained clearly what needed to be done.  Totally professional and helpful without wanting to charge me for work that didn't need doing. Excellent.
  
 
      Posted on Google  
   
   owen emanuel 
 August 6, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service, highly recommend.
I had a letter from a neighbour concerned there was a canopy of knotweed on our border coming from my side. I contacted Clearsafe after work looking to book an assessment and James kindly said he’d pop over that evening! James quickly confirmed it was not knotweed, was likely a fruiting vine and sure enough found some small fruits. He kindly went with my neighbour to assess the border from their side also and confirmed there was no knotweed. He explained the differences in the stem and leaves and what to look for. Incredible service, professional and friendly. It was incredibly stressful thinking there was knotweed but James was very kind, knowledgeable and reassuring. Highly recommend.
  
 
      Posted on Google  
   
   Emily Preece 
 August 3, 2026
 
 
 Trustindex verifies that the original source of the review is Google. We are in the middle of purchasing a property and it was brought up in the survey that JKW was likely to be present. We contacted several JKW specialists in the area. Clearsafe went above and beyond. In a matter of hours they had identified the plant and offered invaluable information, advice and support to help us progress with our sale as well as providing us with excellent quotations. I will not be hesitating to use or recommend this company in the future.
  
 
      Posted on Google  
   
   stewart harrad 
 July 15, 2026
 
 
 Trustindex verifies that the original source of the review is Google. James and his team have been faultless and have supported me on every level with a knotweed issue. I would not hesitate to recommend them.
  
 
      Posted on Google  
   
   Megan Smith 
 July 9, 2026
 
 
 Trustindex verifies that the original source of the review is Google. We’re in the process of putting our house on the market and concerns were raised as to whether some weeds in the garden were knotweed. Contacted James who requested photos. He came back to me within an hour in between other jobs and was able to not only confirm it wasn’t knotweed but tell me exactly what the weeds were. Really appreciated his friendly but professional approach and quick responses. Would highly recommend.
  
 
      Posted on Google  
   
   Helen Roche 
 July 6, 2026
 
 
 Trustindex verifies that the original source of the review is Google. This company has been brilliant, I am so impressed with the service and knowledge of James.
His work is meticulous and highly organised. Highly recommend for any who is in need of Bamboo removal!
Thankyou James?
  
 
      Posted on Google  
   
   Sam Worley 
 June 14, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Needed bamboo removed at front of property. James visited quickly, provided a comprehensive quote and then carried out the removal to an excellent standard
  
 
      Posted on Google  
   
   Colin McCabe 
 May 30, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Had a bamboo patch in the garden out of control. Phoned up, sent a video of the area and within weeks it’s all been sorted.

Credit to the lads, they were on time and put a shift in even when the sun was on full beam.

Will definitely be recommending you to friends and family. Thanks again
  
 
      Posted on Google  
   
   Sarah Nalletamby 
 May 22, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Excellent service. Spoke by phone, sent photo and had immediate confirmation of no knotweed. Thanks. Would certainly recommend.
  
 
      Posted on Google  
   
   Maddox Niilo H 
 May 20, 2026
 
 
 Trustindex verifies that the original source of the review is Google. Highly recommend. The guys did a fantastic job taking down an entire wall of overgrown bamboo. They worked quickly and has a freindly demeanor.

Have you got a Knotweed problem you need fixing?
We will get to the root of your problem!

Based in the heart of the Swansea Valley, Clearsafe Knotweed work with a plethora of clients across South Wales who require our services removing invasive weed infestations.

Most commonly Japanese Knotweed, Himalayan Balsam and Bamboo but also many other invasive weeds such as Giant Hogweed, Rhododendron, Buddleia and Laurel.

We cover Swansea, Cardiff, Newport and most regions within South Wales and West Wales.

Our domestic clients are homeowners including buyers and sellers who need immediate attention to an invasive weed infestation including Japanese Knotweed infestations which endanger their house move or mortgage approval and even threatens to break a property chain.

Our construction and development invasive weed experts also have extensive experience in dealing with large commercial clients, particularly in the construction and utilities sectors, where Japanese Knotweed and other invasives threaten to slow or even halt work onsite. We offer bespoke packages in excavation and removal, onsite cell burial, Bunding and more.

We are Constructionline registered to aid in speedy accreditation.

We can provide you with:

A free Japanese Knotweed survey
A survey report and quote
A Japanese Knotweed removal and management plan
An insurance backed guarantee
A Japanese Knotweed treatment programme
Pre construction excavation and removal packages across South Wales
Pre construction cell Burial service
Onsite advice, training and materials for construction companies

Clearsafe Knotweed are full Property Care Association (PCA) members, and all our staff are fully trained to the highest industry standards. We are the company you need to call.

Removal of Knotweed and the ongoing treatment is not an easy task but Clearsafe Knotweed will always get to the root of the problem! We act fast to meet with and acquire an understanding of your circumstances.

You are in great hands!

Acting quickly when you have a Japanese Knotweed infestation is critical.

Call us to book in a free survey and we will come to assess your problem and provide a quote with options tailored for your situation.

Please read the reviews to see what our customers are saying about us.

A friendly, professional service that is tailored to you. We provide a trusted and cost-effective Japanese Knotweed removal service throughout South and West Wales.

We are here to support you and pride ourselves on the personal touch.

All of our surveys are conducted by one of our lead surveyors James and James ( Stevenson on the left, Edwards on the right ) and we are always just a phone call away throughout the treatment process.

So if you have discovered knotweed, or any other invasive weed on your property give us a call for a fast, free, no obligation survey today and we can visit your property as soon as possible.

Remember, although finding knotweed on your property whether it be your home or in a commercial or industrial setting can be problematic…

With fast acting, professional advice and treatment it need not become a major issue.

Just Call Us For Free On 0800 634 9275 And Let Us Get To The Root Of Your Problem !

Our customer reviews

Dai Legge

Contractor

James understands the construction industry because he’s been one of us; his training service is particularly effective in getting site teams to understand the risks and controls and what they actually need to do onsite. Where time and ‘thinking outside of the box’ is often a critical factor, Clearsafe have proven time and again to be valuable assets and have become our only Knotweed contractor.

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Dan Madge

Developer

Having used various Knotweed contractors in the course of my career, using Clearsafe Knotweed to produce and implement treatment plans has been an absolute blessing. They’re really flexible and knowledgeable, especially around the planning and development process. Now that they can offer insurance backed guarantees, we will only use their services more and more

Sam Hawking

Conveyancing Solicitor

During my client’s sale, the survey picked up on Japanese knotweed on the boundary of the property, this threatened the sale. We contacted Clearsafe Knotweed and they came out to survey within 24 hours. Happy with the quote and service my client went ahead with the management plan. That was two years ago and there has been no come-back. I would recommend Clearsafe without hesitation.

Louise Williams

House Seller

The Clearsafe boys were reassuringly positive from the start and put us at ease when we were worried about the effect of the infestation on our sale. After the initial survey, they produced a clear report in no time and it was accepted by our mortgage company. We didn’t hesitate to engage Clearsafe to tackle our Japanese Knotweed, a decision well-made we would say. Progress has been amazing and the willingness of the lads to take time to engage with our neighbours to put them at ease was an extra bonus.

Gareth & Kelly Morgan

House Buyer

Clearsafe came out quickly and produced a really detailed report overnight which allowed me to get my mortgage at first, then re-plan my garden renovation to avoid spreading the Knotweed, we definitely dodged a bullet there! They have executed the management plan to the letter and there’s been no disruption to our lives or our DIY renovation.

Kim

We knew we didn’t have any Knotweed but our lender forced us to pay for a survey, Clearsafe came out quickly and quoted a fair price, then quickly produced a report that was accepted immediately by the mortgage lender.

Chris Thomas

Estate Agent

We instructed Clearsafe to survey a client’s property on behalf of a purchaser who needed to obtain a mortgage with Japanese Knotweed growing on neighbouring land. Clearsafe took the time to visit the same day and provided a report within 24 hours. The purchaser was extremely satisfied with Clearsafe’s efficient manner and the costs were very competitive. As an estate agent, this service is invaluable and we would not hesitate to recommend Clearsafe- Keep up the good work!

Jessica

As Estate Agents we are looking to get work done efficiently & quickly. James & Clearsafe company embody this. One quick phone call & he went there the same day for a quote. Spoke to the vendors directly & the work was done just as quick. We are extremely impressed & plan to use this company again. It was very easy from start to finish; the vendors were also just as impressed.

View All Reviews

Send us a Message

Japanese Knotweed Removal Specialists in South Wales, covering Swansea and Cardiff.

We are experienced Japanese Knotweed removal experts based in the heart of the Swansea Valley, covering Swansea, Cardiff and most of South Wales. Get in touch today for your fast, free, no obligation Japanese Knotweed survey and quote.
Enquire Today.

WE ACT FAST!

Have you got a Knotweed problem you need fixing?
We will get to the root of your problem!

Areas we cover…

Our customer reviews

Contact

About

Services

Advice

Send us a Message

Japanese Knotweed Removal Specialists in South Wales, covering Swansea and Cardiff.

We are experienced Japanese Knotweed removal experts based in the heart of the Swansea Valley, covering Swansea, Cardiff and most of South Wales. Get in touch today for your fast, free, no obligation Japanese Knotweed survey and quote. Enquire Today.

WE ACT FAST!

Call us now on 0800 634 9275

Have you got a Knotweed problem you need fixing? We will get to the root of your problem!

Areas we cover…

Our customer reviews

Contact

About

Services

Advice

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We are experienced Japanese Knotweed removal experts based in the heart of the Swansea Valley, covering Swansea, Cardiff and most of South Wales. Get in touch today for your fast, free, no obligation Japanese Knotweed survey and quote.
Enquire Today.

Have you got a Knotweed problem you need fixing?
We will get to the root of your problem!