Take a look at the table below to answer your question: ‘How much does it cost to treat Japanese Knotweed?’

Size of infestationSmall area (<20m2)Medium area (20m2 - 50m2)Large area (50m2 - 100m2)
Herbicide treatments over 4 years£1,000 - £2,000£2,000 - £3,000£3,000 - £5000
Reduced dig and root barriers with Herbicide treatments£1,000 - £3000£4,000 - £7,000£10,000 - £30,000
Pick and sort / screening£1,000 - £4,000£3,000 - £7,000£10,000 - £30,000
Onsite relocation and herbicide (treatment bund / lay down area)£3,000 - £8,000£4,000 - £10,000£10,000 - £20,000
Burial on site£4,000 - £12,000£7,000 - £18,000£15,500 - £30,000
Full excavation and disposal (dig and dump)£3,000 - £12,000£6,000 - £30,000£30,000 - £70,000

*The costs outlined above are for estimate purposes only. There are many other variables such as location of your infestation or its proximity to both your home or water that can have an effect on price. 

Call us now for a more accurate estimate to remove your infestation

Call us on: 0121 720 0695 or 0800 689 4146 for an on the spot estimate

Have you fallen in love with your dream home or cottage? Had the property surveyed and been informed there is Japanese knotweed on the land?

Have you been filled with dread reading about how Japanese knotweed can stop you getting a mortgage or selling your property? How it’s impossible to eradicate and how spreading this invasive weed is quick and easy? It’s true that Japanese Knotweed can be extremely difficult to control and remove. It’s also true that your Japanese Knotweed removal cost can be expensive.

However, we NEVER charge you for treatments you don’t need and we have a 100% success record in the control and treatment of infestations. Knotweed Services, can help you sell or purchase a property that has Knotweed present. We have helped thousands of customers throughout the UK and we can help you too.

The first thing to do is to confirm whether it is Japanese Knotweed. If you take a picture of the suspected weed and send it to us, we will identify whether or not it is Japanese Knotweed. This is a completely free and quick service – click here to start the process.

If you already know that you have Japanese Knotweed, call us on: 0121 720 0695 or 0800 689 4146, we can then give you an estimated cost immediately.


We are professionals and we take our reputation seriously. Our methods work and we really can control and solve your Japanese Knotweed problem.

We deal with each infestation individually and we often offer our customers a range of suitable treatment options to choose from, these will have a range and time frames associated. Our surveys are detailed and we take every factor into account when deciding on a treatment plan.

  1. Each case is different and therefore different approaches are required for each treatment method. Each treatment method will have its own associated Japanese knotweed removal costs. There is no size fits all. Each management plan is tailored to our clients specific needs.
  2. We will keep your Japanese Knotweed costs as low as possible because you only pay for what you need and on occasion, we may present multiple treatment options. Giving you full control of the process from the very beginning.
Great value for money Japanese Knotweed control methods illustration

Not all Knotweed Companies are created equal

The cost of removing Japanese Knotweed from your property shouldn’t be the only thing you take into consideration when selecting a Japanese Knotweed company to assist you. Choosing the correct company will help you to buy and/or sell your property quicker and easier. When choosing a Japanese Knotweed company you should also consider the warranty they provide, the reputation of the company and of-course the treatment costs involved.

The benefits of choosing Knotweed Services

Knotweed warranty icon

Insurance Backed Guarantee

As part of our commitment to client peace of mind we are able to offer an insurance backed warranty on all sites.

This is aimed specifically at covering any costs that could be incurred should re-growth occur within a 10 year period.

Warranty includes quarterly inspection during the first twelve months after completion, followed by an annual site visit and report. This level of warranty follows in-depth research by our insurers as to our methods and our results to date.

5 Star Rating

Don’t just take our word for it – check out our 5 star ratings from real customers! We are members of both checkatrade and Trust Pilot. We also have active social media accounts with lots of interaction and reviews from our customers.

Knotweed Services have worked extremely hard over the last decade to truly transform our Japanese knotweed treatments and service experience for all of our customers. Without doubt, Knotweed Services are delivering the best standards, control methods and customer service. Give us a call on: 0121 720 0695 or 0800 689 4146 to discuss your options.

value for money removal

Value For Money

We specialise in both the domestic and commercial removal of Japanese Knotweed. We guarantee removal and will ensure you avoid legal action from future occupants and neighbouring properties.

We regularly price check our services against other well known Japanese Knotweed Companies and can confidently state that we provide the best value money service available, not to mention:

  • Free Identification
  • Free Surveys
  • 5 Star customer care and support
Image of Knotweed Services van
Image of Japanese knotweed growing


Perhaps a dead giveaway is that Japanese knotweed has its origins in Japan. The plant was originally introduced into Britain during the 19th century as an ornamental plant due to its pretty appearance.

Japanese Knotweed grows freely in Japan and Japan doesn’t suffer from the same affects that we do here in Great Britain. This is mainly due to the eco system there, where they have native bugs called the Aphalara Itadori that eat and control the growth of Japanese knotweed. In the UK, the Aphalara Itadori isn’t native and therefore we don’t have any form of natural control to stem or stop the growth of Japanese Knotweed.

Japanese Knotweed possesses a risk due to its highly invasive nature and its incredibly fast rate of growth. It grows through almost all structures including concrete. Once the shoots or stem has penetrated the concrete, its rate of growth then increases whilst it works its way further into the structure eventually forcing it apart often causing severe damage.


Japanese Knotweed is also legally problematic.

Under the Wildlife and Countryside Act 1981 it is an offence to plant or cause Knotweed to spread (so if you have Japanese Knotweed on your land and it spreads to a neighbour etc you can be held liable) and all waste such as any contaminated soil or cutting containing Japanese Knotweed falls under the control of part II of the environmental protection Act 1990.

Therefore by LAW, your waste must be properly disposed of with full compliance of the law because disposing of Japanese Knotweed incorrectly is actually an offense that can lead to prosecution.

This means that all waste containing Japanese Knotweed must be taken to a licensed premises where it will be properly disposed of. This is why many people opt to use our cost effective Japanese Knotweed removal service as all of these factors are included within our Japanese knotweed removal cost.

Japanese Knotweed is also considered problematic due to the legislation surrounding it. It is an offense to plant or cause Knotweed to spread in the wild and furthermore all waste (soil/cuttings) containing Japanese knotweed comes under the control of Part II of the Environmental Protection Act 1990 and must be properly disposed off as it is actually classed as controlled waste.

We can help. We keep Japanese knotweed removal costs lower than any other Japanese knotweed removal company. We will eradicate your Japanese Knotweed problem.

Want an instant Japanese knotweed removal cost estimate?

Call us on: 0121 720 0695 or 0800 689 4146 for an on the spot estimate


Japanese Knotweed grows fast and spreads easily and quickly. Once growth or an infestation has been discovered, it’s the responsibility of the owner of the land/property to contain it and stop it from spreading.

Damage is caused when it is left untouched and unharmed. It will continue to spread and grow, potentially costing home owners, landlords and land owners thousands of pounds.

When we begin our control and treatment services, we will have conducted an in-depth survey of the area. Within that survey we will list all the treatment options available and their associated removal costs.

To reduce the risk of it returning, we may even suggest a combination of treatment methods. We have a 100% success rate.

Some people have opted to tackle the weed on their own, however given the complicated nature of Knotweed, to completely control and eradicate, the specialist services of a professional are required. t will save you money, time and headache!

Tackling the weed yourself may also hinder you from selling your property. Even if you manage to sell your property and the weed returns when a future occupant has moved in, legally – you could be legally responsible.


The cost of each treatment is different and lots of factors are taken into account, such as:

  • The size of the area
  • Estimated time to complete treatment
  • Is your infestation close to water or your house
  • Has the infestation spread

We have a table at the very top of the page that breaks down the estimated costs you may face. Please call us on: 0121 720 0695 or 0800 689 4146 for a more accurate, on-the-spot estimation.

Unlike other Knotweed companies, we have sophisticated, bespoke software that can give you an estimation within 20 minutes.

As discussed previously, we are confident that our costs are the best value for money anywhere in the UK and our reputation is second to none.

Want an instant cost estimate to eradicate your Knotweed problem?

Call us on: 0121 720 0695 or 0800 689 4146 for an immediate estimate

What Our Customers Are Saying

  • Lorraine and the team really get to understand the challenges that you are having a create a bespoke plan to best resolve. Friendly team and really pr... Read More
  • Great Company and excellent service. Really put my mind at ease when purchasing our house. Thanks Again Knotweed Services
  • Very professional company and really helped me overcome my Japanese knotweed problem. Lorraine was very keen to make sure I was happy every step of th... Read More

We use cookies to give you the best online experience. We do not pass over any personal information to 3rd parties via our cookies. If you do not accept cookies, our website may not display or function correctly.

Privacy Settings saved!
Privacy Settings

When you visit any web site, it may store or retrieve information on your browser, mostly in the form of cookies. Control your personal Cookie Services here.

These cookies are necessary for the website to function and cannot be switched off in our systems.

In order to use this website we use the following technically required cookies
  • wordpress_test_cookie
  • fc_sb_1

Decline all Services
Accept all Services