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LIVE KNOTWEED JOBS IN CARDIFF
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SUCCESSFUL KNOTWEED REMOVAL PROJECTS IN CARDIFF
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SUCCESSFUL PROPERTY SALES AFTER TREATMENT
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WALES BASED KNOTWEED STAFF
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JAPANESE KNOTWEED REMOVAL CARDIFF

You may be thinking – why would I use a Japanese Knotweed company in the Midlands, when it’s Japanese Knotweed in Cardiff? As one of the leading Welsh Japanese Knotweed Companies, we have dedicated surveyors that live and represent our business in Cardiff, Wales. We’re ideal for quick, economical Japanese knotweed removal, control and treatment in and around the Cardiff and South Wales area.

As Japanese Knotweed specialists, we’re a member of the PCA (Property Care Association), a government approved trade body for “the damp, waterproofing, wood preservation and invasive weeds industries”. Any member of the PCA may be relied on to deliver the best treatment and control methods for Japanese knotweed removal.

We have used our Japanese knotweed removal capabilities to complete a number of large and complex eradications in and around Cardiff and South Wales. For Japanese knotweed removal to be successful; experienced identification, surveying, a treatment plan and control must take place. We can help with your Japanese knotweed problem. 

Reality About Japanese knotweed in South Wales

Unfortunately, Japanese Knotweed creates many problems for house owners and commercial properties. If you’re a home owner, a significant concern is that mortgage providers generally won’t lend against a property that has an infestation. This impacts both buyers and sellers (find out more by reading our buyers and sellers guide to Japanese Knotweed) and for those trying to re-mortgage.

If you’re a commercial land or property owner and Japanese Knotweed is present, your project may end up being delayed until or whilst your infestation is being dealt with correctly and legally.

Troubles Japanese Knotweed Can Cause

  • Japanese Knotweed can grow through tarmac and concrete, which poses a threat to the structure of your building or property.
  • Mortgage lenders often refuse to lend against a building where Japanese Knotweed is present.
  • Obstructs both visibility and access to paths, highways and other infrastructure. Producing a massive annoyance for commercial properties in particular.
  • Japanese Knotweed left untreated can become very expensive to manage. The quicker you choose our Japanese knotweed removal Cardiff service (available throughout South Wales) the cheaper it will be.


For customers in Cardiff (and South Wales) with Japanese Knotweed, our Japanese knotweed specialists should be your very first call. We’ll always ensure that the knotweed is removed in its entirety and our warranty guarantees (insurance backed guarantee available) against re-infection and knotweed colonisation. We’ll also be sure that it’s safely and legally transferred to a place where it may be disposed of, stopping any additional spread.

Image taken by: Steve Collis from Melbourne, Australia / CC BY

Troubles Japanese Knotweed in Cardiff Can Cause

  • Japanese Knotweed is an invasive and destructive plant that can grow through concrete and tarmac, posing a danger to the construction of your building or property.
  • To protect their investment, many lenders and banks won’t offer a mortgage against properties that are infested with Japanese Knotweed, without a management plan in place.
  • Knotweed can quickly cover an area with stems and leaves that block visibility and access to paths, highways and other infrastructure.
  • Japanese knotweed is a very serious problem which could cost you an absolute fortune if you don’t do something about it.
  • Employ our Japanese Knotweed Removal experts and our insurance backed guarantees.

GET IN TOUCH

Are your pictures on a different device? Don’t have pictures available at the moment? No problem! Sending pictures to us is EASY at ANYTIME. You can contact us via the following:

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FREE IDENTIFICATION

Fill in the form below, attach your pictures and we’ll let you know if the plant in your picture is Japanese Knotweed.

Call us now to begin the treatment and control of your infestation in South Wales

Call us on: 0121 725 6348 or 0800 689 4146 for an on the spot estimate

FROM THE POINT OF INITIAL CONTACT, KNOTWEED SERVICES WILL GUIDE YOU THROUGH THE PROCESS.

RESIDENTIAL JAPANESE KNOTWEED REMOVAL CARDIFF.

WHAT YOU NEED TO KNOW ABOUT JAPANESE KNOTWEED REMOVAL CARDIFF

As Japanese Knotweed in Cardiff vary considerably from property to property, it’s not surprising that a treatment plan and control will too. It may be necessary to have one method of Japanese Knotweed Removal, treatment and control or the combination of different knotweed removal in Cardiff methods.

As this is nature we are dealing with, our Japanese Knotweed specialists are trained to factor in all considerations in order to achieve optimal results and removal. Decisions with regards to the methods of Japanese Knotweed treatment chosen will ultimately be decided by the ongoing assessment of site-specific factors/variables. An Insurance backed guarantee is available.

— JAPANESE KNOTWEED REMOVAL OPTIONS AVAILABLE IN CARDIFF AND SOUTH WALES

Knotweed spraying

FOLIAR SPRAYING *

Most common treatment. The spraying of powerful chemicals with a knapsack. We ensure that other plants aren’t damaged. The most effective time for foliar spraying to Japanese Knotweed is in Spring

Foliar leaf wiping

FOLIAR LEAF WIPING *

With this Japanese knotweed treatment we employ a device to ‘physically wipe’ our chemicals onto the Japanese Knotweed leaves. This application is so precise that we can often use a higher concentration of chemical.

Japanese Knotweed Stem injection

STEM INJECTION

We apply a controlled amount of herbicide directly into the invasive weed. Due to being injected directly into the Japanese Knotweed, this is the most crafty method of removal. It isn’t dependent on the weather.

Japanese Knotweed Biomass Reduction

BIOMASS REDUCTION

Biomass is a form of excavation and removal but instead of extracting all of the soil impacted by Japanese Knotweed, we only remove the infested parts of the soil. It’s an excellent Japanese Knotweed control method that allows the reuse of the soil. Reducing the use of landfill.

Japanese Knotweed Crown Removal

CROWN REMOVAL

Crown and stems are capable of regenerating and even small fragments of cut crown or stem are capable of regenerating and becoming a new invasive weed – removing these from the equation is a great strategy.

— TREATMENT OPTIONS AVAILABLE IN CARDIFF AND SOUTH WALES

SOIL SCREENING

A tried and tested methodology used on hundreds of sites across the UK.

Using the screening method, the Japanese knotweed rhizome material is separated from the soil material. The Japanese knotweed material is then either transported to licensed landfill at a much lower disposal rate or incinerated on site using a D6 exemption from the Environment Agency or Natural Resources Wales.

The cleaned soils can then be reused in locations away from any construction, normally in soft landscaping areas.

This can reduce the landfill & backfill requirement costs significantly and can also help to reduce the carbon footprint on site due to reduced vehicle movements to landfill.

BIOSECURITY SUPERVISION

Knotweed Services can provide a biosecurity operative to supervise any excavations and movement of soils containing Japanese knotweed on site. 

As part of these measures, we can provide a biosecurity boot wash and machine-washing area installed in an area at the entrance to the site.
We will provide all toolbox talks for the main contractor on site, which will be signed by all contractors involved in the operation on site.

We can provide temporary geotextile barriers if required in areas to maintain the biosecurity on site.

Once the works have been completed, we will provide the client with a full biosecurity report.

This method can be used in conjunction with other treatment methods on site.

Commercial Japanese Knotweed Excavation

EXCAVATION AND DISPOSAL

This treatment method is ideal where time constraints are present and there’s no other option other than to remove both the Japanese Knotweed and contaminated soil to a registered landfill.

By removing all traces of the infestation quickly, this offers a rapid solution to your problem and allows your commercial project to begin groundwork’s almost straight away. When time is of the essence, there is no quicker Japanese Knotweed removal/treatment method.

Any waste taken off-site will be done so with a licensed waste carrier to a suitably authorised landfill site.

Japanese Knotweed Cell Burial

CELL BURIAL

Cell burial comprises of moving Knotweed contaminated soil from one location on site, burying it in an excavated pit which is lined with a root barrier membrane, in a different position on the site.

The burial requirements for Japanese Knotweed are as follows:

  • The Environment Agency recommends that the top of the burial cell should be a minimum of 2 metres below ground level.
  • The overall depth of the burial pit should be in excess of 5 metres deep. All root barrier seams are welded together forming an encapsulated cell from which the Japanese Knotweed cannot escape. Clean soil is then used to backfill on top of the cell.
  • To prevent accidental disturbance of the burial site, it is recorded on all site plans and future land owners should be made aware of the location.
Knotweed Bunding photograph

STOCKPILE & TREAT 

Bunding is the method of relocating contaminated Japanese Knotweed soil to a different area of the site being treated. A bund is a shallow area of the contaminated soil, typically 0.5m deep.

The bund can either be raised, on top of the ground, or placed within an excavation to make the surface flush with the surrounding area.

The purpose of the bund is to move the Japanese Knotweed to an area of the site that is not used. This ‘buys time’ for treatment that would not be possible where the Japanese Knotweed was originally located.

HERBICIDE APPLICATION

At Knotweed Services we can provide the client with bespoke treatment plans depending on the locations of the Japanese knotweed. 

These plans can work in conjunction with other methods of treatment where access is limited to pedestrian movements i.e., embankments or existing pathways within a site.

This will normally consist of up to 3 visits per annum to apply herbicide by either foliar spray technique or stem injection during the growing season over a period of 3 years, with a monitoring period of 2 years thereafter.

We would select the appropriate herbicides depending on the surrounding foliage or environmental constraints.

After each visit a full treatment record would be provided with photos showing the progress of the works and then an annual report.

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