JAPANESE KNOTWEED REMOVAL
Over the years we have had the pleasure of working on numerous commercial and residential projects, each time providing a high quality, thorough and attentive approach to Japanese knotweed removal. From excavation, vegetation management, treatments and screening, we have you covered.
The experience and knowledge we have developed throughout the years has enabled us to become renowned within the industry as one of the leaders. We pride ourselves on the honest and reliable services we provide, tailoring each specifically to the individual needs and requirements of all our clients. Regardless of the size of your project, you will still receive the same high level of service. Below you can view the case studies of previous projects we have worked on.
Working for one of the UK’s largest Environmental Consultants we carried out a large vegetation clearance operation where a 5 m wide path had to be created through blackthorn for a pubic footpath.
Site was a conservation area
Our specialist forestry mulcher created a walkway efficiently and left a graded finish ready to be used by the Public.
Stock fencing was installed along the river bank – over 200 meters
As part of a 5 year contract for 1 of the 10 largest Housing Associations in the UK to treat all their properties that are affected with JKW.
The site was a former council depot where the JKW had been treated for a year. This meant that the surface visible growth was not accurate and trail digs had to be carried out to determine the spread and depth of the JKW Rhizomes.
Other challenges were determining where the services were located and carrying out the works in a strict time scale not to affect construction and therefore costs.
Through carrying out the detailed management plan and trial digs we were able to save our client over £100,000 from other quotes they had received. We completed the excavation and removal works within a 5 day period and ensured no delays were encountered to the construction programme.
A very tricky site in NW London with a construction of a residential new build with extensive basement. The site had access and space issues along with a costly and difficult boundary wall issue.
We provided a JKW management plan along with specialist watching brief supervising to remove the JKW from site and line foundations with a JKW membrane.
The timescale of works was carried out at different stages within the build and we were on site with very short notice.
To supervise as a watching brief for the excavation of Japanese Knotweed contaminated materials and providing the controlled waste removal. Works were followed on with a 3 year treatment plan with a guarantee.
This project was very challenging due to the ‘party wall agreement’ and the fact the JKW had grown under and through the boundary wall but the wall could not be undermined. To add to the complexity next to the wall was the gas mains that had to be identified and had dug around. A drop in levels also had to be created so shuttering was installed to make the site safe. Other challenges were access and parking issues which forced us to suspend parking bays, stockpile material and plan quick removal by grab lorries.
We were asked to supervise the main contractor as a watching brief during the excavation of the area affected by Japanese Knotweed in the front garden of the property. We were also required to dispose of the materials at a licenced landfill. On arrival to site, trial digs had been commenced by the main contractor and contaminated soil had been stock piled within the site. Evidence of Japanese Knotweed Rhizomes were discovered and further investigation uncovered evidence of rhizomes growing into the boundary wall between the subject property and the property directly next door. All trial digs to the rear of the property showed no evidence of Japanese Knotweed being present. 30 tonnes of controlled waste were removed using a registered and licenced waste carrier to suitable and licenced landfill. A 3 year treatment plan to the neighbouring and subject property were also put in place which include a two-year monitoring programme in-line with the PCA guidelines is now in place.