Case Study on

Homeowner – North Wales [Residential]



The property was purchased a little less than 2 months before the client contacted us after moving in and realising the appearance of Japanese Knotweed in the rear garden. This is a small 3-bedroom stone built terraced property with a small enclosed rear yard with a raised section and lots of slate.

The homeowner had purchased as a cash buyer and the presence of Japanese Knotweed was not disclosed by the seller, and there seemed little chance of redress against the seller for non-disclosure on the TA6 form.

The new homeowner wanted a non-chemical treatment as she planned to spend a lot of time in the garden.

Invasive weed present: Japanese Knotweed


Thermo-electric eradication program


On thermo-electric delivery 1

Follow up

The property was attended and thermo-electric treatment applied to all the Japanese Knotweed that was visible. Slate stones were also lifted to identify any rhizomes that could be seen between the growth, and further thermo-electric applied to all rhizomes that could be identified.

Photos after Thermo-Electric Treatment

The first treatment was carried out July 2023 & regrowth was reported by the homeowner on 1/09/23 as shown in the image below.

Operatives attended the site again on 13/09/23

The photos below show the regrowth

After Thermo-Electric Treatment

There was no further regrowth in 2023


Homeowner advised that she was having the small stone outhouses removed to make the garden a bit bigger, and to hold an attendance in 2024 until the works had been finished and the area cleared.

Homeowner advised there are 2 very small stems of regrowth, stunted growth which has not gained any size at all, and booked for attendance July 2024.