Japanese Knotweed Ltd (JKL) and Environment Controls (part of JKL). The UK’s trusted company for providing surveys, treatment and removal services for Japanese knotweed and other invasive weeds. Environment Controls is a trading name of JKL, providing specialist control services for; Invasive Native and Non-Native Weeds (INNS), aquatic weeds, invasive species, amenity weed management, and removal of asbestos contaminated soils. We are a private limited company working throughout the UK for construction companies, developers, facilities management, housing associations, local authorities, property maintenance and private property owners. We employ colleagues across the UK to provide an efficient and responsive service that enables us to deliver over 150 excavations and 8,000 herbicide visits per year for more than 6,000 customers. We cater for project values from £500 up to £1.5M.