Herbicide applied through the growing season, over several years.
Free photo ID check · Mon–Fri 8am–6pm, Sat mornings
Spraying is the usual choice for gardens. Applications are made during the growing season and repeated over three to five years until nothing regrows, then watched for a further period. It is cheaper and less disruptive than digging out, unless a sale or a build date decides the timetable.
Treatment is timed to the plant's growth rather than the calendar. Visits generally begin once the canes have a full canopy of leaves, because the herbicide travels down into the rhizome while the plant is feeding it. A second round follows later in the season, and an autumn visit may be used before dieback. In winter the stand appears dead, but the roots remain. A follow-up inspection in spring checks what has regrown. Expect several years of repeat visits, with a report each time.
Weather matters. Rain soon after application can wash product off, and strong wind risks spray drift onto plants you want to keep. Dense neighbouring vegetation can also block access to the canes. Banks near water need extra care, since only products approved for use near watercourses are suitable and some sites need permission first. This is a particular point in Northwich, where gardens and yards often back onto the Weaver, the Dane or the canal. Your surveyor should explain what is allowed in your situation.
Do not cut, strim, mow or pull the plant, even if it looks dead, since disturbing it can undo the work. Keep pets and children away from freshly treated stems for as long as the product label states. Photograph the stand each month so progress can be compared. Do not move soil from the area. Keep each treatment record and the final sign-off in a safe folder, because a buyer, lender or landlord may ask for the whole history rather than only the latest visit.
A leaf and a length of stem, through the form or by message. Free.
For a confirmed knotweed stand, we visit, measure it and record what sits nearby.
Spraying across a few seasons, or digging it out when the date matters.
A written plan for your files and your lender, plus follow-ups until regrowth stops.
Every job starts with a free photo check. If a visit is needed, you get a written quote before any work starts — no obligation, no surprises.
Northwich town centre· Hartford· Davenham· Barnton· Winnington· Greenbank· Leftwich· Castle· Wincham and Lostock Gralam· Weaverham and Rudheath
Knotweed survey We visit, confirm the plant, measure it and write up what we find. Free knotweed ID from a photo Send a picture and we say what it is. No charge. Knotweed plan for mortgages and sales The management plan lenders and buyers' solicitors ask to see. Knotweed from a neighbour A dated record of where the stand is and which way it is heading. 
Knotweed excavation Removing the stand and its rhizome in a matter of days. 
Knotweed root barrier Heavy-duty membrane set upright to keep rhizome on its own side. 
Knotweed on development land Surveys and removal for Northwich building sites. Knotweed for landlords Surveys and treatment for rented houses and flats. 