Japanese Knotweed Removal in Keynsham
Looking for Japanese knotweed control near you in Keynsham? We survey, treat and remove Japanese knotweed for homeowners, landlords, developers and councils across Keynsham and the surrounding Bristol & Avon villages. Photo identification and an online quote are free; a professional on-site survey with a written report starts from £250 and is credited against the works if you proceed.
Keynsham site visits
Surveyors covering BS31 and the wider Bristol & Avon area.
10-year guarantee
Insurance-backed and transferable on sale.
£10m liability cover
Qualified operatives and licensed waste disposal.
Why Japanese knotweed is a problem in Keynsham
On Keynsham properties, Japanese knotweed rhizome spreads several metres underground, exploits cracks in hard standing and drains, and can stall a mortgage offer or sale. Keynsham sits between the rivers Avon and Chew, and disturbed ground from the former Cadbury's chocolate factory site and old railway sidings has left knotweed well established along the riverbanks.
Read more on our japanese knotweed treatment guide or see the full Keynsham knotweed service.
Keynsham coverage map
Our surveyors cover Keynsham and the surrounding Bristol & Avon villages and hamlets. The map below shows the area we work in daily for Japanese knotweed surveys, herbicide programmes and excavation.
Local landmarks we work near
- River Chew
- River Avon
- Keynsham Memorial Park
- Chewton Keynsham
Villages and hamlets covered
- Saltford
- Queen Charlton
- Bitton
- Compton Dando
- Burnett
- Woollard
- Chewton Keynsham
- Willsbridge
Everything plotted on the Keynsham map is covered by our teams, including Saltford, Queen Charlton, Bitton, Compton Dando, Burnett, Woollard, Chewton Keynsham and Willsbridge, and the ground around River Chew, River Avon, Keynsham Memorial Park and Chewton Keynsham.
How we treat Japanese knotweed in Keynsham
Treatment method
We use a three to five year stem-injection and foliar herbicide programme, or hybrid and full excavation with licensed off-site disposal where timescales are tight.
Best timing
Most effective late summer to early autumn, when the plant draws herbicide down into the rhizome.
Your legal position
Listed on Schedule 9 of the Wildlife and Countryside Act 1981 — allowing it to spread to neighbouring land can bring a civil claim, and the cut material is controlled waste.
Local coverage
Keynsham and nearby Saltford, Queen Charlton, Bitton.
Japanese Knotweed pricing near Keynsham
Herbicide programmes from £1,500; hybrid excavation from £4,000; full excavation from £8,000. For a firm figure, send photographs through the free online survey or request a free online quote and we will price the Keynsham works the same day.
Japanese Knotweed in Keynsham — FAQs
Related invasive weed help for Keynsham
Knotweed is rarely the only problem on a Keynsham plot. The same crews treat running bamboo in Keynsham gardens, giant hogweed on Bristol & Avon watercourses and Himalayan balsam along Bristol & Avon riverbanks. If you are mid-sale, start with what mortgage lenders require for knotweed and our property survey reports.
Species we treat in Keynsham
- Japanese knotweed removal in Keynsham — identification, treatment and excavation
- running bamboo removal in Keynsham — rhizome excavation and root barriers
- giant hogweed removal in Keynsham — safe removal of a burn-causing species
- Himalayan balsam removal in Keynsham — riverbank and site-wide clearance
- horsetail (marestail) removal in Keynsham — long-term control programmes
- unidentified weeds removal in Keynsham — photo guide to every species we treat
Buying, selling or letting in Keynsham
- mortgage lender requirements for Keynsham property — RICS categories and the paperwork valuers ask for
- insurance claims for Keynsham property — policy exclusions and the evidence insurers want
- encroachment and legal advice for Keynsham property — nuisance claims and owner obligations
- insurance-backed guarantees for Keynsham property — 10-year cover that transfers on sale
- removal costs for Keynsham property — survey, treatment and excavation pricing
- excavation vs herbicide for Keynsham property — choosing a method for your timescale
Who we work for in Keynsham
Counties bordering Bristol & Avon
Japanese knotweed removal in Somerset
Taunton, Bath, Yeovil, Bridgwater
Japanese knotweed removal in Wiltshire
Swindon, Salisbury, Chippenham, Trowbridge
Japanese knotweed removal in Gloucestershire
Gloucester, Cheltenham, Stroud, Cirencester
Japanese knotweed removal in South Wales
Cardiff, Swansea, Newport, Bridgend