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    Blackwood, South Wales · NP12

    Giant Hogweed Removal in Blackwood

    Looking for giant hogweed control near you in Blackwood? We survey, treat and remove giant hogweed for homeowners, landlords, developers and councils across Blackwood and the surrounding South Wales 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.

    Blackwood site visits

    Surveyors covering NP12 and the wider South Wales area.

    10-year guarantee

    Insurance-backed and transferable on sale.

    £10m liability cover

    Qualified operatives and licensed waste disposal.

    Why giant hogweed is a problem in Blackwood

    On Blackwood properties, giant hogweed sap causes severe phototoxic burns and long-term light sensitivity, which makes it a genuine safety issue on footpaths, riverbanks and school boundaries. Blackwood sits in the Sirhowy valley, where former colliery land and disused mineral railway beds give Japanese knotweed an unbroken run from the tips down to the Ebbw and Rhymney corridors.

    Read more on our giant hogweed treatment guide or see the full Blackwood knotweed service.

    Blackwood coverage map

    Our surveyors cover Blackwood and the surrounding South Wales villages and hamlets. The map below shows the area we work in daily for Japanese knotweed surveys, herbicide programmes and excavation.

    The marker sits on Blackwood town centre (51.6675, -3.1656). Service area: Blackwood and surrounding South Wales parishes. View a larger map of Blackwood

    Local landmarks we work near

    • Sirhowy River
    • Blackwood Miners' Institute
    • Penallta Colliery site
    • Cwmcarn Forest

    Villages and hamlets covered

    • Pontllanfraith
    • Ystrad Mynach
    • Crosskeys
    • Cwmfelinfach
    • Abercarn
    • Risca
    • Newbridge
    • Hengoed

    Everything plotted on the Blackwood map is covered by our teams, including Pontllanfraith, Ystrad Mynach, Crosskeys, Cwmfelinfach, Abercarn, Risca, Newbridge and Hengoed, and the ground around Sirhowy River, Blackwood Miners' Institute, Penallta Colliery site and Cwmcarn Forest.

    How we treat giant hogweed in Blackwood

    Treatment method

    We use PPE-protected cut and spray, stem treatment and seed-bank monitoring over two to three seasons.

    Best timing

    Most effective spring, while rosettes are young and well before the flower heads set seed.

    Your legal position

    Also Schedule 9 listed — it is an offence to plant or cause it to grow in the wild, and duty of care applies where the public has access.

    Local coverage

    Blackwood and nearby Pontllanfraith, Ystrad Mynach, Crosskeys.

    Giant Hogweed pricing near Blackwood

    Treatment programmes from £750 for a domestic plot; riverbank and amenity schemes quoted per metre. For a firm figure, send photographs through the free online survey or request a free online quote and we will price the Blackwood works the same day.

    Giant Hogweed in Blackwood — FAQs

    Treatment programmes from £750 for a domestic plot; riverbank and amenity schemes quoted per metre. Prices in Blackwood depend on the size of the stand, access to the rear of the plot and how far the site sits from a licensed disposal facility. Send photographs for a same-day Blackwood price.

    We use PPE-protected cut and spray, stem treatment and seed-bank monitoring over two to three seasons. Every Blackwood job is set out in a written plan with visit dates, and the work is carried out by qualified operatives under £10m liability cover.

    The most effective window is spring, while rosettes are young and well before the flower heads set seed. Outside that window we can still survey, fence off and plan the Blackwood works so treatment starts the moment conditions are right.

    Also Schedule 9 listed — it is an offence to plant or cause it to grow in the wild, and duty of care applies where the public has access. We provide the written records Blackwood owners, landlords and agents need to show the problem was dealt with properly.

    We cover Blackwood (NP12) and the surrounding villages, including Pontllanfraith, Ystrad Mynach, Crosskeys, Cwmfelinfach, Abercarn, Risca, plus the wider South Wales area.

    Yes. Photo identification and an online quote are free — send images through the free online survey and we confirm the species and price the work the same day. A full on-site survey with a written report starts from £250 and is credited against the works.

    Knotweed is rarely the only problem on a Blackwood plot. The same crews treat running bamboo in Blackwood gardens, giant hogweed on South Wales watercourses and Himalayan balsam along South Wales riverbanks. If you are mid-sale, start with what mortgage lenders require for knotweed and our property survey reports.

    Species we treat in Blackwood

    Buying, selling or letting in Blackwood

    Who we work for in Blackwood

    Counties bordering South Wales

    Other weeds we treat in Blackwood

    100% Free • No Obligation

    Free Online Survey

    Not sure what's growing? Upload photos through our free online survey or call 07932 064593 and our qualified experts identify 50+ species at no cost. Need someone on site? A professional survey with a full written report starts from £250.

    £10M insurance-backed guarantee
    Same-day photo identification

    No obligation. We never share your details.