Complete Weed Control
Based in Newton Aycliffe, County Durham · Covers Over 50 UK and Ireland offices Accreditation stated by provider: BASIS, NPTC, ISO 9001, ISO 14001Own websiteUK-wide
03 · Existing buildings & works · Condition
Japanese knotweed survey in Yorkshire and the Humber
12 providers offering japanese knotweed survey in or across Yorkshire and the Humber, including national firms. A specialist surveyor, often accredited by the Property Care Association’s Invasive Weed Control Group.
Who needs oneBuyers and sellers of a property with suspected knotweed, or anyone building near it
Who can do itA specialist surveyor, often accredited by the Property Care Association’s Invasive Weed Control Group
WhenAs soon as it’s suspected, since treatment plans run over several growing seasons
12 invasive plant specialists for Yorkshire and the Humber
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Based in or covering Yorkshire and the Humber (5)
Environet UK
Based in Send, Woking, Surrey · Covers England and Wales Accreditation stated by provider: Property Care Association, CHAS, ConstructionlineOwn website
Invasive Weed Management Ltd
Based in Leeds, West Yorkshire · Covers Nationwide, with local teams including Birmingham, Bristol, Cardiff, London, Manchester, Newcastle and Leeds Accreditation stated by provider: PCA member, SafeContractor approved, Constructionline, CSCS, BASIS, NPTC qualified workforceOwn websiteUK-wide
Japanese Knotweed Plus
Based in Oldham, Greater Manchester · Covers Greater Manchester, Merseyside, Lancashire, Cheshire, West Yorkshire and the West Midlands Accreditation stated by provider: PCA certified surveyor, City & Guilds PA1/PA6Own website
South Yorkshire Knotweed Control Ltd
Based in Sheffield · Covers Yorkshire, North Derbyshire and Lincolnshire; other areas on request Accreditation stated by provider: PCA member (Invasive Weed Control Group), TrustMark registeredOwn website
National providers (check they cover your area) (7)
Invasive Vegetation Management & Treatment Ltd (IVM)
Based in Water Orton, Birmingham · Covers Midlands and nationwide; offices in Sedgley, Cambridge and Witney Accreditation stated by provider: PCA registered contractor, CSJK surveyors, CHAS, Constructionline, TrustMarkOwn websiteUK-wide
Japanese Knotweed Ltd
Based in Romsey, Hampshire · Covers UK-wide, with staff across the UK Accreditation stated by provider: PCA Invasive Weed Control Group member, SafeContractor, CHAS, RISQS, SMAS WorksafeOwn websiteUK-wide
Japanese Knotweed Solutions Limited (JKSL)
Based in Bury, Greater Manchester · Covers North West base; works across the UK Accreditation stated by provider: PCA member, INNSA member, Amenity Standard, BASIS register, ISO 9001, ISO 14001Own websiteUK-wide
Knotweed Services (UK) Ltd
Based in Glasgow (Scottish HQ); Bromsgrove head office · Covers Glasgow, Edinburgh and central Scotland; also England Accreditation stated by provider: PCA approved contractorOwn websiteUK-wide
Phlorum
Based in Brighton, East Sussex · Covers National team; air quality work focused on southern England Accreditation stated by provider: PCA accredited, ISO 9001, ISO 14001, ISO 45001, Expert Witness Institute member, Trustmark registered, River Restoration Centre memberOwn websiteUK-wide
PLR Ltd
Based in Sicklesmere, Suffolk · Covers Whole of the UK and Channel Islands; offices in London, Birmingham, Warrington and East Anglia Accreditation not yet checkedOwn websiteUK-wide
TP Knotweed Solutions
Based in Banbury, Oxfordshire · Covers Whole of the UK Accreditation stated by provider: PCA Approved, CSJK-certified surveyors, NPTC-certified contractorsOwn websiteUK-wide
Japanese knotweed survey in other regions
London (8) South East (10) East of England (6) South West (8) West Midlands (11) East Midlands (6) North West (8) North East (4) Wales (11) Scotland (3) Northern Ireland (5)
About japanese knotweed survey
Japanese knotweed can damage structures and is notoriously difficult to get rid of. If it’s suspected on a property you’re buying, selling or building near, mortgage lenders will usually want a survey and a management plan from a specialist before they’ll lend.
Getting signed off in England
In England, your council’s building control team or a registered building control approver checks the work. They issue a completion or final certificate once they have the reports they need, such as the as-built SAP, EPC, air test and any sound or ventilation test results.