Mortgage providers see Japanese Knotweed as a potential structural and legal risk. If it’s on or near your property, it may:

• Lower market value
• Cause neighbour disputes
• Complicate or block sales and refinancing
• Raise red flags for insurance underwriters

Without a formal plan in place, many lenders will decline or postpone applications — especially on affected property titles.

• A professional survey by a UK-recognised contractor
• A written treatment plan with schedule and proof of action
• Monitoring and treatment record logs (up to 5 years)
• Insurance-backed guarantees (in some cases)

KnotEnd supplies all this as standard — with rapid turnaround and no jargon.

We work closely with solicitors and surveyors to deliver lender-ready documentation. Whether you’re selling, buying, or refinancing:

• Site survey within 48 hours (subject to area)
• Custom treatment plan built to lender expectations
• Documentation ready to submit to legal or mortgage teams
• Clear paper trail in case of future dispute

If you're on a deadline, just let us know — we prioritise urgent requests.

Can I still sell my house with knotweed?

Yes. It’s legal to sell a property with knotweed — but only if you disclose it and show you're actively managing it. We’ll handle the legal documentation for you.

Will a lender refuse if knotweed is nearby?

It depends. Some lenders refuse, others approve if there’s a formal treatment plan in place. Our plans are accepted across the UK by major banks and brokers.

Do I need an insurance-backed guarantee?

Sometimes. If required, we’ll include one — or connect you with our guarantee partner. You’ll be fully covered either way.

Will biological treatment be accepted?

Yes — when combined with a professional plan and monitoring log. Our documents meet lender criteria and comply with mortgage regulations.