Japanese Knotweed Removal Specialists in London
TPKnotweed are London’s trusted experts in Japanese Knotweed identification and removal. With over a decade of PCA-certified experience, we protect properties across Camden, Islington, Croydon, and all boroughs with a 10-year insurance-backed guarantee.
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The Japanese Knotweed Problem in London
Japanese Knotweed is a major issue for London property owners, growing up to 10cm daily and spreading across at least one site per 10km² in the capital.
Here’s why it demands attention:
- Property Damage – Its roots break through concrete, tarmac, and foundations, risking costly repairs.
- Value Impact – Lenders often reject mortgages on affected homes, cutting values by up to 10-15%.
- Legal Risks – UK law requires you to prevent its spread to neighbouring properties—failure can lead to fines.
- Environmental Threat – It outcompetes native plants, harming London’s gardens and riverbanks.
- Costly Delay – The longer you wait, the worse it gets—early action saves thousands.
London’s estimated treatment bill?
£1.56 billion
Don’t let your property add to that.
Why You Need a Professional Survey
Spotting Japanese Knotweed isn’t easy, its bamboo-like stems and heart-shaped leaves can trick the untrained eye. A TPKnotweed survey delivers:
Accurate Identification
PCA-certified experts confirm knotweed with no guesswork.
RICS-Compliant Reports
Essential for mortgage lenders, buyers, or sellers.
Risk Assessment
We gauge the infestation’s scale and damage potential.
Tailored Solutions
Receive a detailed removal plan suited to your property.
Early detection stops knotweed in its tracks.
Our London Knotweed Services and Removal Costs
Costs vary by infestation size, location, and your property plans:
Survey
£360 (incl. VAT) for residential, £720 (incl. VAT) for commercial—deducted from treatment if you proceed.
Our London-based, PCA-accredited surveyors inspect your property, neighbouring areas (where accessible), and provide:
- Full photographic evidence.
- GIS CAD site plan.
- RICS 2022-compliant report within 24 hours.
- Checks for other invasives (e.g., Giant Hogweed, Himalayan Balsam).
Herbicide Treatment Programmes
From £1,900+VAT for residential gardens, covering a 5-year plan, waste clearance, and monitoring reports.
10-year insurance-backed guarantees start at £95.20 (up to £5,000 contract value).
Complete Excavation & Off-Site Disposal
From £10,000+VAT for residential gardens, including excavation, landfill disposal, and risk statements.
Guarantee pricing depends on contract value.
The UK spends £166 million yearly on knotweed—acting fast keeps your costs down. Every job includes our 10-year warranty with follow-up inspections.
Other Invasive Species We Treat in London
We also handle Giant Hogweed, Himalayan Balsam, and other invasive plants threatening London properties.
Giant Hogweed
Horsetail
Himalayan Balsam
Our Fast And Clear Process
Book a Survey
Call or request online, simple to start.
Quick Contact
We respond within 24 hours to schedule.
On-Site Visit
Our experts assess your property thoroughly.
Detailed Report
Get your RICS-compliant findings and removal plan within 24 hours.
Removal Done
Knotweed cleared with a 10-year guarantee, including quarterly checks for the first year.
Identifying Japanese Knotweed
Unsure if it’s knotweed? Look for:
- Green, heart-shaped leaves.
- Hollow, bamboo-like stems with purple speckles.
- White flowers in late summer (September-October).
- Reddish-purple shoots in spring, growing up to 3m high.
Still in doubt? Send us a photo—we’ll check it free of charge.
Why Trust TPKnotweed?
London Specialists
We know the capital’s knotweed hotspots, from Hackney to Lewisham.
PCA Accreditation
Certified expertise you can rely on.
10-Year Guarantee
Quarterly checks year one, annual visits after—no recurrence, no extra cost.
Fast Response
Surveys and plans in 24 hours—faster than most.
“TP Knotweed saved my sale with a quick survey and removal.”
– John, Hackney.
– Sarah, Islington.
Frequently Asked Questions
If you suspect Japanese Knotweed, a survey is essential for legal and financial protection.
We aim to offer next-day survey availability in most areas, subject to booking.
Pricing starts at £360.00 (inclusive of VAT) for residential and £720.00 (Inclusive of VAT) for commercial properties, depending on location. We provide a transparent quote with no hidden fees.
Yes cost of survey is deducted from the treatment plan quote.
You’ll receive an official report, and a tailored removal plan (if required) 24 hours after the survey.
Our surveys are conducted by certified experts, ensuring a thorough, mortgage compliant assessment, free surveys often lack this depth and reliability, surveys are also sent out within 24 hours where as other competitors can take up to 2 weeks.
Treatment costs depend on the infestation size and location. We’ll provide a detailed quote with your survey report.
Yes, our official report is often used by clients to negotiate with buyers, sellers, or lenders.
Our report reflects findings at the time of the survey. If Knotweed emerges later, contact us to reassess—additional surveys may be needed.
Act Today—Protect Your Property
Japanese Knotweed doesn’t wait—neither should you. Call 0800 389 1911 or book a survey now. Receive your report and removal plan in 24 hours and secure your London property with TPKnotweed’s expert care.
