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UrgentCommon in JanRecommended trade: Surveyor

Japanese Knotweed Near Property

Japanese knotweed found on or near the property during a survey, which can affect mortgages and property value.

What Is Causing This?

  • 1Knotweed spreading from neighbouring land
  • 2Existing knotweed on the property from contaminated soil
  • 3Fragments spread by previous building or landscaping work

How Urgent Is This?

Urgent

This needs prompt attention. Delaying could cause further damage, safety risks, or significantly higher repair costs.

What Needs to Be Done

A specialist knotweed surveyor will assess the extent, prepare a management plan, and arrange treatment (usually herbicide injection over 3 to 5 years) with a guarantee acceptable to mortgage lenders.

How Much Will It Cost?

£500 – £1,133

National average estimate

Labour: £500 – £1,100 | Materials: £0 – £33

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Prices are estimates based on typical UK rates. Actual costs depend on the specific issue, accessibility, and your location. All quotes from tradespeople on Tradesfolk are completely free.

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How to Prevent This

Check for knotweed before purchasing any property. Do not cut, strim, or disturb knotweed as this spreads it. Report knotweed on neighbouring land early.

Related Problems

Other Surveyor Problems

Frequently Asked Questions

What causes japanese knotweed near property?
Knotweed spreading from neighbouring land. Existing knotweed on the property from contaminated soil. Fragments spread by previous building or landscaping work.
Is japanese knotweed near property serious?
This needs prompt attention. Delaying could cause further damage, safety risks, or significantly higher repair costs.
How much does it cost to fix japanese knotweed near property?
Our illustrative trade-wide planning range is £500 to £1,133 and is not a diagnosis-specific quote. The actual repair may fall outside this range. Get a free quote from a local surveyor on Tradesfolk.

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