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Knotweed barrier membrane in Wigan

A vertical membrane along a wall or fence to keep rhizome out.

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Free photo ID check · Mon–Fri 8am–6pm, Sat mornings

What this job actually involves

Knotweed barrier membrane — how it works here

Knotweed barrier membrane in Wigan

A barrier is a tough membrane set upright in a trench along a boundary or around a structure. It is used when knotweed is on the far side of a wall and cannot be treated from your property, or to protect new work. It stops the rhizome crossing the line; the stand itself still needs dealing with.

Step by step

How knotweed barrier membrane works with us

  1. Photo first.

    Send a picture of a leaf and a stem. We tell you what it is, free.

  2. Visit and measure.

    If it is knotweed, we measure the stand and note what it is near.

  3. Spray or dig.

    A treatment programme over several seasons, or excavation if time is short.

  4. Report and follow-up.

    A written plan for your records and your lender, with visits until it stops coming back.

What it costs

Clear pricing for knotweed barrier membrane in Wigan

Every job starts with a free photo check. If a visit is needed, you get a written quote before any work starts — no obligation, no surprises.

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Survey from
£275
  • Free identification from a photo
  • Written quote before work starts
  • Report suitable for lenders and buyers
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Before you ring

Questions about knotweed barrier membrane

How deep does the barrier go?
Typically to around a metre or more, depending on the ground and what it is protecting.
How do I know if it is Japanese knotweed?
Check the stem first: knotweed stems are hollow like bamboo, speckled purple, with a ring at each joint and a zig-zag shape. The leaves are broad with a straight edge at the base. In autumn you will see little white flower sprays, and in winter brown dead canes. A photo to us is the quickest way to be sure.
Is it illegal to have knotweed in my garden?
Having it is not a crime. Causing it to spread into the wild is, and cut material has to be disposed of as controlled waste. If it spreads to next door, the neighbour may have a claim against you.
Will knotweed stop me getting a mortgage?
Not normally, as long as there is a proper treatment plan in place. Lenders tend to ask for the survey, the plan and a guarantee that transfers to the buyer.
How long does treatment take?
Spraying usually runs for three to five seasons, then monitoring. Digging it out is done in days but costs more.
Can I just dig it out myself?
Best not. Tiny pieces of root regrow, and you are left with soil you cannot put in the green bin or a skip without the right paperwork.
Where we do it

Knotweed barrier membrane across Wigan

Wigan town centre· Pemberton· Standish· Orrell· Ince-in-Makerfield· Hindley· Aspull· Shevington· Appley Bridge· Platt Bridge

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Also available

Other services

Knotweed survey We visit, confirm it is knotweed, measure it and write it up. Free knotweed ID from a photo Send us a picture and we will tell you what it is, at no charge. Knotweed plan for mortgages and sales The management plan lenders and buyers ask for, backed by a treatment programme. Knotweed coming from next door A record of where it is and which way it is spreading. Knotweed spraying programme Herbicide treatment across several growing seasons, with follow-up visits. Knotweed dig-out Excavation of the stand and rhizome when time is short. Knotweed on brownfield and building plots Surveys and removal for Wigan development sites. Knotweed for landlords Surveys and treatment across rented houses and blocks.
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