Free photo check · Mon–Fri 8am–6pm, Sat mornings · Stockport, Cheadle, Marple and Hazel Grove
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Knotweed spraying programme in Stockport

Herbicide treatment across several seasons, with return visits.

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

What this job actually involves

Knotweed spraying programme — how it works here

Knotweed spraying programme in Stockport

For most gardens, spraying is the sensible route. Treatment happens during the growing season and is repeated for three to five years until nothing returns, with monitoring after that. It costs less and disturbs less than digging, unless a sale or a build date forces things along.

A spraying programme year by year

The main treatment is in late summer and early autumn, when the plant is sending nutrients down to the rhizome and takes the herbicide with them. The following spring the stand is thinner, with fewer and shorter canes, and the cycle repeats. Most gardens see steady shrinkage over three seasons.

Heavy rain soon after spraying can wash product away, and wind can drift it onto plants you want to keep. Near the Mersey, the Goyt, the Tame or any brook, only products approved for use by water can be used, and some places need permission first. Your operative will explain what applies to your garden.

Success means two clear seasons without regrowth, not an empty patch in July. Every visit is logged with photographs, and that log is what a lender or buyer will want to see. If shoots do return, we treat them and adjust the programme.

On the ground

What this looks like around Stockport

A surveyor marking out a stand along a long terraced garden.
A surveyor marking out a stand along a long terraced garden.
Red-purple spears breaking through block paving by a garage.
Red-purple spears breaking through block paving by a garage.
A summer stand on a canal embankment, with a brick bridge beyond.
A summer stand on a canal embankment, with a brick bridge beyond.
Step by step

How knotweed spraying programme works with us

  1. Photograph it.

    One leaf and a stretch of stem is enough. Use the contact form or message us. It costs nothing.

  2. We come and survey.

    If it is knotweed, we visit, measure the stand and note what is close to it.

  3. Spray or excavate.

    A programme across several seasons, or digging it out when the date will not move.

  4. Report and aftercare.

    A written plan for you and your lender, then return visits until nothing regrows.

What it costs

Clear pricing for knotweed spraying programme in Stockport

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.

See full price guide →

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

Questions about knotweed spraying programme

Can the children and dog use the garden meanwhile?
Keep them off the treated patch for the period shown on the product label. The rest of the garden is unaffected.
How do I know if it is Japanese knotweed?
Start with the stem: hollow like bamboo, flecked purple and bending in a zig-zag at every joint. The leaves are shield-shaped with a flat edge where the stalk joins, and in late summer it throws up sprays of cream flowers. Old brown canes can stand through the whole winter. Sending us a photo is quicker than comparing pictures on your phone.
Is it illegal to have knotweed in my garden?
No, owning land with knotweed on it is not an offence. The law is broken if you let it spread into the wild, and soil or cuttings count as controlled waste. If it moves into a neighbour's garden, they may be entitled to bring a claim against you.
Will knotweed stop me getting a mortgage?
It does not rule one out. Plenty of lenders will go ahead if there is a professional survey, a treatment plan and an insurance-backed guarantee that can pass to the buyer.
How long does treatment take?
Most spraying programmes run for three to five growing seasons, with monitoring afterwards. Digging it out takes days rather than years, but the bill is a good deal higher.
Can I just dig it out myself?
We would not. Small fragments of rhizome regrow, and the soil cannot go in your wheelie bin or be taken to the household waste site.
Where we do it

Knotweed spraying programme across Stockport

Heaton Norris· Heaton Moor· Heaton Mersey· Edgeley· Reddish· Cheadle· Marple· Hazel Grove

Also available

Other services

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