Japanese Knotweed Survey

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If you suspect that Japanese knotweed is present on your site, or you have been asked for a survey already, Arbtech can carry out a Japanese knotweed survey using our expert knowledge and years of experience.

A survey is very important because the costs of removal and treatment can be significant. Your survey will allow you to factor in any delays to your project and minimise the impact of a knotweed infestation. We work to BSI PAS 2010 and the IEEM Code of Practice.

Full UK Coverage

We can carry out knotweed surveys all over the UK.

Unbeatable Price

Our attention to detail, investment in technology and sheer scale allow us to keep prices low.

Money back guarantee

Your planning authority will accept our report, or you get your money back!

Unbeatable Speed

Instant quotes. Enquiries responded to in hours, not days. Surveys in days, not weeks.

We SAVE You Money

Our efficiency and expertise has saved our customers tens of millions of pounds in delays on site.

Proven Record

We provide thousands of ecological or arboricultural surveys each year.

How it Works

We are focussed on delivering the fastest, most efficient service possible and we years of experience dealing with Japanese Knotweed.

Step 1

Fill in the form or call us

Get in touch using the form above or the contact number on this page.

Step 2

Give us the go-ahead

We provide everything you need to know to get started including a booking form.

Step 3

Get Your Report

When you book our services, we get to work at a mutually convenient date and complete your survey.

Client Feedback

Bat Surveys

This was a quick and relatively pain free process for something needing for a planning application. Arbtech are professional and we would recommend them if you need the same service.

4 stars
Preliminary Ecological Appraisal / Phase 1 Habitat Survey

Excellent service.

5 stars
Scoping Bat Survey (Walkover)

Always provide a great, fast and price competitive service. -Mark Prestwich, Oldham Council

5 stars

When can this survey be done?

Jan January - yes
Feb February - yes
Mar March - yes
Apr April - yes
May May - yes
Jun June - yes
Jul July - yes
Aug August - yes
Sep September - yes
Oct October - yes
Nov November - yes
Dec December - yes

Yes Ask Us No

Learn More

Japanese knotweedThere’s lots of things you may want to know if you suspect you have Japanese knotweed on your site. You’ll find everything you’re ever likely to want to know about your Japanese knotweed survey here, but if you still have questions just give our experts a call!

Japanese Knotweed Background

Within the Wildlife and Countryside Act (as amended) 1981, there is provision that any person that releases or allows to escape into the wild any animal, which:

a) is of a kind which is not ordinarily resident in and is not a regular visitor to Great Britain in a wild state; or
b) is included in Part I of Schedule 9, shall be guilty of an offence.

Also, any person that causes to grow (which includes causing it to spread from one site to another) in the wild any plant which is included on Part II of Schedule 9; shall be guilty of an offence. Currently, Japanese knotweed is included on this list.

Knotweed is also listed as controled waste under the Environmental Protection Act so it can only be disposed of at licenced landfill sites. Japanese knotweed was brought over to Europe, from Japan by a botanist named Phillipp von Siebold. At first, the plant was was praised for it’s beauty and potential for use as animal feed. Eventually it made it’s way into the Royal Botanical Gardens in Edinburgh and began to be sold commercially by nurseries. As the plant started to make it’s way accross the UK, it eventually got out of control by spreading, undetected via waterways and the movement of contaminated soil that was used for construction.

Why Knotweed Causes Problems

Knotweed causes problems because it spreads so quickly and it is very difficult to get rid of. It is a robust plant, capable of growing in difficult conditions on the sides of Japanese volcanos, so in the comparatively welcoming climate of the UK it can grow far more rapidly. You may of heard the horror stories of home owners having the price of their home slashed because it emerged that Knotweed was present on their property or property developers being refused planning permission due to Knotweed on the site.

Japanese Knotweed and Mortgages

Winter stand of Japanese knotweed

Winter stand of Japanese knotweed

If a surveyor finds Japanese knotweed on a site and includes this in a report, it can seriously harm the chances of a loan provider giving you the funds you need. Some lenders including Barclays and Santander require that you get a professional in to eradicate the knotweed before a mortgage offer is made. Knotweed eradication can cost in the region of £3000 and it can take some time to sort out the problem, with treatments sometimes needing to be done over a number of seasons.

Other lenders have slightly more flexible guidelines. Nationwide, Northern Rock and Clydesdale all require a report from a specialist surveyor before they would consider lending. Mortgage lenders are worried about lending on houses that are infected with Japanese knotweed because infestations can seriously affect the ability for the property to be resold in the future and in extreme circumstances the roots can even affect drainage systems and foundations.

Starting Your Japanese Knotweed Survey

Arbtech can provide a Japanese knotweed survey by our experienced consultants. It is important to seek professional advice if you have been asked to obtain a Japanese knotweed survey and the first step is to simple give us a call or fill in the quote form by clicking on the ‘Get a Free Quote’ button on this page. We will be able to provide you with a free quote that explains everything you need to know.