Eradicating Japanese Knotweed from Estate Agents’ Properties

The life of an estate agent is far from easy, with many hurdles and battles along the way. For those involved in the rental side of the business, apart from getting, vetting and keeping tenants happy, property maintenance can be a headache — especially if you’re involved in a seemingly endless battle with Japanese knotweed.

As many estate agents will be all too aware of by now, Japanese knotweed is a beast of a plant that almost appears immortal and grows up to 4cm a day. Nothing seems to kill it off — not spraying this highly invasive species with great amounts of weed-killer, or even digging it out of the ground. It just keeps on growing, posing real challenges to properties and those living in them. Plus, there are severe legal implications for property owners who let Japanese knotweed spread onto neighbouring properties, or who don’t dispose of it properly.

As many estate agents will be all too aware of by now, Japanese knotweed is a beast of a plant that almost appears unstoppable. It is notoriously hard to kill it off, and there are severe legal implications for property owners who let Japanese knotweed spread onto neighbouring properties, or who don’t dispose of it properly.

Selling Up with Japanese Knotweed

Then there is the entire issue of estate agents preparing to sell a property for a client, only to discover that it has Japanese knotweed growing in the garden or elsewhere. The roots can easily grow into cracks in walls, expanding them as they go and causing structural damage to homes. The weed — paradoxically brought into the UK in the 1800s as an ornamental plant — can interfere with water and sewage pipes and even grow up through asphalt in the driveway and floorboards in a house. It can seem like an unstoppable alien invasion.  

It’s for these reasons that mortgage providers will typically not approve a new mortgage if the surveyor’s report indicates there’s Japanese knotweed on a property that a potential new customer wants to buy. They will insist that professional eradication first be carried out and that it comes with an iron-clad guarantee that Japanese knotweed won’t grow back on the property. If it does reappear, estate agents insist that further work is carried out by an expert Japanese knotweed eradication firm.

In recent times, many people have been shocked to read in the papers that Japanese knotweed is even responsible for dramatically slashing the value of properties. In one case last year, a pensioner in Wales learned to his horror that his home that he was trying to sell was not worth the £130,000 it had previously been valued at, but almost half that amount: just £70,000. It was all because a surveyor discovered Japanese knotweed on the property.

Killing off Japanese Knotweed for Good

There is one thing the Japanese knotweed experts will tell you: that DIY methods to eradicate the plant just do not work. You can spend vast amounts of time and effort — and plenty of cash — trying to kill the thing off yourself, but it just keeps popping back up, Lazarus-like, and will not die off. There’s really only one solution. It’s a minor investment that will work and save time and money, as well as ensuring the value of properties is secured. It’s time to call in the pros.

Available to expert Japanese knotweed eradication firms are potent herbicides that are not available to the public. They’re able to use these in a variety of ways to kill Japanese knotweed and make sure it stays that way: dead. Herbicide treatments take some time, however — usually at least two growing seasons — and that may not be an option for estate agents looking to deal with the problem ahead of a rental or sale.

If time is critical, Japanese knotweed removal firms can do a controlled dig-out of the infested site and make sure none of the roots are left in the ground to start growing again. This can be done in a matter of days and, with an insurance-backed guarantee for up to a decade, it’s happy estate agent days once again.

EAN Content

Content shared by this account is either news shared free by third parties or sponsored (paid for) content from third parties. Please be advised that links to third party websites are not endorsed by Estate Agent Networking - Please do your own research before committing to any third party business promoted on our website. As an Amazon Associate, I earn from qualifying purchases.

You May Also Enjoy

Breaking News

How will tenants be affected by the incoming Renters’ Rights Act?

On 28th October 2025, the Renters’ Rights Bill was passed into law, and it is now the Renters’ Rights Act. Changes to legislation resulting from this new Act will take effect from May 2026. This will affect landlords and how they let out their property, and it is worthwhile being aware of how it affects…
Read More
Seaside Properties UK
Overseas Property

Gibraltar property values rise faster than UK

Gibraltar house prices rise faster than UK and London, despite market activity dropping 46% The latest market analysis by Enness Global has revealed that Gibraltar’s property market has seen stronger annual house price growth than both the UK and London, even as the number of transactions completing across the market has fallen sharply, creating a…
Read More
Breaking News

Homes with fewer photos priced £80,000 lower

The latest research by London lettings and estate agent, Benham and Reeves, has revealed a stark disparity in asking prices depending on how extensively a property is marketed, with homes listed using four photos or fewer priced almost £80,000 lower on average than those benefiting from five or more images. Benham and Reeves analysed current…
Read More
Breaking News

January market momentum builds

Analysis of the latest market data by eXp UK has revealed that the UK property market has picked up pace in January, with both new instruction volumes and the price of these new listings increasing when compared to the same period in previous years. eXp UK analysed the latest market data*, looking at both new…
Read More
Breaking News

Breaking Property News 28/1/26

Daily bite-sized proptech and property news in partnership with Proptech-X.   Tenancy Deposit Scheme further enhances rental UX with continued tie up with tlyfe app TDS has announced a multi-year extension of its partnership with tlyfe, the fast-growing tenant lifecycle app powered by OpenBrix. Expanding coverage across England & Wales, Scotland and Northern Ireland, the new…
Read More
Rightmove logo
Breaking News

More affordable locations grew most in price in 2025

New analysis of the 2025 market highlights that lower-priced locations grew the most in asking prices during 2025 as affordability continued to drive buyer behaviour Across the top 50 local areas where property asking prices grew the most last year, only seven are priced above the current national average of £368,031 Hawick in Roxburghshire in…
Read More