Eradicating Japanese Knotweed

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. 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.

If Japanese knotweed is not swiftly dealt with, its incredibly rapid growth — springing up by some 20cm a day during peak growing times in the spring and summer — means it will quickly overwhelm surrounding areas and grow into enormous bushes. Underground, it’s a similar nightmare, as the deep and wide root system starts to spread ever further and then sends new shoots up to cause all sorts of mayhem to properties.

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

More tenants enter the rental market

Tenant demand climbs across England in Q1 as rental market pressure builds for letting agents The latest research by The Letting Partnership has found that tenant demand across England remained strong during the first quarter of 2026, with 27.4% of all rental listings already securing a tenant, meaning that the country’s hottest rental markets are…
Read More
Estate Agent Talk

7 Ways Estate Agents Can Adapt to a Changing Property Market

The UK property landscape is evolving rapidly, and estate agents are under increasing pressure to implement innovative strategies. With shifting buyer expectations, new technologies, and alternative sales models entering the market, adapting your approach is essential. So, if you’re looking to see success with your agency, here are just seven key ways you can remain…
Read More
Letting Agent Talk

Spring clean drives high maintenance bill for landlord

The latest market insight from property management specialist, Rushbrook & Rathbone, suggests that property maintenance spend is set to surge in April, as the annual ‘spring clean’ by landlords saw the month account for the second highest proportion of total annual maintenance spend in 2025, as well as the largest average spend per work order. Rushbrook…
Read More
Breaking News

65% of homebuyers blame slow process on conveyancers

The latest research from Lyons Bowe reveals that 65% of recent homebuyers say the conveyancing process was the slowest part of their buying process, with a quarter saying the legal back and forth took more than 16 weeks to complete. Lyons Bowe commissioned a survey of 1,000 UK homeowners who made a purchase in the past…
Read More
Breaking News

UK Construction Activity Collapses

Glenigan’s April Construction Index uncovers an industry struggling to cushion the blows from ongoing international conflict and a persistently weak economy. Work starting on-site declined by 17% compared to Q4, remaining 18% below 2025 levels. Residential construction starts dropped by 13% during the Index period and fell by 30% against 2025 figures. Non-residential project-starts dipped…
Read More
Breaking News

Homebuyer demand down in Q1 2026

Buyer demand slips in Q1 2026, with South of England outperformed by North and Midlands The latest Sales Demand Index from eXp UK has revealed that homebuyer demand in England slipped by -1.6% in Q1 2026. The analysis also reveals a clear north-south divide with counties located in the midlands or north of the country recording…
Read More