Japanese Knotweed Insurance Backed Guarantees
An Insurance Backed Guarantee (IBG) adds another layer of protection to your knotweed treatment or excavation work. Offered through our PCA membership, it covers you even if ECS were to cease trading, giving added security for lenders and long-term peace of mind for property owners.

Fact
Fact
Japanese knotweed can grow up to 10cm per day in peak season.
Fact
Japanese knotweed can cause costly delays on construction sites if not identified early.
Why choose Eco Control Solutions for an Insurance Backed Guarantee?
Most treatment plans come with our own 10-year warranty, but some mortgage lenders require additional cover before releasing funds. An IBG is separately underwritten and designed to support that need. It ensures your property remains protected and compliant, even if ECS is no longer trading during the contract or warranty period.
How does it work?
Site visit or
photo ID
We assess the site using images or by arranging a visit, confirming the presence and extent of the knotweed.
Treatment recommendation
You’ll receive a clear plan outlining the best removal method, herbicidal, excavation, burial or translocation, based on your needs.
Removal carried out
with precision
We deliver the chosen treatment using licensed methods, whether that’s excavation, spraying, or burial, while keeping the site safe, compliant and contained throughout.
Ongoing protection and
full documentation
Backed by a 10-year warranty and Optional Insurance Guarantee.
All documentation is issued for legal, lender or planning use, giving you long term peace of mind.
Eligibility confirmed during your site assessment
As part of our standard survey process, we’ll confirm whether your treatment or excavation plan qualifies for an Insurance Backed Guarantee.
Warranty issued with the treatment
Your ECS 10-year warranty is included as standard. If an IBG is needed, we’ll arrange cover through our PCA membership and issue the documentation directly to you.
Cover begins and stays in place
Once active, your IBG remains valid even if ECS were to stop trading. It guarantees continuity of cover and support through another PCA contractor if required.
Documentation for lenders and solicitors
All policy documents are issued for mortgage, legal or compliance use, giving you long-term protection and confidence in the value and status of your property.
Residential property
Japanese Knotweed Excavation and Removal in Residential Property
Our client was the owner of a residential property with very limited access to the rear of the house, which comprised of a decked terrace overlooking a long, narrow garden, which sat several feet lower than the house. There were two infestations of Japanese Knotweed present within the garden. The first was growing underneath and around a garden shed, the second was growing in a rockery that had previously been a pond. The client opted for a full excavation and removal, rather than a treatment solution, as they had plans to redesign the garden.
Discover more of our Japanese knotweed removal services
As one of the UK’s trusted names in invasive weed control, ECS stands out for our professionalism, reliability, and proven results.
Herbicidal Japanese Knotweed Treatment Services
We offer a cost-effective, long-term herbicidal treatment program for Japanese Knotweed, with a 10-year warranty and an Insurance Backed Guarantee option.
Japanese Knotweed Excavation & Removal Services
We fully excavate Japanese Knotweed infestations, removing all viable rhizomes and contaminated soil. Waste is handled in line with environmental regulations and disposed of at licensed facilities.
Cell Burial Services
We provide an on-site solution where Japanese Knotweed is excavated and safely contained within a sealed pit. The service is fast and compliant, removing the need for off-site disposal.