Japanese knotweed removal in Portsmouth
At Knotweed Specialists UK, we are located in Cosham and offer professional knotweed removal services across Portsmouth including Cosham, Drayton, Baffins, Fratton, Southsea, Milton, Hilsea and surrounding areas.
As experts in effective Japanese knotweed removal, we offer specific packages to suit all client’s needs. Whether the infestation is large or small, residential, or commercial, we offer a wide range of Japanese knotweed solutions local to you.
For effective Japanese knotweed removal in Portsmouth, contact our team at Knotweed Specialists UK on 023 8251 2752.

Portsmouth case study
Learn about how we tackled a Japanese knotweed infestation in a commercial property in the Portsmouth area in our case study.


Why choose us?
We are experts in our field
Knotweed Specialists expertly treat Japanese Knotweed, we identify it and we control it. We do not provide a host of gardening services, we are not ‘a jack of all trades’ business, we specialise in what we are the best at – managing knotweed solutions.
We offer a bespoke and personal service
Being a smaller company enables us to know all our customers individually and provide them a bespoke approach to their problems. The management team are involved at every stage of your customer experience, so a professional experience is guaranteed.
We are competitively priced
We pride ourselves on providing all our customers with a sustainable Knotweed solution at an exceptionally competitive price, with the addition of a site survey.

Japanese knotweed in Portsmouth
Portsmouth is one of the UK’s hotspots for Japanese knotweed, with a higher than average density in the area. This year Portsmouth City Council announced the most popular areas within Portsmouth that are affected with Japanese knotweed by displaying an interactive map which highlighted Southsea, Fratton and Copnor. Whilst it is not illegal to have Japanese knotweed in your garden or business premises, it is illegal to allow it to spread onto neighbouring properties or land.
‘It’s not illegal to have Japanese knotweed in your garden, but on your property, you should aim to control the plant to prevent it from becoming a problem in your neighbourhood.’
Portsmouth City Council has strict rules concerning the control of Japanese knotweed, and we are a fully licensed and recognised removal and management company. We know everything there is to know about Japanese knotweed.
Meet our experts
Our certified experts are fully qualified to survey your property and remove Japanese knotweed. We offer the following Japanese knotweed services in Portsmouth:
Japanese knotweed removal
Japanese knotweed surveys
Japanese knotweed management
If you suspect that your property may be infested by Japanese knotweed, it is important that you get in touch immediately. Allowing the invasive weed to grow can cause significant damage to your property and could even lead to legal issues.

What our customers say
Frequently Asked Questions
Why is Japanese knotweed a problem?
Japanese knotweed (Fallopia japonica) is a huge problem in Portsmouth due to its ability to out-compete native plants for resources and light, weakening the soil’s integrity with its deep, penetrating root system. In many cases, efforts to remove outer growth are futile because roots can extend several metres deep into the ground, making it extremely difficult to ultimately eradicate.
Japanese knotweed can damage concrete foundations due to expansive rhizomes in search of water, causing walls to crack and buckle. Many homeowners have found themselves facing costly repairs caused by Japanese Knotweed infestations on their properties.
What happens if I have Japanese knotweed?
If you suspect you have Japanese knotweed, it is important to address the issue as quickly as possible due to its ability to spread rapidly and cause significant damage. It can overpower garden borders, invade properties through cracks in brickwork, block drains, and create large underground root systems.
We offer various control methods such as herbicide treatment and fire-freezing, administered by qualified professionals. If left untreated it can seriously impact the quality of your land or property which may lead to loss of value in the future.
Should I be worried if my neighbour has Japanese knotweed?
Japanese knotweed can be an unwelcome and often unsightly guest in gardens. If your neighbour has it growing on their property, then there is certainly cause for concern. Not only does this aggressive plant blur boundaries by encroaching onto neighbouring land, but it is capable of quickly damaging buildings and infrastructure as its network of roots burrow deep.
It is, therefore, important to act swiftly to ensure the spread of Japanese knotweed is minimised in order to protect both your landscape and property values. To do this, you may need to discuss the issue with your neighbour and enlist the help of a professional service that specialises in Japanese knotweed eradication.






