The Landscaping Expert

13/08/2026

Loose paving maybe a bigger problem that first thought... or is it?

"What do you do next?"... read more here

A patio should feel solid underfoot. The paving should remain stable, the joints should stay intact and the finished surface should drain properly. Therefore, when slabs begin to rock, move or become noticeably uneven, it is reasonable for a homeowner to question whether something has gone wrong ben...

26/07/2026

Is your garden project beginning to go wrong?

Loose paving, unstable decking, poor drainage, unexplained additional costs or work that differs from the agreed design should not be ignored.

Early independent technical advice can identify the real cause before defects are concealed, costs escalate and positions become entrenched.

https://landscapingexpert.co.uk/when-a-garden-project-starts-to-go-wrong-why-early-technical-intervention-matters

When a garden project starts to go wrong, most homeowners initially hope that the contractor will simply put matters right. That response is entirely understandable because landscaping projects rarely progress without minor adjustments, questions or occasional setbacks. However, there is an importan...

27/06/2026

Specialist landscaping evidence matters.

I recently gave independent landscaping evidence in a reported Upper Tribunal matter involving a substantial garden restoration claim.

The case reinforced something I see often in expert witness work: a tribunal does not simply need a figure. It needs clarity.

It needs to understand what has happened, what reinstatement reasonably requires, where remedial aftercare ends and ordinary maintenance begins, and how the cost has been assessed.

Measured evidence is not about producing the highest or lowest number. It is about providing practical, professional and properly reasoned opinion that can be tested.

That is the value of specialist expert witness work in landscaping disputes.
New insight here https://landscapingexpert.co.uk/why-clear-and-measured-landscaping-evidence-matters-in-garden-restoration-disputes

High-value landscaping disputes are rarely just about plants, lawns, paving or garden maintenance. More often, they involve a combination of practical site issues, remedial methodology, cost reasoning, aftercare, future allowances and proportionality. That is why measured landscaping evidence matter...

25/06/2026

Are the right experts being appointed in landscaping disputes?
It’s a fair question.

A building surveyor may be exactly the right expert for a building dispute.

But if the dispute is about decking, paving, lawns, planting, irrigation, drainage or wider garden construction, should a landscape expert be considered instead?

This is not about criticising judges, solicitors or building surveyors.

It is about matching the expert to the issue.
You would not usually appoint a landscape consultant to report on a complex house-build dispute.

So why appoint a building expert where the real issue is landscaping?

I have written a cornerstone piece on this here:

When a landscaping dispute reaches court, the appointment of the right expert can have a major influence on how the case is understood. That may sound obvious, but in practice the discipline of the expert does not always match the technical issues that need to be considered. It is common for parties...

07/06/2026

Mediation can be a sensible route in landscaping disputes.
When a garden project goes wrong, the disagreement can quickly become expensive, stressful and entrenched.

The issue may be paving, drainage, decking, levels, planting, workmanship or unfinished work. However, the real problem is often that both parties are arguing without a clear technical position.

Mediation works best when the facts are understood.
What is defective? What is reasonable? What needs to be put right? What is proportionate?

Independent technical opinion can help narrow the issues before costs increase further.

Court will sometimes be necessary. But in many landscaping disputes, a clear technical view and a willingness to mediate can provide a more practical route to resolution.

New Insight: Why Mediation Can Be the Sensible Route in Landscaping Disputes

https://landscapingexpert.co.uk/why-mediation-can-be-the-sensible-route-in-landscaping-disputes

01/06/2026

A recent feedback from a domestic client.

"We were extremely grateful for the time Karl and Janine took to visit our home. It was lovely to meet them both, and we truly appreciated the help, support and guidance they provided throughout the process.

We were particularly grateful for the care and watering plan that was put together for us going forward, giving us a clear understanding of what we needed to do to help our planting and give it the best possible chance of recovery.

The advice was balanced, professional and easy to understand, helping us better understand the issues we were facing and the options available to us. We appreciated the willingness to answer our questions and provide clear recommendations based on the site conditions observed.

Thank you again for all the help and support. It was greatly appreciated."

Karl Harrison independent landscaping consultant for expert witness, decking expert opinion, CPR part 35, covers the UK based in Amersham.

18/05/2026

Karl Harrison Expert Witness

From the Expert’s Desk
A landscaping dispute can quickly become a disagreement about everything.

One person says the work is defective. Another says it is acceptable. Costs are exchanged. Photographs are produced. Standards are mentioned. The real technical issues can then become buried under frustration and assertion.
Independent expert evidence should bring the matter back to structure.

What was agreed? What was installed? What standards, guidance or workmanship expectations apply? What has failed? What caused the failure? What is a reasonable remedial route?
That is the part of the process I find most important. The expert should not add drama to the dispute. The expert should help remove it.

One of the reasons I wrote about this in more detail on Landscaping Expert is that early technical clarity can often change the way a dispute is understood.

14/05/2026

What Does an Independent Landscape Expert Witness Actually Do?

What does an independent landscape expert witness actually do?
In landscaping and external works disputes, the role is not to take sides. It is to inspect, analyse and explain technical matters clearly, using the available evidence, relevant standards and professional judgement.

Our Insight looks at the practical work involved, including site inspections, document review, technical assessment, causation and expert opinion.
Read the full Insight on Landscaping Expert here

https://landscapingexpert.co.uk/what-does-an-independent-landscape-expert-witness-actually-do

Most people understand what a landscaper does. Far fewer understand the role of an independent landscape expert witness. This post explains how experts bridge the gap between technical landscaping issues and the legal system, and how that helps homeowners, solicitors and the court reach fair outcome...

07/05/2026

Why Experience Matters: Training, Qualifications and Ethics Behind Landscape Expert Witness Work

From the Expert’s Desk - Not every “expert” is equal.

In high-value landscape and external works disputes, technical knowledge on its own is not enough. The expert also needs judgment, independence, proportion, procedural discipline and the ability to explain complex site matters clearly.

Experience matters because disputes rarely arrive neatly packaged. They involve incomplete records, conflicting accounts, mixed workmanship issues and questions of causation that require more than theory.

One of the reasons I wrote about this in more detail on Landscaping Expert is that the quality of the expert can materially affect the quality of the dispute process itself.


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21/04/2026

Single Joint Expert: what it is and how it works

What is a Single Joint Expert in a landscaping dispute, and when does that route make sense?
Our latest Insight explains the purpose of the SJE, how the role differs from party-appointed experts, and why independence and clarity of instruction matter from the outset.

Read the full article on Landscaping Expert -

https://landscapingexpert.co.uk/single-joint-expert-what-it-is-and-how-it-works

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Why solicitors use a Single Joint Expert When a dispute involves technical landscaping issues, the parties often need independent evidence to move matters forward. However, two separate experts can increase cost and widen disagreement. That is why the court, or the parties by agreement, may appoint....