Repair or Rebuild? Assessing the Remedy in Defective Landscaping Claims

The homeowner wants the garden taken out and rebuilt. The contractor says a few repairs will put everything right. Two replacement quotations arrive, each proposing different work at a different price.

For the solicitor, the difficulty is knowing which approach the evidence supports.

Identifying defective landscaping is only part of the task. Establishing the necessary remedial work can be just as contentious, particularly where the parties have lost confidence in one another.

A defect does not establish the scope of replacement

A loose paving slab may require a local repair. Several loose slabs may indicate a wider problem with the bedding or supporting construction. Neither observation, taken alone, establishes that the whole patio needs replacing.

The investigation needs to establish how far the defective work extends and whether the surrounding construction provides a reliable basis for repair.

Counting visible defects is therefore rarely enough. The expert should explain why the proposed intervention is necessary and what can reasonably remain.

A repair must work within the existing garden

Gardens contain connected elements, so changing one can affect several others.

Consider a patio that directs rainfall towards the house. Adding a drainage channel may appear straightforward, but it needs somewhere suitable to discharge the water. Altering paving levels could also affect steps, thresholds and adjoining paths.

A credible remedial proposal should explain how the finished arrangement will function. The same scrutiny should apply to complete reconstruction: why can the existing installation not reasonably be adapted?

Replacement quotations need a detailed specification

Two contractors can inspect the same garden and price quite different solutions. Comparing their totals does little to establish the reasonable cost of addressing the defects.

Before obtaining remedial quotations, a detailed specification should define the necessary work, supported by drawings and measured quantities where appropriate. It should identify what remains, what requires removal, the materials and construction methods, and associated protection, disposal and reinstatement. Each contractor can then price the same requirements, identifying exclusions or proposed alternatives separately.

This helps prevent the scope drifting from necessary remediation into a more extensive garden refurbishment. It also reduces the risk of a homeowner favouring the most expensive proposal because it appears to offer greater reassurance.

A clear connection between the defects, specified remedy and resulting cost gives the court an organised assessment to examine. It is fair to both parties: necessary work receives a proper allowance, while additions and upgrades remain identifiable.

Opening up should answer a specific question

Concealed construction often determines whether a proposed repair is viable.

Carefully selected inspection openings can help establish whether the problem concerns the surface installation or extends into the supporting layers. However, findings from one location should not automatically become conclusions about the entire garden.

The expert should explain why each location was selected, what it revealed and how confidently the findings apply elsewhere. Where uncertainty remains, further investigation may be necessary before recommending extensive work.

Allowances need reasons

Remedial costs can extend beyond the immediate construction work. Restricted access, temporary protection and the establishment of replacement planting may all require consideration.

Each allowance should have an identifiable purpose. Additional care needed to establish replacement planting should be distinguished from maintenance the owner would ordinarily undertake.

Similarly, a contingency should explain the uncertainty it addresses. A percentage alone offers little assistance if the underlying risk remains unexplained or another allowance already covers it.

Give the solicitor a reasoned choice

Karl Harrison, independent landscape consultant and expert witness at Landscaping Expert Ltd, assesses construction defects alongside the practical requirements of remediation.

Useful technical evidence should explain what can remain, what needs intervention and why the proposed approach should succeed.

Where several solutions are technically viable, the report should explain their differences and limitations. A defined specification and transparent cost assessment then give solicitors a firmer basis for advising their clients and negotiating a workable resolution.

Written by Karl Harrison